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4T60e Transmission will not shift to D/OD

1997 C1500 w/5.0 Vortec. Vehicle is in excellent cond. and well maintained. It instantly quit shifting to drive/over drive. No slipping or etc. It just appears to go into neutral after second

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  • Anonymous Jan 18, 2009

    I have the same problem. Help...

  • jehunt46 Apr 14, 2009

    i have the same problem except mine is a 1988 olds cutlass ciera. it has the 440-t4 transaxle and shifts fine until it gets good and warm, then nothing except 1st and 2nd gear.

  • yadayada
    yadayada May 11, 2010

    How many miles on truck?

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  • 275 Answers

It sounds like the 3-4 clutches are out or the forward sprag has failed you may need a tranny rebuild

Posted on Nov 12, 2008

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1997 ford escort quit shifting onto overdrive


The OD solenoid in the transmission or the transmission control module is defective. It's also possible the torque converter clutch plates are worn. That's where over drive comes from

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The Transmission shifts very hard after the first shift. Check engine light is on as well as the Green overdrive light blinks off and on. Speed sensor was cleaned and even replaced.


Your on the right track. Have you scanned the PCM, what codes did you get? If not and you changed the vehicle speed sensor,(VSS) did you check the (OSS) output shaft speed sensor, it will cause torque converter lock up and hard shifting and that pesky OD light flashing. I have also found that clutch packs inside auto tranny's dry out. Ford and some aftermarket companies sell a fluid that will recondition the clutch packs.

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My 99 denali quit shifting into overdrive. Everything still seems pluged in. Any suggestions?


For car not changing gears it can be shifter assembly issue, or it can also be transmission issue. Get the shifter assembly inspected with ignition OFF.

For more troubleshooting, I suggest you to get the Following help link checked, its complete step by step procedure to inspect gear shift issues: -----

GEAR SHIFT ISSUES

http://alltypesofpartsreplacing.blogspot.com/2012/11/gear-shift-issues.html

==========


OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html
------------

These will help.
Thanks.

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1 Answer

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Why did Check engine light come on along with blue OD light?


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