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Transmission overheat Forums > > Transmission overheat Transmission overheat
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Old 09-09-2016, 08:37 AM
laughingdog laughingdog is offline
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2002 Altima Sedan
2006 Altima Sedan
 
Join Date: Sep 2016
Posts: 3
Question Transmission overheat

Hi guys.
The car is a 2002 Altima 3.5SE. Very low mileage (80,000) and drives without problems. No error codes.
I can't use my car on mountain roads. The first time I tried, after 30 minutes of climbing through tight S-bends with short straights, (only doing about 20mph, quite steep) the car jammed in second gear. Temp gauge read normal. I parked and opened the hood, waves of heat coming from below. Had to wait an hour for it to cool down.
So I took the car to a transmission place and had them fit a transmission cooler, an extra radiator basically, that sits in front of the other two, replaced the fluid with new synthetic.
A few days ago I tried the road again and I got further, but on the steepest part had the same thing again, jammed in second, had to park and wait half an hour before continuing. It's driving perfectly OK now and the transmission fluid looks fine.
Is this a design limitation in these cars? Am I going to have to fit an extra temp sensor and high speed electric fan in front of the cooler? Or do I just have to accept that this car is useless in the mountains?
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