Close
Why does my transmission gears go out when hot?
1999 Buick Park Avenue

Why does my transmission gears go out when hot?

(1999 Buick Park Avenue)
The transmission Shifts fine when car is first started and cool. When it heats up (180°-190°) ALL gears go out (even reverse) and the car wont drive. As soon as it cools down even a little like 5 minutes the car will drive and shift fine again for another few blocks. Why? What could be causing this? Why would it shift fine until heated up? HELP!!!!
2 answers & 5 comments
Popular Answer
on June 08, 2015
Suspect pressure control solenoid inside trans pan.. Not a DIY fix!.. Can be scan tested with proper scanner, forget about the parts store - *parts salesperson* with some kind of code reader!
Sign in to reply
on June 08, 2015
Thank you! That is my next step. I will update after it is completed and we find if that was the issue..
on June 08, 2015
on June 08, 2015
on June 08, 2015
Cool, thanks..
Automatic Transmission Diagnosis
$88 - $111 Learn More
on June 08, 2015
Suspect pressure control solenoid inside trans pan.. Not a DIY fix!.. Can be scan tested with proper scanner, forget about the parts store - *parts salesperson* with some kind of code reader!
Sign in to reply
on June 08, 2015
Thank you! That is my next step. I will update after it is completed and we find if that was the issue..
on June 08, 2015
on June 08, 2015
on June 08, 2015
Cool, thanks..
on June 08, 2015
Check the trans fluid first. That's the first thing to always do. Could be low that will cause gears to fail. That go from there. It might say how to check it on the stick. Some need to be warm and in park to check. Some in neutral.
Sign in to reply
on June 08, 2015
Already have checked the Trans fluid it is all good..

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
When the ac on low/med settings, the car doesn't shake. but when ac is on high setting car shakes and makes loud fan...
Ac stays when car is running. the heater will work asbwell