2005 Chev 3500 HD with 6.0L Vortec gas engine Low oil pressure on start

Asked by Nov 26, 2015 at 09:24 AM about the 2005 Chevrolet Express G3500 Passenger Van Extended

Question type: Maintenance & Repair

160k engine on HD Bucket van so does lots of idling.
When cold the oil pressure is only just off the peg, then as it warms up the
pressure goes up to 20idle /40 at higher RPM. I idle it for quite a while until
the engine warms and the pressure starts to come up.
I have changed the sender but if anything it got worse slightly. I use
synthetic oil at factory 5w30 (Its v/cold here) .
Weird

Anyone seen this before?

5 Answers

47,755

Can you see any sludge in the engine at the oil fill plug? Could be a partially clogged oil pick up screen in the oil pan. As the oil warms it flows better allowing increased oil flow through a partially clogged screen, this would bring the oil pressure up. Just a theory as it could be something entirely different..

47,755

One other thing...was there a screen under the oil sender? See post #7 at the link.....http://www.yellowbullet.com/forum/showthread.php? t=593635

To be honest I didn't notice a screen at all. Will have to check this. Thanks for the heads up.

47,755

Not sure if there is a screen on the 2005 models, but the 2007 models have them.

65,305

If you are in extreme cold you may want to install an engine block heater or an oil pan heater.

Your Answer

Add photo

Related Questions

Express

Looking for a Used Express in your area?

CarGurus has 5,206 nationwide Express listings starting at $1,335.

ZIP:

Search Chevrolet Express Questions

Chevrolet Express Experts

#1 tenspeed
tenspeed
Reputation 260
#2 dizybren
dizybren
Reputation 230
#2 Sarai Sanchez
Sarai Sanchez
Reputation 230
View All

Related Models For Sale

Used Chevrolet Express Cargo
67 Great Deals out of 12,017 listings starting at $2,500
Used GMC Savana
4 Great Deals out of 1,280 listings starting at $2,000
Used Ford E-Series Wagon
26 Great Deals out of 1,318 listings starting at $1,500
Used Ford E-Series Cargo
73 Great Deals out of 3,080 listings starting at $2,200
Used Chevrolet Silverado 1500
1,773 Great Deals out of 181,200 listings starting at $250
Used Chevrolet Silverado 2500HD
299 Great Deals out of 28,182 listings starting at $2,495
Used Ford E-350
223 listings starting at $6,990
Used GMC Savana Cargo
28 Great Deals out of 4,191 listings starting at $2,295
Used Chevrolet Suburban
299 Great Deals out of 19,514 listings starting at $1,800
Used Chevrolet Tahoe
559 Great Deals out of 31,371 listings starting at $1,500

Used Cars For Sale

2017 Chevrolet Express For Sale
2,356 listings starting at $23,096
2016 Chevrolet Express For Sale
984 listings starting at $15,800
2015 Chevrolet Express For Sale
5 Great Deals out of 298 listings starting at $12,199
2014 Chevrolet Express For Sale
289 listings starting at $13,000
2013 Chevrolet Express For Sale
4 Great Deals out of 169 listings starting at $10,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.