ROUSH Blue Bird Vision Propane User manual

Blue Bird Vision Propane
Gen 4 Propane, 6.8L Ford V10
Service and Diagnostic Manual

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Gen 4 Blue Bird Vision Propane
Fuel System (6.8L V10)
SERVICE AND DIAGNOSTIC MANUAL
P19BB-01B001-AK
Revision History
-AC Updates 10/2019
-AD  06/2020
-AE Updated wire drawings 11/2020
-AE.1 Added P1450 12/2020
-AE.2 Added Evap Content 01/2021
-AE.3 Updated Pinpoint Test I 01/2021
-AF Added Pinpoint Test S 03/2021
-AG Minor updates 09/2021
-AH Updated Pinpoint Test S 09/2021
-AI Updated Fuel Tank Removal

10/2021
-AJ  12/2021
-AK  04/2022

All Rights Reserved.





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ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual
6.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual
Propane Flare.................................. 12

 ........................... 12
 .................................. 12
PREPARATION FOR FUEL SYSTEM SERVICE .............. 12
 ........................... 12
................ 13
 .................... 14
 .................. 15
 ..................... 15
 ................... 16
FUEL SYSTEM SERVICE COMPONENTS AND PROCEDURES. 16
 .............. 17
Tank Cover Plate ............................... 18
Tank Bleeder Valve/Liquid Level Gauge ............ 18
Tank Supply Valve Assembly ..................... 19
Removal ...................................... 19
Tank Return Valve Assembly ..................... 20
..... 21
Tank Pressure Relief Valve (PRV) .................. 22
Fill Filter ...................................... 22
Supply Line Filter ............................... 23
 ............................. 23
Fuel Pump Assembly ............................ 24
Fuel Level Sender (FLS) Twinsight ................. 25
Gateway Module ............................... 27
Solenoid Coils ................................. 27
Fuel Rail Pressure Control Module (FRPCM) and FRPCM
Bleed Port..................................... 28
Fuel Rails...................................... 29
TORQUE CHART .................................... 30
SYSTEM MAINTENANCE ............................. 31
 ................... 31
Fuel Tank...................................... 31
FAQs ............................................. 31
 ....................................... 31
Fueling ....................................... 31
 ....................................... 32
 .................................. 32
Refueling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
 ................................... 32
...................... 32
 ....................... 33
MAINTENANCE AND SPECIFICATIONS.................. 34
 .... 34
FOREWARD ....................................... 1
CONTACTING ROUSH CLEANTECH .................... 1
 .................................... 1
For Training.................................... 1
 ................................ 1
 .............. 1
UPDATES.......................................... 1
REFERENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
 ...................... 2
............................... 2
IMPORTANT SAFETY INFORMATION ................... 3
 ................................. 3
Propane Flammability .......................... 3
Propane Vapor ................................. 3
Fuel Lines ..................................... 3
NFPA 58 Guidelines ............................. 3
 ....................................... 3
IMPORTANT WARNINGS............................. 3
Training....................................... 3
.................. 3
Tank Filling .................................... 3
Working on Tank Components .................... 3
 .............................. 3
INTRODUCTION .................................... 4
Propane ...................................... 4
 ... 4
 ...................................... 4
 .............. 4
SAFETY INFORMATION .............................. 4
 ................ 5
 ............. 5
................ 5
 .................................... 5
General Propane Refueling. . . . . . . . . . . . . . . . . . . . . . . 5
......................... 6
 ....................... 7
 ...... 7
Requirements to Start .......................... 7
Blue Bird Vision Propane Fuel Rails ................ 8
Blue Bird Vision Propane Fuel Tanks ............... 9
 .. 10
.... 11
SPECIAL TOOLS .................................... 12
.. 12
 .................... 12

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ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual
6.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual
 ...................... 34
.................................. 34
 .................................. 34
 ............................. 35
...................... 35
 ............... 36
 ............... 37
 ............... 38
DIAGNOSTIC TROUBLE CODES ........................ 39
 ............... 39
............... 39
DIAGNOSTIC TROUBLE CODES EXPLAINED.............. 40
 . 40
...... 40
... 40


 ...................................... 41
 41
P0148 — Fuel Delivery Error ..................... 41

................................... 41

................................... 42

 .................................. 42
 ... 42
 .. 43
 ....... 43
 .......... 43
 ...... 43
...... 44

Low .......................................... 44

High.......................................... 44

 ........................ 45

Low .......................................... 45

High.......................................... 45

....................... 46

Open ......................................... 46

 .................................. 46

 .................................. 46
................................ 47
..... 47
 . 47
 .......... 48

 .................................. 48
 ... 48
... 49

 ................................... 49
 ..... 49
. 50

 .................................. 50
 ......... 50
 ......... 50
 ....... 51
 ........... 51
 ...... 51
 ....... 51
 52
 52

