No downshift on 4l60E!!!

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Jun 21, 2008 | 02:37 PM

Batyrkhan

Thread Starter

Intermediate

Joined: Feb 2007

Posts: 44

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No downshift on 4l60E!!!

Hello Vette Community,
I need your help with trans again. Suddenly my 4l60e transmission stopped downshift (overdrive) . I am not sure if I am naming things correctly, but let me explain. Usuaally when you you push acelerator on any speed it shoudl downshift to previous gear, BUT IT Do
esn'. Generally trans works fine. I have 95 Coupe.
PLease help me to identify the problem.

Batyr

Jun 21, 2008 | 03:22 PM

Pete K

Race Director

Joined: Feb 2004

Posts: 12,518

Likes: 19

Scan it. If the tps or other sensor is out of whack, it could cause shift issues.

Jun 21, 2008 | 09:32 PM

rickneworleansla

Le Mans Master

Joined: Aug 2004

Posts: 5,141

Likes: 7

From: Metairie Louisiana

throttle cable

Check the throttle cable for slack. My throttle was down to around 89% and it would not downshift when floored because the PCM was not reading WOT.

Jun 24, 2008 | 03:35 AM

Batyrkhan

Thread Starter

Intermediate

Joined: Feb 2007

Posts: 44

Likes: 0

Thank you Guys!!!
I hope that is the problem.
Pete, your ray of technical spiritual power should help

Thanks
Batyr

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