Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

injector problem

Thread Tools
 
Search this Thread
 
  #1  
Old 12-07-2009, 10:29 AM
rlncoal57's Avatar
Diesel Fan
Thread Starter
Join Date: Jul 2009
Location: middletown, DE
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default injector problem

i have a 03 lb7 with 110,000 miles on it. truck still runs strong but smokes at idel. scowering the fourms i now know that i have an injector problem... i checked my oil today ad it smells badley like diesel fuel.. can this be good for the barings in the lower end? after i change injectors am i going to have to worry about other problems in the future due to this? any advice will help thanks again
 
  #2  
Old 12-07-2009, 11:58 AM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

get that to the dealer asap. the diesel fuel is not good for the bearings.

there is still a 7year/200kmile warrenty for the injectors and you should be coverd
 
  #3  
Old 12-07-2009, 01:44 PM
rlncoal57's Avatar
Diesel Fan
Thread Starter
Join Date: Jul 2009
Location: middletown, DE
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default

kewll thanks ive heard from a couple people about the 200,000 mile warente but wasent posative ive got an appt. for the truck to go in this friday. do u think i should take off my edge n cold air intake?
 
  #4  
Old 12-07-2009, 02:44 PM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

take off the edge, they didnt give me any problems with my CAI or exhaust, but if u want to be on the safe side its only a 5 minute swap to switch back to stock
 
  #5  
Old 12-09-2009, 12:41 AM
Ballz04lb7's Avatar
Diesel Fan
Join Date: Nov 2009
Location: Paul, Idaho
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Default

i just got my injectors replaced an they do tests on your injectors an if it passes them you get them covered for free an if they see you had a chip on it they wont replace them
 
  #6  
Old 12-16-2009, 07:31 PM
rlncoal57's Avatar
Diesel Fan
Thread Starter
Join Date: Jul 2009
Location: middletown, DE
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default shes all fixed!

well its been about a week but just wanted to give yu guys an update... got all 8 injectors coverd under warente. also why they were in there they found 2 fuel lines that had cracks in them that would probaley explane why i kept loseing fuel presure!!!!! so they replaced it all... thanks again for the info and elp!!!!!
 
  #7  
Old 12-22-2009, 10:42 PM
skuzlb7's Avatar
Diesel Fan
Join Date: Feb 2009
Posts: 10
Likes: 0
Received 0 Likes on 0 Posts
Default

i just got my 03 lb7 back from the dealer, i took it in for the same problem - smoke at idle only when at operating temp though, they told me since I only have 1, maybe 2 injectors leaking from the nozzle it is not covered by the 7/200k warranty, they say the only way they warranty them is if they are leaking from the upper part of the injector body which causes fuel to enter the oil. I might wait a month, dump some diesel into my oil and take it in again. what do you guys think? my warranty is over in june.
 
  #8  
Old 12-22-2009, 11:29 PM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

diesel in the oil is usually a sure thing, have you tried other dealerships?
 
  #9  
Old 12-24-2009, 12:48 AM
DuramaxakaDTD's Avatar
Diesel Fan
Join Date: Oct 2009
Location: wisconsin
Posts: 92
Received 3 Likes on 3 Posts
Default

I just replaced my injectors which were not under warranty and it was a bitch! not really just takes too much time
 
  #10  
Old 12-24-2009, 03:32 AM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

tell me about it, done it about 5 times
 



All times are GMT -5. The time now is 08:48 PM.