There is a possibility that a separated motor mount may allow the engine to lift, which may affect the throttle linkage, momentarily increasing throttle, possibly to full throttle.
Engine & cooling
Chevrolet Belair Engine problems by year
0 complaints filed with NHTSA about the Chevrolet Belair's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
Engine complaints by model year
Engine recalls
Exhaust emissions (carbon monoxide) may enter the interior of the vehicle when the exhaust pipe is substantially out the design position, deteriorated from use, or when an opening in the body develops near the exhaust outlet and, at the same time, a negative...
Latest Belair engine complaints
No complaints in this area yet.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data