Recent content by Alaxgoaly8

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    Engine Revs up and down at 35 to 40 mph

    I tried tow/haul mode and using 3 instead of D... While I didn't see the exact scenario, it was similar. I'm going to try both again to try and recreate the scenarios again. One thing I haven't looked at is the exhaust manifold bolts. If the bolts are loose or missing or broken, would the...
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    Engine Revs up and down at 35 to 40 mph

    thank you for the information. If I keep it in 3rd and it doesn't do the same thing, then you're thinking it's the TCC lockup issue?
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    Engine Revs up and down at 35 to 40 mph

    I'll try both. I'll try driving it in 3 and with tow/haul mode on... question with T/H... do I press the button after it shifts into 4th or right at start up? I'm familiar with T/H from my RV on my Ford V10, but never used it on this truck.
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    Engine Revs up and down at 35 to 40 mph

    I appreciate all the responses... Going to try and answer a few of the questions including the one quoted... 1. I can accelerate out of the problem. It doesn't happen when trying to hold 55 or 65 on the highway for example. 2. Other than a sheet of paper about a warranty on a certified gm...
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    Engine Revs up and down at 35 to 40 mph

    Here's my scenario. 2004 GMC Yukon Denali 6.0 AWD... I bought this back in February with 177k miles and noticed it had some issues (no big deal. Knew that when I bought it). Had a troublesome P0300 but we seemed to have calmed that down to the point where the CEL hasn't come back on and the...
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    Repaint Olympic White

    I've got the same color on my 04 denali and you might want to try doing a buff on it first cause it just might be your clearcoat with the issues. If you can get away with a scuff and layers of clear, you may not have to mess with the color. The other thing is... It's an older truck like mine...
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    Moving 2nd row of seats back

    Nevermind... Just realized it wouldn't work with the rear bolts, but I wonder if you could use that for the front bolts and then maybe drill a hole in the seat frame to line up with the back bolt. I'll have to take a look.
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    Moving 2nd row of seats back

    I know one of the rules in a forum is to not revive a 15 year old thread, but was thinking if a specially made metal rectangle piece that allowed for a hole in one end to slide over the original bolt and a threaded bolt the same as the original size on the other end of the rectangle (could be 1...
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