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1988 Ford F-150 Repair Question


Topics covered: Transmission, U joint, Sensor.
Mileage: 75,000 miles.

Asked on July 10, 2012

My clunks and jerks when shifting into and out of overdirve (automatic transmission.) all other upshifts and downshifts are normal.

The problem seems to happen at all speeds.
Avatar Asked by lynngrim

Answer

Replied on July 10, 2012

CHECK THE U JOINTS AND THE TRANS MOUNT

Tiny Answered by cadieman (expert)
2,932 answers provided
Replied on July 11, 2012

The ujoints don't clunk and the transmission doesn't jump when I change from Drive to Reverse, or Reverse to Drive.

Tiny Response from lynngrim
1 question asked
Replied on August 8, 2012

sorry i seam to have dropped your question.this seams to be a internal problem in the trans.its more noticed when your at higher speeds.youll need to take it to a trans shop and let a specialist drive it.fyi you only test the motor mounts with the rev to drive test.use a pry bar to check if the trans mount is broken and u joints can clunk if they get bad enough.ty for using 2carpros

Tiny Answered by cadieman (expert)
2,932 answers provided

Replied on August 8, 2012

I have replaced the Throttle Position Sensor and the transmission now shifts 3-4 and 4-3 mormally.

Tiny Response from lynngrim
1 question asked
Replied on September 7, 2012

lynngrm thank you for letting us know what the fix for your problem was. We appreciate you letting us know.

Tiny Answered by rivermikerat (expert)
5,495 answers provided