About a month and a half ago I put a rebuilt TH350 in my 78 Buick Regal, I’ve driven about 1k miles since then, regularly checked/added fluid, and ensured the kickdown is properly adjusted. Today for no apparent reason, first gear has started winding out, the engine revs high and I can hear the transmission whining. I eventually get to second but never saw third (under normal throttle it would shift to third at about 40-45).
It seems to shift from first to second alright, but still winds out a lot, and whines. Dropping from second to first makes the whining much worse.
Could it be a bad governor or vacuum modulator? Or more likely will I have to tear into the transmission? It drove like new up until today.
It seems to shift from first to second alright, but still winds out a lot, and whines. Dropping from second to first makes the whining much worse.
Could it be a bad governor or vacuum modulator? Or more likely will I have to tear into the transmission? It drove like new up until today.
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