Recent content by roygage

Ran a second ad in our local shopper to follow up on the oil filters plugging up. Will paste it here. A follow up on the problem with GM pickups plugging the oil filter and losing oil pressure. When last we spoke I threw AC Delco under the bus blaming their PF48E filter for the problem. Since...

Originally Posted By: Snagglefoot Originally Posted By: roygage One more log on the fire. I was reading in another forum that once the P0 521 for low oil pressure sets the gauge defaults to 0. If this is the case it would be a game changer. Would explain for why these trucks do not suffer any...

An interesting link with some good information. http://sandyblogs.com/techlink/?p=5000

One more log on the fire. I was reading in another forum that once the P0 521 for low oil pressure sets the gauge defaults to 0. If this is the case it would be a game changer. Would explain for why these trucks do not suffer any damage while running with 0 oil pressure, why the lifters do not...

OK. Still no firm resolution on just what is going on here. I am going to quote from GMs SI #PIP5276D. For your information an S.I. is not a service bulletin but rather an internal document to dealers from GMs engineering. I am always surprised by how little of a problem Gm will delve into with...

Originally Posted By: BigJakeChevy I had a similar oil pressure issue with my 07 classic 5.3. Cured it with a new oring on the oil pickup tube. Oil pressue is its a new engine and im at 445k kms original engine. Big Jake. As I earlier stated another tech mentioned a good way to determine if...

CR94, I did not see anything out of sorts with the by-pass valves on either trucks. As far as where all the carbon grit came from. I need to make the point that the filter was not loaded with it. Had someone brought the element to me and asked if I thought it was plugged I would have replied...

Snagglefoot. It is the filters. Replacing them resolves the issue. Yes, there can be other sources of oil pressure trouble on these motors.

Trav. Yes,they have trouble with the pickup tube 0--ring. I have not ran into one yet, or perhaps just have not recognized one. A fellow tech gave me a good tip on how to determine if the o-ring is letting air draw in. Add three quarts of oil, if the issue goes away it is because three quarts...

5.3/6.0 GM V8s plugging up oil filters, oil pressure dropping to near zero. Why doesn't the oil filter bypass valve open preventing the drop in oil pressure? Hello, Roy Gage from Estherville Iowa where I run a small automotive repair shop. I will tell you what I know, what I think I know, what...