1989 Ford Aerostar Slipping - Drive Train & Driveline


Question: Recently I had my transmission overhauled. The tranny had to be taken apart a second time because the 4th gear seal had problems. Now when under hard acceleration, stressing the engine, the transmission goes out of gear and acts like it is in neutral. If I back off the accelerator for a short period of time, the transmission goes back into 4th gear. Is this a transmission problem or is it in the electronics or computer or vaccumm?

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Technican: Hi; Most likely is going to be internel trans problem. Youcan disconnet the overdrive wiring harness located on the right side of the trans. If it goes thru the gears and shift smoothly then it will tell you have internal problems. .
Owner: After I disconnect the wiring, are you telling me to drive the car to check it out?
Technican: Hi: Yes. Take it for atest drive. Thanks.
Technican: Hi; Waiting for response. Thanks.

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