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'84 Ford F-150 Transmission fluid in vacuum lines

Well, the title pretty much says it. My vacuum reservoir is practically full of transmission fluid. Is it time for a transmission rebuild, or is there some easy to replace valve that’s failed?



The truck is a '84 F150 302 automatic 2WD

Your vacuum modulator has failed. Luckily for you it’s not very expensive. This was a common problem back in the 70’s and 80’s.

Make sure you get the right modulator. Very cheap repair.

transman

Thanks ya’ll.