24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
Sponsored by Trailer Plus

truck running weak please help!

Thread Tools
 
Search this Thread
 
  #11  
Old 02-17-2011, 08:29 AM
Whit's Avatar
Site Mascot
Join Date: Mar 2007
Location: Why-homing
Posts: 16,010
Received 940 Likes on 701 Posts
Default

if that is post turbo temps then this is very weird

yer not getting the fuel for some reason
 
  #12  
Old 02-17-2011, 08:37 AM
trevor_110's Avatar
Newbie
Thread Starter
Join Date: Feb 2011
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
Default

That is what i was thinking. This thing has been driving me nuts.

---AutoMerged DoublePost---

Lift pump is running great to. I called chip at blue chip and he said to run a clear line loop to look for air bubbles so i did and not a thing smooth as could be.
 

Last edited by trevor_110; 02-17-2011 at 08:37 AM. Reason: Automerged Doublepost
  #13  
Old 02-17-2011, 08:43 AM
Whit's Avatar
Site Mascot
Join Date: Mar 2007
Location: Why-homing
Posts: 16,010
Received 940 Likes on 701 Posts
Default

have you checked the MAP sensor
 
  #14  
Old 02-17-2011, 08:47 AM
Whit's Avatar
Site Mascot
Join Date: Mar 2007
Location: Why-homing
Posts: 16,010
Received 940 Likes on 701 Posts
Default

get an infered temp gun and with a cold motor start it up then scan all 6 exhaust ports at the manifold and monitor for a cold one.................this is tricks because of heat transfer thru conduction, I have acuratly told guys of dead injectors this way on the six point Oh no fords
 
  #15  
Old 02-17-2011, 08:47 AM
trevor_110's Avatar
Newbie
Thread Starter
Join Date: Feb 2011
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
Default

Yeah replaced it and put a new plug on the end as the old wires looked a little ruff at the connection. The cam sensor is the only one that i have yet to replace in this process.
 
  #16  
Old 02-17-2011, 08:50 AM
Whit's Avatar
Site Mascot
Join Date: Mar 2007
Location: Why-homing
Posts: 16,010
Received 940 Likes on 701 Posts
Default

the cam sensor is fine.............they eithr work or not, if it isnt then the truck wont run at all
 
  #17  
Old 02-17-2011, 08:53 AM
trevor_110's Avatar
Newbie
Thread Starter
Join Date: Feb 2011
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
Default

I will give it a try, but wouldnt it idle ruff or something if injectors were the cause or can they kinda hide sometimes?
 
  #18  
Old 02-17-2011, 09:20 AM
Whit's Avatar
Site Mascot
Join Date: Mar 2007
Location: Why-homing
Posts: 16,010
Received 940 Likes on 701 Posts
Default

I wonner if that check valve on the VP is spilling back to the tank....................they are cheap I would replace it
 
  #19  
Old 02-17-2011, 12:57 PM
trigger_3001's Avatar
Diesel Fan
Join Date: Feb 2011
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
Default

this might be a dumb question, but have you changed the fuel filter recently? also take it down to the dealership and have them run a cylinder cut out test to see if you can hear a difference between cylinders. could lead you to the trouble hole.
 
  #20  
Old 02-17-2011, 07:28 PM
trevor_110's Avatar
Newbie
Thread Starter
Join Date: Feb 2011
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
Default

Yeah filter was changed about a month ago.

---AutoMerged DoublePost---

Originally Posted by Whit
I wonner if that check valve on the VP is spilling back to the tank....................they are cheap I would replace it
By the check valve do you mean that press reg on the the side of the vp. Its a banjo style? Or is there another one?
 

Last edited by trevor_110; 02-17-2011 at 07:28 PM. Reason: Automerged Doublepost


Quick Reply: truck running weak please help!



All times are GMT -5. The time now is 12:22 PM.