Thread: Downshift Skips 3rd, Can't Flat-Foot Out of 2nd

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  1. #1 Downshift Skips 3rd, Can't Flat-Foot Out of 2nd 
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    Shot in the dark here. I've had an '04 GT1 for a few months, and she's tired (175K), but running OK. My biggest gripe is on the highway, flat or mild upward grade, and I want to build a liiiiittle speed, so I squeeeeze the gas pedal and then BAM, 5000 RPM in 2nd gear. Super annoying; my '02 Impala (3400, not 3800) didn't do that. Same behavior with cruise control trying to hold a grade.

    Goofing off, I decided to see how far 2nd would go, so I went pedal to the 'wall, and I chickened out at an indicated 6500 RPM, somewhere around 95 MPH. As soon as I let off, it went into 4th like nothing bad just happened. At this age, she really doesn't need to spend as much time over 4000 RPM as she does.

    I don't have any telemetry, just the gauges and my GPS apps. What the heck is going on here? Or is something not going on that's supposed to be?
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  2. #2 Re: Downshift Skips 3rd, Can't Flat-Foot Out of 2nd 
    GXP Level Member GTPpower's Avatar
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    Sounds to me like 3rd won't hold any power. Nothing you can do in that situation but rebuild it.
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  4. #3 Re: Downshift Skips 3rd, Can't Flat-Foot Out of 2nd 
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    Ugh. That is what it sounds like, but are there any quick checks I can do in my driveway with a voltmeter before I take it to a transmission shop?
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