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What is involved in repairing a leaking oil pan on a 1999 Grand Prix with 3.8L engine?

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βˆ™ 2015-07-17 17:44:49

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You have to have special fixtures to hold the engine while you are removing the pan. It is not an easy project. If you want to attempt it go to a parts store and get a shop manual on your car.

It has been a while since this answer had been posted but I came accross this post that talks about this issue and how to make a support from wood for a "do it yourself" kit.

http://www.clubgp.com/newforum/tm.asp?m=2546391&p=4&tmode=1&smode=1

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"G"

Did this not long ago with my 98 Grand Prix using a transverse engine support bar. It is still very difficult and requires disconnection of the forward (RH) engine mount and lifting of the engine slightly to get clearance. It is worth taking to a reputable mechanic to have done--not a good do-it-yourself job. Also, there is a GM S/B out on this now for installing the pan with Permatex "Right Stuff" type caulk sealant (not the silicone stuff). Simply installing a new integral windage tray/oil pan gasket probably won't fix your leak. GM just did the gasket twice for me while the car was under warranty and it never fixed it. By the time the S/B came out, my car was out of warranty and GM wouldn't help. If you go to a mechanic they should be able to get this stuff and use it--all NAPA stores carry it.

This of course also applies to 2000 GP's. I just found this out when my mechanic called to tell me it was $428 to replace a $1 gasket. I had no idea it was sitting on the engine cradle.

2015-07-17 17:44:49
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