 ................................... 52

 ......................................... 52
 .............. 53
....... 53

 ...................................... 53
 ............. 54
........... 54

Module ....................................... 54

Module A/B ................................... 55

 .......... 55

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ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual
6.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual

.......... 55
DIAGNOSTICS AND PINPOINT TESTS ................... 56
Pinpoint Test A: No Fill .......................... 57
Pinpoint Test B: Slow Fill ......................... 58
Pinpoint Test C: OPD Test ........................ 59
Pinpoint Test D: Engine Does Not Crank ............ 60
 ............ 61

Fuel Pressure Drop ............................. 63
 ...... 65
 ......... 66
Pinpoint Test I: Fuel System Fails to Bleed........... 67
....... 68
............ 69
Pinpoint Test L: Fuel Rail Pressure Control Module
 ........................ 70

 ........................... 71

 ........................................ 72

 ................................. 73
 ..... 74

 ........................................ 75

..................................... 77
 .... 79
 ................................... 81
................... 81
Tank Temperature Pressure Chart ................. 81
 .............................. 82

ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual, 6.8L Ford Engine
16.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual
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FOREWARD





Propane operators guide for the year of your bus. For base engine or

CONTACTING ROUSH CLEANTECH
For Service



For Training


www.

the main page.
For Publicaons




Team at .
For the ROUSH Diagnosc Tool (RDT)


ROUSH.
UPDATES


• 

• 
• 
• 

• 



ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual, 6.8L Ford Engine
26.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual
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Acronym or
Abbreviaon Descripon
MIL 
MY Model Year
NFPA 
NFPA 58 Liquid Petroleum Gas Code from the NFPA
Nm Newton Meter
OASIS 
OBD 
OEM 
OPD 
OTIS 
PCM Powertrain Control Module
PERC 
PID 
PRV Pressure Relief Valve
RDT 
VECI 
WC 
REFERENCE
Commonly Used Acronyms
Acronym or
Abbreviaon Descripon
BS Bleed Solenoid
CAN Controller Area Network
DTC 
DTE 
ECU Engine Control Unit
EFPR 
EGR 
EPA 
EVAP 
FPCM Fuel Pump Control Module
FCS Flow Control Solenoid
FPTS Fuel Pressure and Temperature Sensor
FRP Fuel Rail Pressure
FRPCM Fuel Rail Pressure Control Module
GWM Gateway Module
IPTS Integrated Pressure Temperature Sensor
KOEO 
KOER Key On Engine Running
LPA Liquid Petroleum Autogas
Engine Direcons

Engine Front
Engine Rear
Engine Le�
Engine Right

ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual, 6.8L Ford Engine
36.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual
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____________________________________________________________________________________________________________
IMPORTANT WARNINGS
Training




and/or death.
Service and System Modicaon












Tank Filling


Working on Tank Components

important to verify that there is not any pressure remaining inside

always be the one to verify it is empty and this should be done right


  before removing or

Tank Maintenance





IMPORTANT SAFETY INFORMATION
Propane Facts



air it will immediately seek the lowest point in the area where it
is released.
Propane Flammability





when working with propane. Failure to heed this danger may result

Propane Vapor







Fuel Lines





NFPA 58 Guidelines
Always follow all NFPA 58 guidelines. When working on the propane




Baery




death.
ALERT MESSAGES


will appear in this manual to remind all personnel working with or around propane of the safety risks of working with propane.

ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual, 6.8L Ford Engine
46.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual
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


















level the dash fuel gauge will read full. The pressure in the tank is



Maintenance








ROUSH CleanTech Customer Success










SAFETY INFORMATION






INTRODUCTION


propane fuel system installed on the Ford 6.8L V10 engine. For any


Propane






















observed when working on or around propane-powered equipment
or storage tanks.




web address is .
ROUSH CleanTech Propane Fuel System Overview

to the engine in a vapor
liquid propane into the engine.













ROUSH CleanTech Gen 4 Blue Bird Vision Propane
Service and Diagnosc Manual, 6.8L Ford Engine
56.8L Gen 4 Blue Bird Vision Propane Service and Diagnosc Manual
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


Fill Staons
Propane is readily available anywhere in the United States. To

.




Note:



General Propane Refueling

therefore it is not required that the liquid level gauge or bleeder


required that the nozzle output pressure be at least 25 psi higher


• 
• 


If the door is not closed and locked to acvate the
switch (when equipped), the Mulplex will not send
the signal to the PCM to being the start sequence.
• 
• 

• 
• 

• 

• 


Propane Tank Refueling Procedure

 

 




 

tank.
Installaon, Garaging, and Training
Chapters 11 and 12 of NFPA 58 applies to engine fuel systems









Purging and Venng (Tanks and Lines)




General Propane Tank Informaon


















