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  • avatar karjunkie 10/12/08 5:24 pm PST

    The proper transmission fliud is usually listed in your owners manual. For the most part, DEXRON/MERCON will do for any vehicle unless its one of those exotic types in which case you probably have the money to take it to a shop and pay them 85.00 per hour to top up your transmission, Older cars and trucks sometimes use the different fluids such a TYPE 'F" fluid for Fords. I doubt the use of Mercon damaged your transmission. More likely, all the gunk in the transmission was keeping your seals tight and the new transmission fluid disolved the gunk and caused the seals to leak. You can try some additives that will help minimize the leak if it is small and due to the seals. Bar's Leaks Transmission Stop Leak is designed to stop leaks due to drying, hardening or shrinking of transmission seals and gaskets. This may keep your truck going for some time, but ultimately the correct fix is in a transmission mechanic's shop

Answers

  • karjunkie 10/12/08 5:24 pm PST

    The proper transmission fliud is usually listed in your owners manual. For the most part, DEXRON/MERCON will do for any vehicle unless its one of those exotic types in which case you probably have the money to take it to a shop and pay them 85.00 per hour to top up your transmission, Older cars and trucks sometimes use the different fluids such a TYPE 'F" fluid for Fords. I doubt the use of Mercon damaged your transmission. More likely, all the gunk in the transmission was keeping your seals tight and the new transmission fluid disolved the gunk and caused the seals to leak. You can try some additives that will help minimize the leak if it is small and due to the seals. Bar's Leaks Transmission Stop Leak is designed to stop leaks due to drying, hardening or shrinking of transmission seals and gaskets. This may keep your truck going for some time, but ultimately the correct fix is in a transmission mechanic's shop

  • canddmeyer 10/13/08 4:59 am PST

    If it didn't leak before the fluid change, but leaks afterward, it's possible the dealer did a poor job cleaning up the mess made when the tranny fluid was changed. Crawl under the vehicle and clean it up, then drive it a bit and look for look for leaks.

    As far as the tranny acting acting up, I can only speculate the tranny fluid was flushed moving debris into places it doesn't belong, causing new problems. That's why I recommend a fluid change, but never a flush. And if there is a tranny filter, hopefully it was replaced or cleaned, but many shops are lame about this too.

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