Engine/Transmission (1994 - 1998) Fuel bubbles = rough running

[vssman]

Recently, my truck has started to run a little rough like it has a slight miss. I thought it was a bad injector, so to determine which one it was I loosened each line one at a time with the truck running. Well what do you know - bubbles. I did a quick search and looked at the service manual. I don't have any leaks of diesel fuel odors. I will be checking for cracks in the line, etc... Any other ideas? I don't have any specialized tooling (like a high pressure fuel pressure gauge or adapters, etc... ). No recent works has been done on the fuel system...



TIA

Paul

 

[Midnite]

From what I've read, small cracks in rubber fuel lines can let in air without leaking fuel.



Hopefully someone with more experience than I can confirm that one though... .



Mike