So I finally got my brakes done on my 91 (AOD), and can drive fast enough on the couple hundred feet I have without being "public" roads. New IAC, new fuel pump, new cam position sensor. Car starts immediately, comes down to idle right away, and vacuum will sit in the 16-17 range (have a separate gauge than the dash). Brakes applied in idle is not a problem. Plugs and wires haven't been changed yet, but they're on the list. RPM at idle is around 900. No CEL.
Shift into any gear, idle goes to about 500, but the vacuum drops to 10 and the engine stumbles over itself. It does not require me to touch the gas to save it; stays running. Accelerate slow, not in boost, and there's a clicking sound from the trans, vacuum bounces with each click. Seems like it "catches", smooths out as RPM increases but seems low on power. If I accelerate under boost, same initial symptoms, but being in boost makes them less noticeable. Both scenarios, it shifts smoothly into second.
Just looking for ideas to look at. Don't see any noticeable vacuum leaks upon visual inspection. Could there be a blockage in my exhaust/cats? How would I know without taking out the exhaust? Could it be the valve body in the trans? Any input is appreciated.
Shift into any gear, idle goes to about 500, but the vacuum drops to 10 and the engine stumbles over itself. It does not require me to touch the gas to save it; stays running. Accelerate slow, not in boost, and there's a clicking sound from the trans, vacuum bounces with each click. Seems like it "catches", smooths out as RPM increases but seems low on power. If I accelerate under boost, same initial symptoms, but being in boost makes them less noticeable. Both scenarios, it shifts smoothly into second.
Just looking for ideas to look at. Don't see any noticeable vacuum leaks upon visual inspection. Could there be a blockage in my exhaust/cats? How would I know without taking out the exhaust? Could it be the valve body in the trans? Any input is appreciated.