DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Help Zone - Dodge Ram Problems, Complaints, & Solutions - Maintenance & Re > 3RD Generation Dodge Ram 2002 to 2008 Dodge Ram Trucks > Powertrain > Cummins Diesel Specific Topics


Notices


Latest Vendor News
AutoAnything
Addictive Desert Designs!
United Radio
Bayou Goat Mounts

Reply
 
Thread Tools
  #1  
Old 06-09-2009, 01:29 PM
nachizzle nachizzle is offline
Dodge Ram Forum Newcomer
 
Join Date: Jun 2009
Age: 31
Posts: 4
Gender: Male
Vehicle: 2004 dodge ram
Trim Level: 3500
Rep Power: 0
Rep:10
nachizzle is on a distinguished road
Default dtc po148

anyone know what may have caused this code ot come up?? this code came up after the truck was running fine and all of a sudden stopped working. we towed it home and it looked lie it wasnt getting diesel. now the truck is running bt the codes is still there. by the way the truck is an 04 ram 3500 with the cummings turbo diesel motor.
Reply With Quote
Sponsored links
  #2  
Old 06-09-2009, 01:34 PM
boostjunkie1's Avatar
boostjunkie1 boostjunkie1 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2008
Location: Middle of NC
Age: 32
Posts: 522
Gender: Male
Vehicle: 2008 Hemi Ram
Trim Level: SLT
Color: White
Rep Power: 0
Rep:62
boostjunkie1 will become famous soon enough
Default

Quote:
Originally Posted by nachizzle View Post
anyone know what may have caused this code ot come up?? this code came up after the truck was running fine and all of a sudden stopped working. we towed it home and it looked lie it wasnt getting diesel. now the truck is running bt the codes is still there. by the way the truck is an 04 ram 3500 with the cummings turbo diesel motor.
I would replace my Fuel Filter First and then make sure that all of the fuel lines are not leaking. You need to make sure that the Injection Pump is still 100%........
GOOD LUCK:

P0148-HIGH PRESSURE COMMON RAIL (HPCR) CHECKSUM
For a complete wiring diagram Refer to Section 8W.

When Monitored:
While the engine is running.

Set Condition:
A deviation between the fuel pressure set point and the actual fuel pressure.

Possible Causes
OTHERS DTC'S PRESENT
FUEL LEAKS
FUEL CONTROL ACTUATOR
FUEL PRESSURE SENSOR
CASCADE OVERFLOW VALVE
CHECK VALVE DAMAGED OR BLOCKED
FUEL RETURN LINES OBSTRUCTION, DAMAGE, OR DEBRIS
LIFT PUMP FLOW
AIR IN FUEL SYSTEM
LEAKING FUEL INJECTORS OR HIGH PRESSURE CONNECTORS
PRESSURE LIMITING VALVE
HIGH PRESSURE FUEL PUMP
INTERMITTENT CONDITION


Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

Diagnostic Test
1. OTHERS DTC'S PRESENT

--------------------------------------------------------------------------------
With the scan tool, read DTCs.

Are any other DTC's present?

Yes
Repair other DTC's first.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).

No
Go To2



2. FUEL LEAKS

--------------------------------------------------------------------------------
Ensure that the fuel level is above 15% using the scan tool.
Visually inspect the low and high pressure side of the fuel system for fuel leaks or damaged components.

Do you have any fuel leaks or damaged components?

Yes
Repair the fuel leak.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

No
Go To3



3. FUEL CONTROL ACTUATOR

--------------------------------------------------------------------------------
Check for a mechanically stuck Fuel Control Actuator (FCA). Using the scan tool, actuate the fuel control actuator.

NOTE: The fuel control actuator will only click when cycled off..



Do you hear a click from the actuator when you cycle the actuator off with the scan tool?

Yes
Go To4

No
Replace the fuel Injector pump.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)



4. FUEL PRESSURE SENSOR

--------------------------------------------------------------------------------
Using the scan tool, monitor the fuel pressure reading from the fuel rail pressure sensor at idle and at 2000 RPM

Is the fuel rail pressure reading higher at 2000 RPM than at idle?

Yes
Go To5

No
Replace the fuel pressure sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)



5. HIGH FUEL PRESSURE

--------------------------------------------------------------------------------
Using the scan tool compare the fuel rail pressure set point with the actual fuel rail pressure.

Is the actual fuel rail pressure higher than the fuel rail pressure set point?

Yes
Go To6

No
Go To9



6. CASCADE OVERFLOW VALVE

--------------------------------------------------------------------------------
Perform the no trouble code test "*fuel pump return flow test" .(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

Did the fuel injection pump pass the test?

Yes
Go To7

No
Replace the Fuel pump.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)



7. CHECK VALVE DAMAGED OR BLOCKED

--------------------------------------------------------------------------------
Check the fuel drain line check valve in the rear of the cylinder head for signs of damage, blockage, or debris.

Is the check valve damaged or blocked?

Yes
Repair the cause of the damaged or blocked check valve or replace the valve.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

No
Go To8



8. FUEL RETURN LINE OBSTRUCTION, DAMAGED OR DEBRIS

--------------------------------------------------------------------------------
Check the fuel return lines for signs of obstruction, damage, or debris.

Are the fuel drain lines damaged or blocked?

Yes
Repair cause of high fuel drain line restriction.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

No
Go To9



9. LIFT PUMP FLOW

--------------------------------------------------------------------------------
Perform the no trouble code "*LIFT PUMP FLOW TEST". (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

Did the Lift pump pass the test?

Yes
Go To10

No
Replace the Lift Pump.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)



10. PRESSURE LIMITING VALVE

--------------------------------------------------------------------------------
Perform the no trouble code test "*PRESSURE LIMITING VALVE ON THE FUEL RAIL FOR INTERNAL LEAKS".

Did the pressure limiting valve pass the test procedure?

Yes
Go To11

No
Replace the Pressure Limiting Valve.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)



11. LEAKING FUEL INJECTORS OR HIGH PRESSURE CONNECTORS

--------------------------------------------------------------------------------
Perform the no trouble test "*INJECTOR RETURN FLOW TEST". (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

Are any Injectors leaking or high pressure connectors leaking?

Yes
Replace or repair the leaking fuel injectors or high pressure connectors.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

No
Go To12



12. HIGH PRESSURE FUEL PUMP

--------------------------------------------------------------------------------
Perform the no trouble code test "*HIGH PRESSURE FUEL PUMP PERFORMANCE TEST". (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

Did the fuel pump pass the high pressure fuel pump performance test?

Yes
Refer to the INTERMITTENT CONDITION Symptom (Diagnostic Procedure). (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

No
Replace the High pressure fuel pump.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
Reply With Quote
  #3  
Old 06-09-2009, 01:36 PM
nachizzle nachizzle is offline
Dodge Ram Forum Newcomer
 
Join Date: Jun 2009
Age: 31
Posts: 4
Gender: Male
Vehicle: 2004 dodge ram
Trim Level: 3500
Rep Power: 0
Rep:10
nachizzle is on a distinguished road
Default

thanx for the info will check the filter first and then go from there.
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 11:34 AM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum