99 2.5L Auto downshifting hard when cold: Please help - Ranger-Forums - The Ultimate Ford Ranger Resource

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Old 01-22-2008
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Join Date: Jan 2008
Location: Ohio
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99 2.5L Auto downshifting hard when cold: Please help

Hi, new to forum and and I have a question. I just purchased a 99 Ranger 2.5L Automatic transmission. When the engine is cold the transmission downshifts hard when I come to a stop. The fluid level is good and color appears OK. Any ideas?


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Old 01-22-2008
rolsmojave3's Avatar
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Join Date: Jun 2006
Location: Wisconsin
Posts: 2,852
If it works fine when its' warm, then let it warm up. When the fluid is cold it's thicker and it will have a delayed effect on engaging the clutches inside, you'll feel it as a hard shift. The best way to let it get to operating temp is to drive it slow and easy for the first 1-5 minutes. Heavy-duty trucks are required to have their auto-trans' at operating temp before driving.
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Old 01-29-2008
Reddog99's Avatar
Join Date: Sep 2007
Location: Jamul, CA
Posts: 109
Since you've purchased a used vehicle and have no idea about how it was previously maintained, or what additives might have been put in, I'd get a good flush & change the tranny fluid. Be sure they use Mercon V. It's the latest & greatest.
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