Pirate4x4.Com : 4x4 and Off-Road Forum - View Single Post - Duramax losing fuel rail pressure problem ????
View Single Post
Old 04-29-2014, 01:03 PM   #65 (permalink)
Registered User
knaffie's Avatar
Join Date: May 2005
Member # 48084
Location: I live in a van down by the river
Posts: 4,420
Blog Entries: 1
Originally Posted by 79chevy39.5's View Post
so what kind of testing did they do? return rate? does the truck have any smoke, or a miss when it drops rail pressure? could indicate a sticking injector

ive never seen this on a duramax however I have had similar things happen on 5.2 Isuzu's
I didn't ask what they did. I assume they opened up the filter head, saw that the check ball and spring were missing, put them back, test drove it and observed no problem, then said it's done.

No smoke, no miss.
knaffie is offline   Reply With Quote