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 > 2ND Generation Dodge Ram 1994 to 2001 Dodge Ram Trucks > Powertrain > Cummins Diesel Specific Topics


Notices


Latest Vendor News
AutoAnything
Addictive Desert Designs!
Bayou Goat Mounts

Reply
 
Thread Tools
  #1  
Old 01-03-2011, 11:59 PM
eye4mud eye4mud is offline
Dodge Ram Forum Newcomer
 
Join Date: Jan 2011
Age: 37
Posts: 1
Gender: Male
Vehicle: 1999 Dodge Ram 3500
Engine: 1999-2000 359ci (5.9L) Cummins ISB 24-Valve Diesel I6 235hp 460lb/ft (manual)
Rep Power: 0
Rep:10
eye4mud is on a distinguished road
Default Engine surging while holding at a constant speed need help!

I have a 19999 Dodge Ram 3500 Dually 5.9l Diesel. The engine is stock no mods, all factory original intake and exhaust with an exhaust brake.

First my cruise control stopped working and now while trying to hold a constant speed I get intermittant surging, the engine will drop in rpm's and and then surge back above where it was before and then return to the speed I was holding it at. Originally only did this at lower speeds, now is becoming more frequent at higher speeds.

Any ideas? I am new to Diesel's so I am lost... EGR Valve? Throttle position sensor bad? Fuel filter clogged?

Any help would be appreciated.
Reply With Quote
Sponsored links
  #2  
Old 01-04-2011, 12:43 PM
CdnoilRAM's Avatar
CdnoilRAM CdnoilRAM is offline
I push the skinny pedal


 
Join Date: Jul 2009
Location: Calgary, AB, CA
Age: 30
Posts: 17,125
Gender: Male
Vehicle: 2009 Blown 349 Hemi
Trim Level: Sport - Modified
Color: Brilliant Black/Snake Skin Green
Engine: 2009-2012 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 20
Rep:3269
CdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond reputeCdnoilRAM has a reputation beyond repute
Default

I would look at the fuel system first, it's the most likely cause of the surging. If it's getting progressively worse, then the fuel filter is most likely gumming up and it's not flowing as much fuel any more. You can change out the fuel filter and see how that goes. If you want to make a real difference, you could also install a FASS or Snow fuel separator system to improve the fuel going into the chambers.
__________________
Sponsored by Bully's Performance
Green Mamba '09 Ram 1500 QCRB 4x4 Sport - dropped, blown, and bottle fed
Kurtis
Reply With Quote
  #3  
Old 02-10-2011, 12:30 PM
wbodine's Avatar
wbodine wbodine is offline
Dodge Ram Forum Newcomer
 
Join Date: Jan 2011
Location: West Texas
Age: 41
Posts: 22
Gender: Male
Vehicle: 2011 Dodge Ram Outdoorsman
Trim Level: Outdoorsman
Color: Green & Gray
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:10
wbodine is on a distinguished road
Default

Either one of two things the APPS switch or the VP-44. Sorry no good news. Still check the fuel filter first. Of the two I would guess the APPS. I have a good source for them the Dodge house gets $400 for them...
__________________
Bodine
Reply With Quote
  #4  
Old 03-18-2011, 03:27 AM
DieselD24 DieselD24 is offline
Dodge Ram Forum Junior Member
 
Join Date: Dec 2010
Location: Denver, CO
Posts: 34
Gender: Male
Vehicle: 2001 Dodge Ram
Trim Level: SLT
Color: White
Engine: 2001-2003 359ci (5.9L) Cummins ISB 24-Valve Diesel I6 235hp 460lb/ft (manual and auto)
Rep Power: 0
Rep:10
DieselD24 is on a distinguished road
Default

I had the same exact symptoms. Cycle the ignition on and off three times and look at your odometer display. You should get either of the following codes. P1693, P0121, 0122, or P0123. If you get any of the following codes, it is a defective APPS. Local parts store has them for $300, I know of a site that has em' for $160. If you need one, let me know.

