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1986 Pontiac Trans Am Repair Question


Topics covered: Transmission, Pressure test, Auto parts.
Mileage: 100,000 miles.

Asked on March 4, 2012

Pontiac Trans Am Transmission Problem

My 1986 Pontiac Trans Am sometimes will not shift properly and other times shifts perfectly. I have recently changed the filter and the fluid but had no effect.I was told the shift sensors in the transmission are bad. Where are these located and would this cause such a problem? Sounds reasonable but i'm not too familar with automatic transmissions. Thanks Randall
Avatar Asked by Randall Moore

Answer

Replied on March 4, 2012

So are getting a hard shift?

Tiny Answered by saturntech9 (expert)
23,388 answers provided
Replied on March 5, 2012

Yes,when it doesn't shift properly it is a hard shift.

Tiny Response from Randall Moore
2 questions asked
Replied on March 5, 2012

Thats usually caused by too high of pressure in the transmission.I would do a pressure test and see what you find there.

Tiny Answered by saturntech9 (expert)
23,388 answers provided

Replied on March 5, 2012

How is a pressure test done on a transmission?

Tiny Response from Randall Moore
2 questions asked
Replied on March 5, 2012

You need a transmission pressure tester kit i have a pretty nice set it was under 60.You have to hook it to the transmission like a oil pressure gauge.I will look and see if i can find info on checking the pressure on a car that old on the online data i have.

Tiny Answered by saturntech9 (expert)
23,388 answers provided
Replied on March 6, 2012

i found the info on doing a pressure test on your transmission.Let me know if your going to get a transmission pressure tester kit and i will post the info.

Tiny Answered by saturntech9 (expert)
23,388 answers provided

Replied on March 6, 2012

I plan to get one just have to find someone who sells them. I have tried Advance Auto Parts and Auto Zone with no luck.Will try different auto parts stores or maybe online.I appreciate the help and the quick response you have provided,it is greatly appreciated.

Tiny Response from Randall Moore
2 questions asked
Replied on March 6, 2012

Here is the one i have i have used it many times the nice part about it is there is a gauge for oil pressure and one for transmission pressure.Also it has quick release hoses.

http://www.amazon.com/gp/aw/d/B000R5G0DO/ref=mp_s_a_1?qid=1330997634&sr=8-1

Tiny Answered by saturntech9 (expert)
23,388 answers provided