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Goin down road shift hard. anyway to bypass that transmission sensor unit

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  • David Harrelson
    David Harrelson Mar 27, 2015

    Hi Angie Mullin, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? What year? What trans? What engine?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 321 Answers

SOURCE: transmission shifts hard

Your car has the 125c/3T40 model trans,3 speed automatic with lockup.When you say you unplugged the "speedometer",if you are referring to a square electrical connector on the trans,facing the radiator,that connector is not the speedometer,but the lockup circuit inside the transmission.It is likely the lockup solenoid inside the side pan has gone bad and is malfunctioning.It is a common problem on those transmissions.You will lose some gas mileage by unhooking the connector,and eventually,years down the road,will hurt the trans from the fluid running too hot.Lockup clutch application in a General Motors lockup torque convertor helps to cool the fluid.

Posted on Sep 02, 2008

  • 1 Answer

SOURCE: automatic transmission shifts hard and

have u checked the tranny fluid

Posted on Oct 06, 2008

emissionwiz
  • 75077 Answers

SOURCE: 1995 buick century transmission trouble

Most likely causes is the OD shift solenoid or less likely the VSS

Posted on Oct 29, 2008

  • 1 Answer

SOURCE: transmission shifts hard down from highway gear only (D>3rd)

I had the same thing! It was a computer issue. It only cost me about $35.00.

Posted on Dec 29, 2008

  • 634 Answers

SOURCE: 1996 2500 diesel auto transmisssion, auto shifting while on road

sounds like trans has gone bad, last service of filter and fluid? clogged screen or low/burnt fluid would effest but if clunking sounds like trans is shot

Posted on Jul 06, 2009

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1. Clutch Slave (possibly worn)-this will cause soft or hard clutch pedal feel, slipping clutch, unintended clutch release, hard gear engagement, no/insufficient clutch movement.

*2. Clutch pedal Mounting Plate (possibly cracked)-this will cause improper gear engagement, hard gear engagement, soft pedal feel, insufficient clutch movement.

*this plate is located above the clutch pedal itself, apply pressure on the pedal with one hand while inspecting the plate for fatigue cracks(use a bright flashlight). This is very common on these models. This problem will eventually get worst and most mechanics never figure this out.

more questions email me at gimconsulting@ymail.com!!

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1 Answer

Transmission shifts hard


Your car has the 125c/3T40 model trans,3 speed automatic with lockup.When you say you unplugged the "speedometer",if you are referring to a square electrical connector on the trans,facing the radiator,that connector is not the speedometer,but the lockup circuit inside the transmission.It is likely the lockup solenoid inside the side pan has gone bad and is malfunctioning.It is a common problem on those transmissions.You will lose some gas mileage by unhooking the connector,and eventually,years down the road,will hurt the trans from the fluid running too hot.Lockup clutch application in a General Motors lockup torque convertor helps to cool the fluid.

Sep 02, 2008 | 1990 Buick Skylark

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