oil presure droping

GMC
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COLT HANIE
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i have a 1992 olds cutlass supreme sl with a 3.4 v6 dohc, with 177000 miles . when i first start it, the oil presure is fine, after it warms up it falls to less than 30 on the gauge, also, when i let off the gas, the motor surges, but dosent die,(or it hasnt yet)so far i have just changed the oil. what do i need to do in order to fix it?
May 7, 2006 at 1:52 PM
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LOSONE
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A 3.4 with that many miles is on it's last legs. There have been hundreds of recalls on that engine, the worst in GM history. It really isn't rebuildable by 99% of mechanics because of the way the cams are set up. There are no marks and an expensive special tool is needed to set them up.

I would advise a little thicker oil untill it goes completely. A re-build would cost in the big buck arena.

As a professional mechanic, that is my advise. Good luck
May 7, 2006 at 2:12 PM