1991 Chevy Corsica popping

1991 CHEVROLET CORSICA
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REDNECK1969
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Engine Performance problem
1991 Chevy Corsica 6 cyl Front Wheel Drive Automatic

when i start my car it runs good for a few minutes and then starts to pop in the exaust but it isnt the motor missing already ruled that out could it be dirty injectors also it seems to shake when it starts to pop also it comes and goes so it doesnt do it constantly
Apr 2, 2010 at 5:18 PM
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HMAC300
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usually poppping relates to a bad spark plug/ cylinder like a bent pushrod or leaking valve. Try running some decarbonizer through the engine. you might also have an air leak in the exaust.
Apr 10, 2010 at 2:16 PM