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Transmission overheat

36K views 9 replies 9 participants last post by  Sandstone  
#1 ·
So I am sure this has been answered at some time or another and if so please just point me in the right direction.

Yesterday my better half was driving my 2009 Patriot on the highway at around 70 mph with an ambient air temp of around 68 F. The A/C was running as well. All of a sudden the safety systems kick in and the vehicle slows down to 50 and the RPMs go high. The transmission overheat light comes on. She pulls over and turns it off. Waits and then turns it on and the problem is solved. She also turned off the A/C. Goes down a ways and it happens again.

I trade out vehicle with her at work and drive it home going 80 mph with the A/C on blast and an ambient air temp of 61 F. No problems.

So does anyone have an idea? I just want to know so when I take it in I can point the mechanics in the right direction.
 
#2 ·
Have them change the fluid and filter. It will keep happening until you do.
In the time it took for you to swap out vehicles the trans and trans fluid had cooled and therefore did not over heat on you.
Another tip.... If it happens again, pull over and put the transmission in park or nuetral and set the brakes. This keeps the circulating pump running to help cool the fluid faster. By shutting the engine off, it stops the recirculating pump and the hot fluid just sits and has to cool on it;s own without the help of the trans cooler thermostat system built into it.
 
#7 ·
Have them change the fluid and filter. It will keep happening until you do.
In the time it took for you to swap out vehicles the trans and trans fluid had cooled and therefore did not over heat on you.
Another tip.... If it happens again, pull over and put the transmission in park or nuetral and set the brakes. This keeps the circulating pump running to help cool the fluid faster. By shutting the engine off, it stops the recirculating pump and the hot fluid just sits and has to cool on it;s own without the help of the trans cooler thermostat system built into it.
On any vehicle, if it is over heating, yes pull it over and put in park, turn the AC off & turn the heater on high, than when it has cooled, trying it again driving on the road, but make sure your heater is still on full heat and the fan turned on high till you get to where you are going, it might get very hot in your car, but you can put the windows down, and if needed slowdown to 50 or 55 mail per hr., if it continues to over heat pull over and call for help. If you are still on the road, get over as far as you can and make sure you turn on your for ways on lights
 
#5 ·
So I am sure this has been answered at some time or another and if so please just point me in the right direction.

Yesterday my better half was driving my 2009 Patriot on the highway at around 70 mph with an ambient air temp of around 68 F. The A/C was running as well. All of a sudden the safety systems kick in and the vehicle slows down to 50 and the RPMs go high. The transmission overheat light comes on. She pulls over and turns it off. Waits and then turns it on and the problem is solved. She also turned off the A/C. Goes down a ways and it happens again.

I trade out vehicle with her at work and drive it home going 80 mph with the A/C on blast and an ambient air temp of 61 F. No problems.

So does anyone have an idea? I just want to know so when I take it in I can point the mechanics in the right direction.
I went through the same thing with my 09 patriot.. didn’t think there was going to be an end to the problem.. After the first transmission blew out, I stopped going to the dealership (thieves!!).. they wanted close to $8k for labor and new transmission.. I found rebuilt for $3,500.. the light started to come on a few years later. This time I took it to my buddies shop. There is an aftermarket transmission cooler that piggybacks the original system. Seems to be working great now. Also, check your transmission fluid dipstick tube (I know there isn’t an actual dipstick in there), but my friend found the thing isn’t even supported well, and mine had cracks in the metal, causing the system to not be an enclosed system anymore.
 
#6 ·
So I am sure this has been answered at some time or another and if so please just point me in the right direction.

Yesterday my better half was driving my 2009 Patriot on the highway at around 70 mph with an ambient air temp of around 68 F. The A/C was running as well. All of a sudden the safety systems kick in and the vehicle slows down to 50 and the RPMs go high. The transmission overheat light comes on. She pulls over and turns it off. Waits and then turns it on and the problem is solved. She also turned off the A/C. Goes down a ways and it happens again.

I trade out vehicle with her at work and drive it home going 80 mph with the A/C on blast and an ambient air temp of 61 F. No problems.

So does anyone have an idea? I just want to know so when I take it in I can point the mechanics in the right direction.
Perhaps she touched the gear stick while driving (women do a lot of funny things behind the steering wheel).
If so the transmission was put in a certain (and to low) gear.
The moment you shut down it will reset but this will happen everytime you touch the gear stick while driving.
You have to put it back in Drive.