trans problem
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New User
Joined: May 2005
Posts: 13
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From: Selah Washington
trans problem
I was driving home tonight doing 60ish on the freeway. All the suden the over drive light started blinking. As I took my exit the downshifts were hard and after the stop sign the up shifts were harder yet. Is this a VSS problem or ?????
Thanks,
Dan
Thanks,
Dan
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
You will need to pull the codes to know for sure.
Try cleaning the VSS in the rear diff. Check the connector too.
The hard shifts are normal when the trans senses slippage or excessive
heat. It raises the line pressure to save itself. This may go away by itself after cooling
down over night. If not pull #22 & #9 fuse under the hood to reset the PCM.
Try cleaning the VSS in the rear diff. Check the connector too.
The hard shifts are normal when the trans senses slippage or excessive
heat. It raises the line pressure to save itself. This may go away by itself after cooling
down over night. If not pull #22 & #9 fuse under the hood to reset the PCM.
New User
Joined: Sep 2008
Posts: 8
Likes: 0
i think i just had the same problem. if after stopping and shutting the truck off did it run alright? on mine it would run fine and then all of a sudden it would down shift hard. took mechanic 100 miles to get it to fail again.
came down to needing a speedometer cluster, they said it was the modular.
i also replaced the speed sensor and it did not fix the problem.
if that is the problem check car-parts.com for used cluster, alot cheaper than what i had to give for mine. make sure mileage is close to what you
have and tire size is same(tire size can be re-programmed).
came down to needing a speedometer cluster, they said it was the modular.
i also replaced the speed sensor and it did not fix the problem.
if that is the problem check car-parts.com for used cluster, alot cheaper than what i had to give for mine. make sure mileage is close to what you
have and tire size is same(tire size can be re-programmed).
