Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
'99 - '06 GM Truck Modifications
Engine & Performance
2005 Z71 suburban low oil pressure
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="Turbo4whl" data-source="post: 16904" data-attributes="member: 6176"><p>Yes, start with what [USER=3427]@jhama78[/USER] stated. Check the actual pressure.</p><p></p><p>Then [USER=6173]@Evlutionz[/USER] is correct, common failure is the pickup tube "O" ring. This will cause a pump failure over time.</p><p></p><p>Here is why, when the "O" ring leaks and the engine is shut off, the oil will drain out of the pickup tube back to the pan. That means every cold start the pump needs to reprime. Normally this would only happen when you change the oil, (not too often). Since the "O" ring has failed, air leaks in and allows the oil to drain. Now many more starts where the pump needs to prime.</p><p></p><p>This applies to the LS engines only (4.8, 5.3 etc.) Not the 4.3 V6.</p></blockquote><p></p>
[QUOTE="Turbo4whl, post: 16904, member: 6176"] Yes, start with what [USER=3427]@jhama78[/USER] stated. Check the actual pressure. Then [USER=6173]@Evlutionz[/USER] is correct, common failure is the pickup tube "O" ring. This will cause a pump failure over time. Here is why, when the "O" ring leaks and the engine is shut off, the oil will drain out of the pickup tube back to the pan. That means every cold start the pump needs to reprime. Normally this would only happen when you change the oil, (not too often). Since the "O" ring has failed, air leaks in and allows the oil to drain. Now many more starts where the pump needs to prime. This applies to the LS engines only (4.8, 5.3 etc.) Not the 4.3 V6. [/QUOTE]
Verification
Post reply
Random media
Latest posts
Power Windows - 2004 2500hd Duramax
Latest: Shaggy
Tuesday at 2:20 PM
Interior
Members online
No members online now.
Forums
'99 - '06 GM Truck Modifications
Engine & Performance
2005 Z71 suburban low oil pressure
Top