Menu
News
Latest News
Desert Racing
Rally Raid
Short Course Racing
Product Reviews
Featured Vehicles
Shop Tours
Story Time
Press Releases
Forum
New posts
Search forums
Classifieds
Video
Calendar
Store
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forum
membership
has its advantages....
Forum
Off-Road Racing Community
Shop
Shop - Engine
4.0 Issue
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Slippery P" data-source="post: 893422" data-attributes="member: 13305"><p>Dont go spending all your money on a fuel pump yet. Its possible that the lower intake gasket did not seal. Its a better bet that one of the upper plenum o-rings rolled when you installed the upper plenum. If your truck has egr, where the egr tube enters the upper plenum that o-ring can roll or become pinched very easy when installing the egr tube. I would suspect a vaccum leak before anything. If you can get your hands on a scan tool monitor the O2 sensor pids for both banks while spraying carb cleaner around the upper and lower intake gaskets, when they peg rich (.90volts) their is your vaccum leak.</p></blockquote><p></p>
[QUOTE="Slippery P, post: 893422, member: 13305"] Dont go spending all your money on a fuel pump yet. Its possible that the lower intake gasket did not seal. Its a better bet that one of the upper plenum o-rings rolled when you installed the upper plenum. If your truck has egr, where the egr tube enters the upper plenum that o-ring can roll or become pinched very easy when installing the egr tube. I would suspect a vaccum leak before anything. If you can get your hands on a scan tool monitor the O2 sensor pids for both banks while spraying carb cleaner around the upper and lower intake gaskets, when they peg rich (.90volts) their is your vaccum leak. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Off-Road Racing Community
Shop
Shop - Engine
4.0 Issue
.
Top