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Car Surges When Idling Help Please!

This is a discussion on Car Surges When Idling Help Please! within the Camaro / SS forums, part of the Vehicle Specific category; I bought a 98 z28 about 6 months ago.The car ran excellent but a few weeks ago it started to ...

  1. #1
    I lika da Chevy's LETHALxLS1's Avatar
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    Car Surges When Idling Help Please!

    I bought a 98 z28 about 6 months ago.The car ran excellent but a few weeks ago it started to idle stragely. It idles ok a few secs then surges(like a rough idle) then back to normal then surges again over and over. It has perfect acceleration when I give it gas and runs fine but the idle problem is bugging me. The car has 66,000 miles on it and I know the guy never put plugs on it or wires.The check engine light isnt on either.Can anyone give me some advice on what to do about it/look for?? Has anyone of you had this problem?

    Thank you----mike

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    2nd-4th gen owner socmninja's Avatar
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    2000 Z28 M6

    Replace the plugs and wire, then inspect all vacuum lines for dry rot and cracks.

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    I lika da Chevy's LETHALxLS1's Avatar
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    Ill do those things first.thanks-mike

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    BLT4SPD
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    black (SS), red (57)
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    Also make sure that your air filter is clean and all of the throttle body crap is clean. I had a LT1 that did the same thing (idle surge) and all it needed was a air filter and the throttle body sprayed and cleaned.

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    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    Clean your maf while your at it

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    I lika da Chevy's LETHALxLS1's Avatar
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    I will do it. This site rules. I get so much good info. any time I have a problem. Sure do appreciate you help fellas---mike

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    surging

    I had a 95 Z28 that did that, it was either the mass air had slipped off slightly or the IAC needed cleaned.GOOD LUCK!

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    I lika da Chevy's LETHALxLS1's Avatar
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    Do I take the MAF off the car to clean it?

  9. #9
    We'll be back... GatorSS's Avatar
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    Yes, take it off to clean it. Use non-residue electrical cleaner. Clean the IAT sensor while you're at it. Also, change your fuel filter.

  10. #10
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    Info. is much appreciated. Thanks again---mike

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