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hot day, auto trans over revs

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Old 08-24-2010, 05:14 PM   #1
montanabay [OP] montanabay is offline
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hot day, auto trans over revs

Hi All,

1996 2.7L 4WD Automatic. About three months ago I did a transmission fluid/filter change, I did my best to calculate in/out fluid to make sure I had about the right amount in it and also quadruple checked on the dip stick.

Well we've had our first day of 90+ degree weather here in the Bay Area and I noticed that the transmission seems to be reving fast and shifting a little slower.

I got the truck as level as possible and checked it after driving for a couple hours in the heat and the transmission oil was about .5" over the top "Hot" notch.

I was thinking that it might be a little over filled when extremely hot and the symptoms haven't manifested yet because we have a constant 70 degree weather pattern here and finally it got hot enough to cause problems.

So I just wanted to see if people thought that this might be from hot/expanded trans oil and I just need to drain 1/2qt?

Thanks!

Josh
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Old 08-24-2010, 05:17 PM   #2
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oh by the way its hot as balls in san jose 104. And thats hot for here you midwestern people
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Old 08-24-2010, 05:18 PM   #3
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I wouldnt bother with 1/2 inch over leave it,checking it while running right? 64 Degrees today East coast Hallealujah
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Old 08-24-2010, 05:27 PM   #4
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Quote:
Originally Posted by Mush Mouse View Post
I wouldnt bother with 1/2 inch over leave it,checking it while running right? 64 Degrees today East coast Hallealujah
FYI

my style dip stick has 4 notches, two for "cold", so the cold range is about 1" on the dip stick, same for the "hot" and I'm .5" over the "hottest" notch

At first I thought it was fine, but I didn't think it would be that much of a coincidence that the truck started doing this on the literally the first hot day of the summer and on the new fluid.

It hit 100 up here in Berkeley, 95% of the time its 70-80s.
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