sounds like air leak - Diesel Bombers
Diesel Bombers
Go Back   Diesel Bombers > Dodge Cummins > 12 Valve 2nd Gen Dodge Cummins 94-98
Search


12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Hello, i have a 97 12valve it currently has 83000 miles, and im having what sounds like an air leaking or sucking issue. it sounds like its coming from the lift pump. it started at about 75000 miles thats when i completely deleted the fuel ... JOIN NOW TO REMOVE TRACER

sounds like air leak

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-23-2012, 12:30 PM
Newbie

   

Default sounds like air leak

Hello, i have a 97 12valve it currently has 83000 miles, and im having what sounds like an air leaking or sucking issue. it sounds like its coming from the lift pump. it started at about 75000 miles thats when i completely deleted the fuel preheater because i thought that was the problem and it wasnt. if i reach down and pinch off the fuel line with my fingers before the lift pump the noise will go away untill i let it go then itll come back. the fuel line comes from the tank directly to the lift pump. and the noise will go away everytime i mess with the fuel system, like when i replaced the fuel filter, but comes right back after i take it for a spin. it has no fuel plate, star wheel is all the way forward and the smoke screw is all the way in. the problem doesnt really seem to affect the power but i cant tell since its been getting progressivlly "worse". any help would greatly be appreciated. i really dont want to take it anywhere cus im low on funds and i like fixin my own stuff.
thanks mike
Reply With Quote
  #2  
Old 10-23-2012, 01:08 PM
daveO's Avatar
Diesel Bomber

ctd12v
   
View Member's FaceBook Profile

Default

From what I hear, the seal around the plunger on the lift pump can allow air to leak in.

daveO's Sig:OUTLAW DB
AMSOIL dealer
*98 Cummins 12v, QC, SB, 2wd, 17* timing, DTT 47RE, HTB2 62/14, ATS Arc-Flow intake, ATS Exhaust manifold, DDP DV's, DDP Stage 4 140hp injectors, 3k GSK, #0 Plate, AFC mods, 5" Aussie stacks, gauges.
Reply With Quote
  #3  
Old 10-24-2012, 09:14 AM
Newbie

   

Default

Alright ill check it out thank you
Reply With Quote
 
 
 
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search


 
All times are GMT -5. The time now is 12:58 PM.

Copyright And Legal Notice Links Of Interest

Diesel Bombers ® - All Content Protected Under Intellectual Property Rights Law of Registered Trademarks
Reg. No. 3,494,401 Cls. 100, 101 & 104 Under Int. Cl. 38
USE AT YOUR OWN RISK WE HOLD NO LIABILITY FOR ANY CONTENT RIGHT, WRONG OR INDIFFERENT

Protected by Copyscape Duplicate Content Check


Diesel Bombers Dodge Cummins Forum Section Diesel Bombers Ford Powerstroke Forum Section Diesel Bombers Chevy GMC Duramax Forum Section