1990 Chevrolet Lumina APV Questions

All 1990 Chevrolet Lumina APV Questions

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all the gauges are out of wack
Replaced IAC. Car now pulsates when idling between 900 and 1700 RPM's. Car has now been running like this for 25 minutes.
How do you correctly install a IAC valve
How does one remove the rear bumper cover from the above car?
Car starts but you have to pump the pedal to keep it running, hot or cold.