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Stuck valve?? Exhaust is pulling backwards

3982 Views 16 Replies 6 Participants Last post by  Chief2Horses
What all makes the exhaust suck backwards.

I have no exhaust leaks. Im figuring a stuck valve, but which side intake/exhaust?

Compression test was bad, but could it be anything else. All cylinders pumped up about the same.
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I would suggest running your codes as it might be something as simple as a temp sensor or a vacuum leak.

What have you done to the car or replaced?
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