Drivetrain Questions and info regarding transmissions, clutches, etc.

5AT Owners: Harsh 1-2 upshift when cold?

Old May 8, 2005 | 02:02 PM
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5AT Owners: Harsh 1-2 upshift when cold?

I've been noticing this lately even when the morning temps have been going up into the 40's: When I drive off in the morning after the car's been sitting overnight, the first couple of 1-2 upshifts are a little harsh- the car sort of jerks forward a little and the RPM drops very quick into 2nd. The rest of the upshifts (2-3-4-5) are perfectly fine, very smooth and unobtrusive. After a couple of mins the 1-2 shift also becomes smooth Anyone else notice this?
 
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Old May 8, 2005 | 02:10 PM
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Originally Posted by ARH_twilightblue
I've been noticing this lately even when the morning temps have been going up into the 40's: When I drive off in the morning after the car's been sitting overnight, the first couple of 1-2 upshifts are a little harsh- the car sort of jerks forward a little and the RPM drops very quick into 2nd. The rest of the upshifts (2-3-4-5) are perfectly fine, very smooth and unobtrusive. After a couple of mins the 1-2 shift also becomes smooth Anyone else notice this?
Completely normal. The tranny fluid needs to warm up and flow through the system.
 
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Old May 8, 2005 | 02:11 PM
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Oh I should add that the harshness is only there when it shifts at low RPM (~ 2000). If I take 1st to 2500rpm then shift, it's fine. Am I driving it too slow in the morning?
 
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Old May 8, 2005 | 02:13 PM
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Thanks for the quick reply EZZ, but why are all the other shifts smooth right from the beginning? Is it because the tranny is loaded more on the 1-2 shift, so the it's more noticeable?
 
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Old May 8, 2005 | 03:06 PM
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Originally Posted by ARH_twilightblue
Oh I should add that the harshness is only there when it shifts at low RPM (~ 2000). If I take 1st to 2500rpm then shift, it's fine. Am I driving it too slow in the morning?
No worries bro, both my Sedan and Coupe were like that.
C.
 
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Old May 8, 2005 | 05:23 PM
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Originally Posted by ARH_twilightblue
Thanks for the quick reply EZZ, but why are all the other shifts smooth right from the beginning? Is it because the tranny is loaded more on the 1-2 shift, so the it's more noticeable?
Don't really know but all my cars have a harsher 1-2 shift. Someone more knowledgable may know.
 
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Old May 9, 2005 | 12:04 PM
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EZZ is right, trany fluid needs to warm up.
 
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Old May 11, 2005 | 08:44 AM
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always in my garage 24/7 so...
but its a normal indication according to my other cars sitting outside of my garage
 
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