Problems · by component
1998 Plymouth Neon engine and engine cooling problems
91 owner complaints to NHTSA about the 1998 Plymouth Neon cite engine and engine cooling, 53% of all 173 complaints for this model year.
Complaints
91
53% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
1
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“CAR HAS 36,000 MILES ON IT AND OIL STARTED RUNNING OUT UNDERNEATH THE CAR. TOOK CAR TO DEALER AND THE HEAD GASKET WAS BLOWN. THIS IS A KNOWN PROBLEM AND CHRYSLER HAS YET TO CORRECT IT. UPON FURTHER INVESTIGATION I HAVE FOUND THAT I WILL HAVE THIS PROBLEM AGAIN SINCE IT IS A DEFECT FROM THE MANUFACTURER. I WAS TOLD FROM MECHANIC THAT SEVERAL OTHER CARS THE HEADS ARE ALSO AFFECTED BY THIS PROBLEM. *TR”
“S10 APPROPRIATE HANDLING CONTROL RE DEFECTIVE NEW CHRYSLER VEHICLE FWD TO POTUS RE HOW CORPORATIONS ARE ALLOWED TO OPERATE IN THE USA. *NJ WITHIN A WEEK OF THE CONSUMERS MOTHER PURCHASING THE VEHICLE, HE HEARD AN ABNORMAL NOISE COMING FROM THE ENGINE. THE DEALER TOLD THE CONSUMERS MOTHER THERE WAS NOTHING WRONG WITH THE VEHICLE AND THAT WAS JUST THE WAY THE VEHICLE SOUNDED. THE CONSUMER STATED THE VEHICLE HAS 54,000 MILES AND WITH SUCH LOW MILEAGE, THE VEHICLES ENGINE ROD IS ABOUT TO FAIL. THE PROBLEM WITH THE MOTOR WAS THAT THE OIL PRESSURE SENDER MOUNTED ON THE REAR OF THE MOTOR LEAKED. THE LEAK WAS NORMALLY SMALL AND ONLY LEAKED WHEN THE VEHICLE WAS IN MOTION. HOWEVER, OVER TIME, THE LEAKING CAUSED EXCESSIVE HEAT TO THE MOTOR WHICH CAUSED WEAR AND TEAR ON THE HEAD GASKETS, PISTONS AND RODS. *JB”
“S10 APPROPRIATE HANDLING CONTROL RE DEFECTIVE NEW CHRYSLER VEHICLE FWD TO POTUS RE HOW CORPORATIONS ARE ALLOWED TO OPERATE IN THE USA. *NJ WITHIN A WEEK OF THE CONSUMERS MOTHER PURCHASING THE VEHICLE, HE HEARD AN ABNORMAL NOISE COMING FROM THE ENGINE. THE DEALER TOLD THE CONSUMERS MOTHER THERE WAS NOTHING WRONG WITH THE VEHICLE AND THAT WAS JUST THE WAY THE VEHICLE SOUNDED. THE CONSUMER STATED THE VEHICLE HAS 54,000 MILES AND WITH SUCH LOW MILEAGE, THE VEHICLES ENGINE ROD IS ABOUT TO FAIL. THE PROBLEM WITH THE MOTOR WAS THAT THE OIL PRESSURE SENDER MOUNTED ON THE REAR OF THE MOTOR LEAKED. THE LEAK WAS NORMALLY SMALL AND ONLY LEAKED WHEN THE VEHICLE WAS IN MOTION. HOWEVER, OVER TIME, THE LEAKING CAUSED EXCESSIVE HEAT TO THE MOTOR WHICH CAUSED WEAR AND TEAR ON THE HEAD GASKETS, PISTONS AND RODS. *JB”
“REPORTS ON DEFECTIVE PARTS MADE BY CHRYSLER WITH REGARD TO 1998 PLYMOUTH NEON ENGINE OVERHEATING AS A RESULT OF A MANUFACTURING DEFECT IN THE RADIATOR FAN RELAY, COOLANT RESERVOIR AND/OR THE COOLANT CAP. *NJ”
“HEAD GASKET FAILED AT APPROXIMATELY 32,000 MILES. HEAD GASKET WAS REPLACED AT A CHRYSLER DEALERSHIP AND THE NEW HEAD GASKET FAILED AGAIN WITH LESS THAN 40,000 MILES ON THE GASKET. THIS IS A KNOWN PROBLEM WITH NEONS AND CHRYSLER HAS YET TO ISSUE A RECALL.”
“HEAD GASKET FAILURE AT 37500 MILES ( 2001) HEAD GASKET FAILURE AT (83125 MILES) RESULTING IN OIL CONTAMINATION/CHECK ENGINE LIGHT PROBLEM/SPARK PLUG FOULING. REAR OIL SEAL FAILURE ( STARTED AT 55125 MILES)- $ 2000 REPAIR BILL TO REPLACE HEAD GASKET AND REAR OIL SEAL AT 83125 MILES.”
Showing 6 of 91 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 31, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.