Question about 1997 Pontiac Sunfire

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Car Shakes whlie idle/driveing

While the car is running idle it shakes and when in gear it shakes but not as bad. while driveing it will shake but not as bad it will have moments when it gets worse. Ive tryed changing the spark plugs, plug wires, injectors. had the car inspected and replaced the tyrod's and some other parts. the mechanics couldnt figure out why its doing this. also changed the air filter. the engine while running sounds like metal scraping. sounds kinda like in the christmas movies when santa's sleigh appears. i had thought it was something in the tranny but if that was the case i didnt think it would do this while sitting. thanks for reading. any help would be appreciated.

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Check PCV valve operation and associated connection hoses for leaks, or hose degradation due oil softening,
Check air intake system hoses and connections for air leaks .

Posted on Sep 06, 2009

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