Cadillac STS Forum - 2005 through 2012 Discussion, Transmission skipping. in Past Cadillac Vehicle Discussion; How cold is cold?
Cars will make the trans stay in lower gear to force higher RPM to warm up ...
Just payed attention to my car today. Noticed that when it's really cold out, it will hang in gears MUCH longer than normal. When it finally changes, it doesn't snap or jerk. It's a normal, smooth shift. But the RPMs are higher because of staying in gear longer. Any reason for concern?
This is perfectly normal. When the car is cold, it'll delay the shifts and not lock up the torque converter. It's an attempt to warm up the engine and transmission faster so your heater will work and gas gauge will drop slower
I had a similar problem with my old ford explorer. Dealer wanted to rebuild the transmission, and felt that was to much for the problem. Did some research and ended up dropping the pan and switched two transmission control solenoids for the gear I was having the slippage. Put it back together and drove it. Well guess what. I slipped in another gear. Bought a new transmission solenoid and replaced bad one. And 4 years later transmission runs as good as it was new. Spent about 100 between the solenoid and fluid over 2500 to re build it.