Starting at about 50,000 miles, experienced intermittent, sporadic, engine failures while underway, and without warning. Engine can always be restarted by shifting to neutral while underway, or to park, when stopped, and turning ignition key. Can continue perhaps a few to many miles with no further interruption. Service technicians claim likely in electronic ignition or fuel control system, but a replacement of crankshaft sensor lasted perhaps 5 to 10,000 miles when same engine failure, while moving and in traffic, happened again. Service people advise can be any one of a number of electronic components, but no way of knowing for sure which one. Is a hazard when driving, but with no apparent known way of repairing.
1994 Pontiac Bonneville engine complaints
Page 2 of 2: complaints 11 to 14 of 14, newest first, as owners wrote them.
The water pump broke off the engine, the engine overheated. Dealer says there may be internal damage to engine.
Engine fire.
Bumper has melted over exhaust pipe, smells coming into car. Tt
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