*** Restricting New Posts to SD Premium Members ONLY *** (09 May 2025)

Just made a new account? Can't post? Click above.

Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

Fuel Rail

  • 1dmacho
  • 1dmacho's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
1 year 2 months ago #66422 by 1dmacho
Fuel Rail was created by 1dmacho
I have a 2007 Silverado Classic 1500 4.8L, replaced the injectors and #8 is leaking from the rail side. Removed and reseated. Still leaking. Should I just replace the rail or is there another way to stop the leak? 

Please Log in or Create an account to join the conversation.

  • Chad
  • Chad's Avatar
  • Offline
  • Moderator
  • Moderator
  • I am not a parts changer.
More
1 year 2 months ago #66437 by Chad
Replied by Chad on topic Fuel Rail
Have you done a close visual inspection of the injector, O-ring, and Rail cup? I would think that you should be able to see a defect that would allow leakage...a torn o-ring?,  a scratched/bent cup?, a cracked injector?

My aging eyes aren't what they used to be so I, sometimes, use an inspection camera for things like this.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)
The following user(s) said Thank You: Noah

Please Log in or Create an account to join the conversation.

  • Noah
  • Noah's Avatar
  • Offline
  • Moderator
  • Moderator
  • Give code definitions with numbers!
More
1 year 2 months ago #66443 by Noah
Replied by Noah on topic Fuel Rail
My first thought is rolled o-ring. I still do it from time to time.o. Injectors and end up with a leak. A little smear of oil to lube the injector o-ring usually prevents this.
"Ground cannot be checked with a 10mm socket"
The following user(s) said Thank You: Lupe

Please Log in or Create an account to join the conversation.

  • 1dmacho
  • 1dmacho's Avatar Topic Author
  • Offline
  • New Member
  • New Member
More
1 year 2 months ago #66446 by 1dmacho
Replied by 1dmacho on topic Fuel Rail
Yes. That is exactly what I did. The injectors were new so it kind of threw me. So I pulled them out again change the O rings on the leaking one, a little oil and that fixed the leak. Thanks.
The following user(s) said Thank You: Tyler

Please Log in or Create an account to join the conversation.

Time to create page: 0.313 seconds