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    Engine Revving out of control

    Found the culprit. The intake manifold was broke where the bolt for the plastic cover mounted in the front. The plastic that the bolt screws into was snapped off in the past and then RTV'd in place. Got a pic attached. Hopefully it works
  2. B

    Engine Revving out of control

    Spoke with the dealer today. After a lot of driving and not being able to replicate my problem, they began to close it up. The mechanic noticed the plastic engine cover was unattached and just laying there. Haven't seen it yet but the intake manifold had a hole in it and someone had put RTV over...
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    Engine Revving out of control

    Once I noticed it on the interstate I did stomp on it so it would down shift and maybe break some trash loose but when u went back to cruising speed and right around 2000 rpm's, it continued to do the same thing. Reason I thought it might of been the throttle was b/c it did the same earlier in...
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    Engine Revving out of control

    Good Morning. I'm new on here and new to owning a '05 yukon denali. I've had it about 7 months now. I was driving it back from vacation and it seemed like the cruise control was set at 2000 rpm but it wasn't. We were coming up on stopped traffic on I-95 and as I was braking, it was not slowing...

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