1991 E-350 Tranny recently started slipping almost always during turns. Friend says replace filter? 153,000 mi runs great otherwise. could $20 fix be all!!!!
replace the vacuum modulator and fill the tranny up to where it is soposed to be
I would try changing the fluid and filter,if you do check pan for metal shaveings or grayish gunk in bottom of pan,if their your tranny is in need of a rebuild.
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