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
01 —Owner reports

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”
Owner complaint to NHTSAFiled Jun 3, 2011Engine and engine coolingODI 10404311
“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”
Owner complaint to NHTSAFiled Oct 20, 2009Engine and engine coolingODI 10289570
“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”
Owner complaint to NHTSAFiled Oct 20, 2009Engine and engine coolingODI 10289569
“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”
Owner complaint to NHTSAFiled Jan 15, 2009Engine and engine coolingODI 10255668
“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.”
Owner complaint to NHTSAFiled Mar 31, 2005Engine and engine cooling, EquipmentODI 10116179
“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.”
Owner complaint to NHTSAFiled Mar 24, 2005Engine and engine coolingODI 10114601

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.