Two problems related to check engine light on have been reported for the 1997 Plymouth Neon. The most recently reported issues are listed below.
Engine detonation, driving 55 mph normal highway, perfect road conditions. Engine blew up in a bang, parts fell off, got car to side of the road and the engine was still running (but no power)!! **** (idiot lights) oil or check engine light didn't light up before the incident***** Dodge mechanic (at schmit bros. ) claims "due to lack of oil". . . He says motor "wound tight". How come engine still ran after explosion?? the last/previous oil change was about 4,000 miles ago. Oil level was fine on the day of the detonation, even after engine blew up there was oil gushing out onto highway. Replaced one defective (coils) solenoid and three master brake cylindars during ownership. Contact ray at (262) 284-3100 schmit bros. Dodge, port washington for repair details. We traded the defective Dodge in for a used car, we lost around $6,000 in equity/fair value. I feel Dodge owes us $6,000 cash for their defective products. I really mean it!! Dodge should pay us. **** could detonation be caused low grade gas, those fancy engine valves and another faulty solenoid??.
When driving noticed the engine check light kept coming on. Then, engine would misfire each time. Took vehicle to dealership for repairs. Problem has not be resolved.