Question about 1994 Buick Park Avenue

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Problem with idel and check engine light goes on stays in 2nd gere goes off everything normal driving me nuts.

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There might be a vacuum line off either at the carburetor or at the transmission. Or the line itself might be broken or cracked. Also at the transmission or somewhere on that line is a transmission shift modulator valve which could be defective.

Posted on Mar 11, 2011

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Posted on Jan 02, 2017

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Hi I did overhaul on engine getz but my engine sounds loud is it normal and my ideling goes high some times that my steering vibrates


What you did wrong in putting it back together is something only you would know. Recheck everything. Also for the idle problem clean the throttle body and the idle speed control valve.

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Well according to the owners manual, anything from low up to the last mark is normal. I think they mean anything from the low mark up half way is normal for idle.
If the gauge stays near L at idle and while driving, you could have low oil pressure or a gauge problem. A mechanic would check pressure with a mechanical gauge.
Normal for most engines is around 25-40 psi at idle and 30-60 psi when driving.

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I have a 1995 silverado after start up , it idels high, engine light comes on, putting it in gear, it jerks, but if I put in back in park while still idel high and tap gas it will go down to normal, then...


May be throttle position sensor. The engine light comes on because of afault signal from one of the sensors. Going out is temporary. After 3 events, the ligh will come on again. It needs to be scanned to find the problem sensor. more than likely the TPS. Good luck

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03 gmc envoy with 5.3 140000 miles. Oil pressure reading fluxuates between 0 and 40. When problem first started pressure read 80. When vehicle was new it stayed at midpoint (40) vehicle has plenty of oil....


There may be a loose wire or the gauge or sending unit may be going bad. The first thing I would do is to hook up a temporary oil pressure gauge, not using the old one at all. With this watch gauge while driving and see what readings you get. If the readings still jump around you have a pump that is getting weak and failing, If that is the case the pump should be replaced, but with high milage you may consider rebuilding the entire engine. If the readings stay normal start checking for a loose wire at gauge or sender. Then check sender, then gauge and replace as needed.

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I have a 55 Chevy with new crate engine and a Desert cooler radiator which i had flushed out before instalation everything else is new with the cooling system the engine has a electric fan from a dodge...


The next time you start your car wait until the temp gage starts to go up past the normal level and turn your heat on full blast. if the temp starts to go down and stayes there while driving than you need to get a thermaostat that opens well before the one you have. also check to make sure you have filled you raditor and overflow tank but please remember that you can only fill your over flow tank to a certain spot when the engine is cold(before you start it) and when it is hot (when it has been running).
If this does not fix the problem please let me know and i will assist you in another direction.

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