80mph hickup

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Old 01-06-2003, 10:06 PM
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Three Wheelin'
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80mph hickup

usually my TL-S hickups at 40-50mph while driving on local roads.

Today it produced a hickup at 80mph. That did not feel good.

It did it after I went over the top of a mild hill (overpass actually)
Old 01-06-2003, 10:31 PM
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define "hickup"...
Old 01-06-2003, 11:43 PM
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Did you put some "alcohol" in your fuel?
Old 01-06-2003, 11:53 PM
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Does "hickup" mean when it feels like the car very very quickly downshifts and upshifts.....a quick jolt and then the car acts like nothing ever happened?

I had that very often on my first tranny, but still get it occasionally on my new tranny....always at highway speeds.
Old 01-07-2003, 08:32 AM
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The hickup feels like quick downshift/quick upshift. It also feels like loss of engine power.

A few times I was able to see the tach during the hickup - the RPMs go down about 500rpm and then up again.

It usually happens to me when driving 45-50mph in a steady manner with light, steady pressure on the gas pedal (or on cruise control). It never happened on the highway until yesterday.

It feels pretty uncomfortable - it catches you off guard, slightly propels you into the dashboard, feels and sounds like the engine is going to quit.

Some people say it is caused by torque converter locking/unlocking, some people say it is caused by grade-logic in the tranny. All I know is that I have never experienced this in any other car.
Old 01-07-2003, 08:45 AM
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Well, you already mentioned it... but it really does sound like the Torque converter locking/unlocking. Whether or not it's b/c of grade logic is really irrelivant. The TC in this car is more noticable then others... which is why you're feeling it.

Once I started feeling this happen I learned how to control it. Now I can pretty much fully control when the TC locks or unlocks by slightly varying pressure on the gas pedal. I use SS all the time... so that may make it easier too since I always know what gear I'm in.....
Old 01-07-2003, 10:44 AM
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ever since my tranny failed, I am trying to abstain from SS.
Old 01-07-2003, 10:53 AM
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Lightbulb

Originally posted by Ruski
ever since my tranny failed, I am trying to abstain from SS.
really? Every tranny failure that I remember happened in full auto. I don't remember reading any that occured while in SS. I obviously don't remember them all... so I could be wrong
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