Click here to visit LS1Tech
Click here to visit Performance Trucks
Click here to visit Mod Motor Tech
Click here to visit Modern Hemi

PerformanceTrucks.net Forums  

Go Back   PerformanceTrucks.net Forums > GENERAL MOTORS SPECIFIC FORUMS > GM Engine & Exhaust Performance
Sign in using an external account
Register Forgot Password?
Register Albums FAQ Members Calendar Search Today's Posts Mark Forums Read VendorsUsed CarsGarageStore TSBs & Recalls
Welcome to PerformanceTrucks.net Forums

Reply
 
LinkBack Thread Tools Search this Thread
Old 11-04-2010, 06:03 AM   #1
Trader Rating: 0
Registered User
 
Join Date: Nov 2010
Posts: 2
Default low oil pressure, gm 6.0

Have a 2004 6.0 in a GMC Yukon denalli. 113,000 miles.
Low oil pressure light came on, pressure is 0 at idle, 20 psi at 35 mph.
Had sensor checked out ok, changed oil and filter and pressure is better but still low.
checked with mechanical gauge and pressure is low.
Had shop pull pan and it appears # 2 cam bearing has moved approx. 1/8" back.
(see attached photo's), if this is the case would this cause low pressure?

Can cam be removed, new bearing installed and reassembled and be good to go?

Or is there more to repair?

Thanks for the help.
Attached Thumbnails
low oil pressure, gm 6.0-img00102-20101103-1601-jpg   low oil pressure, gm 6.0-img00103-20101103-1602-jpg  
FLASHhat is offline   Reply With Quote
Old 11-04-2010, 08:01 AM   #2
Trader Rating: 0
Launching!
 
Bow-Tie-Beast's Avatar
 
Join Date: Feb 2010
Location: South Carolina
Posts: 243
Default

I am not too sure about the repair, but if I was going through all the trouble to pull the cam, I would upgrade to a performance cam to replace it.
__________________

2007 Chevrolet Silverado K2500, Reg.cab, 4x4, LY6.0L, 6L90 trans, 3.73 gears, 353HP @5400RPM, 373 FTLBS @ 4400 RPM,
20"ultra rims 275/55/20 tires, much more to come.
Bow-Tie-Beast is offline   Reply With Quote
Old 11-04-2010, 11:24 AM   #3
Trader Rating: 19
PT's Slowest Truck

 
budhayes3's Avatar
 
Join Date: Apr 2004
Location: Hackensack, NJ
Posts: 17,872
Default

If the cam bearing shifted, it could definitely cause oil pressure problems, there's a good possibility that the oil feed hole to the cam journal is blocked also. Any noise? Did you try spinning the engine by hand to see if the bearing is spinning with the cam?
__________________
Billy
[SIGPIC][/SIGPIC]
[URL=http://www.cardomain.com/memberpage/648999]My CarDomain Page[/URL]
[FONT=Garamond]99 5.3 Z71 RC/SB - [COLOR="Blue"]FLT Level7 65E[/COLOR], [COLOR="Purple"]Circle-D Billet 258mm 2B Multi-Disc[/COLOR], Comp 206/212 515/520 114, LS6 Springs, Harland Sharp 1.7's, [COLOR="Red"]BlackBear 02 PCM[/COLOR], 02 Injectors, 160* stat, 05 E-fans, Nelson Harness, Volant CAI w/ Ram Air, StainlessWorks Headers and !Catted! Y-Pipe, DMH 3" E-Cutout, 18" Magnaflow dumped over axle, 3.73 G80, Dropped on Gibbs 20's [B]**H/C LQ9, 4.10's, and TruTrac eventually**[/B] [/FONT]
budhayes3 is offline   Reply With Quote
Old 11-04-2010, 11:24 AM
PerformanceTrucks
Ford F150




Paid Advertisement
Reply

Tags
2007, 60, bearing, cam, chevrolet, engine, gm, gmc, low, normal, oil, pressure, problems, trucks, yukon


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 06:57 AM.

 



Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2010, Crawlability, Inc.

PerformanceTrucks.net and InternetBrands, Inc. are not affiliated with the Ford Motor Company