2011 transmission
Senior Member
Joined: Nov 2011
Posts: 1,535
Likes: 204
From: Albertville, MN
I have noticed that my trucks' transmission slips, especially if it was sitting for 24hrs. It's even worse when it is cold out (fluids really thick), which it wasn't bad this year. But I noticed it because as I was traveling down the highway I noticed the RPM's at about 2100 when normally they would sit right about 1600. I don't know much about automatic transmissions but that doesn't seem right. How do you guys tell if the tranny is sliping?
Juggernaut
Joined: Jan 2011
Posts: 208
Likes: 1
From: Minneapolis, MN
Thats not slipping, thats the tranny warming up. Torque converter doesn't lock until it reaches 105 degrees. Found this out by noticing the same thing, then I switched to the trans temp screen on the LCD and once it hit 105 degrees the torque converter locks and the RPMs go down.
Senior Member
Joined: Jul 2011
Posts: 3,380
Likes: 503
From: Tonopah. AZ.
Sounds like the anti drainback valve is letting the oil run out of the converter when it sits. next time you start it let it idle for about 30 seconds before you put it in gear that will give it time to refill the converter. if this corects it the the valve is bad
5 Year Member
Joined: Jan 2011
Posts: 108
Likes: 27
From: KS
Try to take it to the dealer next week.
5 Year Member
Joined: Jan 2011
Posts: 108
Likes: 27
From: KS
Took my truck to the dealer today. Service manager said there is a tsb for this problem. Need to replace 2 solenoids in the transmission. I will post the tsb when I get my truck back tomorrow.