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Thread: Surging 2005 GT

  1. #21
    Super Moderator Stephen06GT's Avatar
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    Any vacuum leaks?

  2. #22
    CanadianDrPhil
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    I dont think so. If it was it would surge most of the time.

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  3. #23
    Member Ray721's Avatar
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    It's worth a look. Check all your hoses and fittings. I had a small vac leak with my JLT catch can. Caused the car to run funny. Pulled it off and everything is fine.
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  4. #24
    Super Moderator Scrape's Avatar
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    Tp sensor perhaps? That is what it sounds like to me.

  5. #25
    CanadianDrPhil
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    Checked all my hoses and lines and everything seems fine. Car surges more when cold but can barely feel it when its warmed up. When I push the clutch in and keep my foot stationary on the gas while it surges the car runs fine. Also noticed that when I start my car and still have the clutch pedal down the engine sounds fine and I can hear the injectors. But when i let off the pedal I can hear a tiny knock sound. Like what you heard Rick. But it stops when I push the pedal back down.

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  6. #26
    CanadianDrPhil
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    Any ideas?

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  7. #27
    Admin ZR's Avatar
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    On all season driven rides, have seen a couple where corrosion on the aluminum head is severe enough to actually lift the intake manifold just a smidge and cause an off n on vac leak.

  8. #28
    Club Supporter Uncle Buck's Avatar
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    ^^ how the heck did you find that? You you should write a book about these cars someday!

  9. #29
    Admin ZR's Avatar
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    On one, got lucky and saw the gasket was not making full contact after removing intake to clean high carbon build up inside. Other one, could see appreciable corrosion at the edge of the intake and rightly assumed it was lifting off the gasket a tic.
    Cars are coming up on 10 yrs old, makes sense corrosion will happen and gaskets can start failing.

  10. #30
    CanadianDrPhil
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    Hmm ill have to take a look. Thats probably where the ticking is from too as I hear it under the intake. Ill check it when I do my valve covers this weekend.

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