Everything was working fine before I replaced everything. Does Chevy still sell the oil switch?

 

Step one should be check your pressure with a good hand help gage. It is possible that if you ran low oil pressure for a long time your pressure reliel valve got stuck. Possible but very unlikely.

Why replace a sensor if it is reporting right. You could reinstall your old sensor just to see what it gives you.

I installed a low miles 2002 3800 in my my 96. She has reads between 1/2 and 3/4 since day one. She is a little higher on cold mornings and a little lower on really hot day. I would expect the pressure to rise a little if I installed a new pump.

FYI factory gages are known for being inaccurate. That is why they do not put numbers on them.

 

I broke the old one that's why I replaced it. The oil pump and the valve are new. I redid everything in the timing cover when I had it off

 

Gorn, his pressure is fluctuating between 90 psi (3/4 mark) and 105 psi. Is it still safe to assume his pressure switch is reporting right?

 

I'm going to get a mechanical gauge today and check it out but I keep seeing that the duralast switch has a tendency to show higher than normal pressure

 

Just ran a mechanical gauge and it was running between 60-69 psi

 

That's more like it. Definitely get a different brand of switch then. I tend to stay away from AutoZone electrical parts.

 

Well I have to change the switch now. The stupid thing fell apart when I removed it to put on the mechanical gauge

 

Return it to the store as "defective" to get your money back.

 

I dont normally down talk my competitor's products but with Duralast parts they seem to be of a lower quality than my store's Master brands. If you are a big fan of AZ get their Standard brand or something from BWD. (Neihoff is BWD and just as good). I get quite a few customers in my store that have had bad luck with Duralast parts. Not all AZ parts are crap but it does seem that their store brand stuff is.

Massey