No oil pressure at start up, 2001 Tahoe

[2006Tahoe2WD]

My 04 Z71 has 245k. These trucks last if you take care of them. I have had zero oil pressure issues since I put the O ring in. hope this thread eventually helps someone avoid a very expensive "rebuilt" just because a $3 oring goes bad.

Again, good write up. I'm watching my oil pressure and it is now 32psi at cold start and rev it up without change. So I think I have the O-ring issue.

 

[2006Tahoe2WD]

Again, good write up. I'm watching my oil pressure and it is now 32psi at cold start and rev it up without change. So I think I have the O-ring issue.

I think the issue is verified. The mechanic overfilled the oil about 2/3 quart? The pressure went up from 26 to 32 cold start. I read somewhere about testing the O-ring by overfilling and cold starting with the rear end up in the air. Yesterday (with the overfilled oil) I coldish started on a steep downhill driveway and the pressure went right to 40-45. I think this confirms that I have a pick-up tube O-ring that is not good.

 

[nonickatall]

So swap it, it's not a big deal. I did it myself. When you do it swap as well the pressure relief valve which also can make trouble and is accessible when the oil pan is down.

 

[nonickatall]

Here a small description...

No oil pressure at start up, 2001 Tahoe

What other "while-you-are-in-there" items should also be done?

www.tahoeyukonforum.com

 

[2006Tahoe2WD]

Here a small description...

No oil pressure at start up, 2001 Tahoe

What other "while-you-are-in-there" items should also be done?

www.tahoeyukonforum.com

Yes, I think I'm going to have it changed out. I probably will not do it myself - years ago I would DIY when I had a spare car. Thanks for the while-you-are-in-there info.