What causes the engine to stall when putting the transmission in reverse or forward?

Asked by Dec 02, 2014 at 05:06 PM about the 1977 Mercury Comet

Question type: Maintenance & Repair

The car is a 77 mercury comet with a 302V8. It appears to have a C4. The engine runs
fine when in park or neutral. When engaging the transmission at idle, it seems to be in
direct drive with no slip.

1 Answer

5,035

I'd check to see if the vacuum modulator was mis-adjusted or bad.

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