Good luck.
Reply With Quote
  #5  
Old 06-15-2011, 04:55 PM
kenaustin9 kenaustin9 is offline
Dodge Ram Forum Newcomer
 
Join Date: May 2011
Location: Washington
Posts: 4
Gender: Male
Vehicle: 2001 ram 2500 quad cummins
Trim Level: SLT
Color: Garnet Red
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 0
Rep:10
kenaustin9 is on a distinguished road
Default

Quote:
Originally Posted by wbodine View Post
Either one of two things the APPS switch or the VP-44. Sorry no good news. Still check the fuel filter first. Of the two I would guess the APPS. I have a good source for them the Dodge house gets $400 for them...

I did the code check and got P PCU, P1602, P1693. So the 1602 means a APPS switch. I would appreciate your source info.

Thanks,

Kenaustin9
Reply With Quote
  #6  
Old 06-17-2011, 06:30 PM
DieselD24 DieselD24 is offline
Dodge Ram Forum Junior Member
 
Join Date: Dec 2010
Location: Denver, CO
Posts: 34
Gender: Male
Vehicle: 2001 Dodge Ram
Trim Level: SLT
Color: White
Engine: 2001-2003 359ci (5.9L) Cummins ISB 24-Valve Diesel I6 235hp 460lb/ft (manual and auto)
Rep Power: 0
Rep:10
DieselD24 is on a distinguished road
Default

Google Timbo Apps. He sells them for $160 online.
Reply With Quote
  #7  
Old 06-17-2011, 06:37 PM
DieselD24 DieselD24 is offline
Dodge Ram Forum Junior Member
 
Join Date: Dec 2010
Location: Denver, CO
Posts: 34
Gender: Male
Vehicle: 2001 Dodge Ram
Trim Level: SLT
Color: White
Engine: 2001-2003 359ci (5.9L) Cummins ISB 24-Valve Diesel I6 235hp 460lb/ft (manual and auto)
Rep Power: 0
Rep:10
DieselD24 is on a distinguished road
Default

Any by the way, there isn't a 1602 DTC stored in the 24 valve Cummins. There is however, a 1693, and what that means is when you get a 1693 it's usually a companion code stored in the PCM. So, you will have 1693 along with another code, but 1602 is not a 24V code. APPS codes as state before are 0121, 0122, and 0123. If you get either one, time for new APPS.
Reply With Quote
  #8  
Old 06-24-2011, 05:11 PM
kenaustin9 kenaustin9 is offline
Dodge Ram Forum Newcomer
 
Join Date: May 2011
Location: Washington
Posts: 4
Gender: Male
Vehicle: 2001 ram 2500 quad cummins
Trim Level: SLT
Color: Garnet Red
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 0
Rep:10
kenaustin9 is on a distinguished road
Default APPS and codes

"Any by the way, there isn't a 1602 DTC stored in the 24 valve Cummins. There is however, a 1693, and what that means is when you get a 1693 it's usually a companion code stored in the PCM. So, you will have 1693 along with another code, but 1602 is not a 24V code. APPS codes as state before are 0121, 0122, and 0123. If you get either one, time for new APPS."

I rechecked, and I must have read the code without my glasses or something. the codes are:
P1682 and P1693. Do you know what the P1682 indicates?

The code references are causing me to scratch my head a bit. I haven't been able to find code lists on the forum, or much about retrieving them, where they are stored, or companion codes stored in the PCM, etc. Is there a reference around that explains all that stuff?

Regarding the companion code, does it mean I need to get a code reader to find what is in the PCM?

Thanks for your patience. I suspect that the APPS is the issue from reading other threads about these symptoms, but it would be nice to know what the codes show before I order a new one. I'll check out "Timbo APPS". Thanks for the response.

Ken
Reply With Quote
  #9  
Old 06-28-2011, 08:51 PM
wbodine's Avatar
wbodine wbodine is offline
Dodge Ram Forum Newcomer
 
Join Date: Jan 2011
Location: West Texas
Age: 41
Posts: 22
Gender: Male
Vehicle: 2011 Dodge Ram Outdoorsman
Trim Level: Outdoorsman
Color: Green & Gray
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:10
wbodine is on a distinguished road
Default

Timbo APPS this is good stuff...
__________________
Bodine
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 06:04 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