NHTSA recall 87V165000
Engine and engine cooling › Exhaust system › Emission control › Crankcase (pcv)
Buick Skyhawk and 3 more
Reported Oct 26, 1987126,319 vehicles affectedGENERAL MOTORS CORP.Built Aug 1, 1982 – May 1, 1983
The defect
Internal corrosion of pulsair check valve assembly could permit exhaust gas to melt the plastic shut off valve and draw valve pieces into the air cleaner and throttle body.
The risk
If valve pieces lodge against throttle plate, engine maynot return to idle resulting in loss accelerator control and possibly a crash.
The remedy
Replace pulsair check valve and shut off valve with newly designed valves.