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cartech, ASE Certified Technician
Category: Car
Satisfied Customers: 3332
Experience:  25 year as shop owner and ase master tech also certified body tech
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o2 sensor..egr valve and removed cat convertor still doing same thing

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driving car and heard a small pop sound and car lost pick up and starting making putting sounds. have replaced o2 sensor , egr valve and removed cat convertor still doing same thing. help!
did you check the plugs and wires we have seen the plugs come out of the cylinders which will cause a popping sound and lose of power
Customer: replied 7 years ago.
plugs and wires have been checked and are firmly in place and ok. what about IAC or something on that line?
i think i would run a compression test
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