Problems with 6.9L diesel 86 f-250 PLEASE HELP

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Mar 12, 2023 | 09:28 PM

#16

Larry1#

Mountain Pass

Joined: Feb 2022

Posts: 102

Likes: 14

Quote:

Originally Posted by tjc transport

he only made 4 posts 14 years ago.
your issue is classic air intrusion due to bad o rings in the fuel return caps.
a return line kit should solve the problem.

Thanks! I'll install a return line kit.

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