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Tech Question

Fite Bonastre Pere, Lleida, Spain, 1970 Dodge Monaco 383

I have problems in my transmission. I've changed my filter and fluid, but when they engage the gear, the engine runs high but the transmission don't engage, the car don't run more fast. It sounds like I have no speed gear, then if I pick down the gas, the transmission change and the gear function good. When I drive about 50mph, I have no problem, only on low speed. When I put "D" in stop position, I put on gas the car starting speed but when they change from first to second speed, they have problems. In the third speed I have no problem. To resolve it I must to put down the gas, they change and then I can put up gas.
Thanks a lot. Pere.

Pere-

Unfortunately, it soulds like the transmission needs a total rebuild (disassemble, replace all "wear" parts and seals, reassemble). Before doing that, however, there are a few thing to check / try:

1. Be sure the transmission fluid is full. Check hot, in neutral.
2. Be sure the kickdown linkage, from the carb to the transmission, is functioning and properly adjusted.
3. Failing #1 and #2, as a last resort, add some brake fluid - maybe 2 deciliters - to the transmission fluid; sometimes this swells the internal seals enough to stave off the rebuild for a while.

Rick

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