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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by users over the course of many years.
If you have any questions, please feel free to email us.



Lincoln - Mercury
  Jim Grant's Tech Tips

'95 Ford Escort GT, Transmission Boil Over Problems

Q: I have a ‘95 Ford Escort GT with an automatic transmission. At 105K miles the transmission went out. The shop did a complete overhaul. I got the car back and drove it around town, then went on a highway trip. After about 30 miles, I noticed a large amount of smoke and the engine speed was increasing. I managed to get off the road and shut down. The entire engine compartment was covered in transmission fluid and a large puddle of fluid developed under the car. The car was towed in to the original shop and they said that a seal had failed allowing pressure to build up and blow the fluid out of the vent. They replaced the seal. After about 150 miles the engine RPM began to increase, I began to see smoke again and the transmission began to shift erratically. It was towed back to the shop and they told me that it was down about a quart on fluid and that it was blowing out of the vent again. They have replaced the cooler with a larger cooler and said that they enlarged a hole in the control valve per a manufacturer bulletin, that the transmission was not harmed and would be fine. I'm skeptical, to say the least..............Harold Schwartz

A: You were sharp enough to notice that the transmission wasn’t working right and stopped before it did. Good move on your part. If you drove until the transmission would not move the vehicle, than it would have likely been damaged. From your description I can’t help but wonder if the transmission cooler was the problem. At this point I would suggest driving the vehicle and keeping a close eye on the transmission fluid condition. If the fluid darkens or starts to smell burnt go right back to the transmission shop, they have some more work to do.

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