Question about 1987 Chevrolet Blazer

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My 87 4x4 suburban is not running good . i haven't ran it in a few months. i have ben driving it for about 4 days now. today it started running crappy. when i give it gas in park it sounds good but when it is in drive it sounds like it is running out of gas i just filled it up two days ago. there is oil leaking out the back of the engine some were don't know yet but it is leaking more than normal it just started today. any suggestions. it drives in reverse fine

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It's an old question but I answer it in case you still have the truck.
The oil leak is probably the rear main seal and on 86 and up small block Chevy's it's a one piece seal and you'll need to pull the engine. That''s why some garages charge so much to fix it. You could try a bottle of stop leak but I doubt it would work on a bad leak. If you've checked the fuel filter and the gas isn't too stale to were it's gummed up the fuel system you will have to check the igniton system and buy a vacuum gauge to test for late ignition timing or a plugged catalytic converter.If there is a big difference between driving in drive vs reverse then you should also check the transmission, transfercase and hubs.

Posted on Feb 07, 2009

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