Problems · by component

1999 Kia Sephia engine and engine cooling problems

82 owner complaints to NHTSA about the 1999 Kia Sephia cite engine and engine cooling, 19% of all 428 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
82
19% of all complaints
Crashes
2
Reported by owners
Fires
23
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
“TL*THE CONTACT OWNS A 1999 KIA SEPHIA. SHORTLY AFTER THE VEHICLE WAS PURCHASED, IT FAILED TO START. THE VEHICLE WAS TOWED TO THE DEALER AND REPAIRED. ONE MONTH LATER, WHILE DRIVING AT AN UNKNOWN SPEED, THE VEHICLE BEGAN TO SPUTTER AND EVENTUALLY SHUT OFF. PRIOR TO SHUTTING OFF, THE VEHICLE LOST POWER STEERING ABILITY AND THE CONTACT STRUCK A CURB. THE CV AXLE JOINT WAS DAMAGED. THE VEHICLE HAS NOT BEEN DIAGNOSED BY THE DEALER. THE CURRENT MILEAGE WAS 147,000 AND FAILURE MILEAGE WAS 140,000.”
Owner complaint to NHTSAFiled Apr 16, 2008Steering, Engine and engine coolingCrash reportedODI 10224672
“I OWN A 1999 KIA SEPHIA AND MY DAUGHTER USES IT AT SCHOOL. THE PROBLEM IS THAT KIA WILL NOT HONOR THE WARRANTY FOR THE REPAIR OF THE CATALYTIC CONVERTER. THE CASE REF NBR IS K1085742. MANY REASON WERE GIVEN, ALL RELATING TO A MANUAL ENGINE FLUSH, COOLANT FLUSH,ETC. MY RESEARCH SHOWS THAT THERE IS NO CORRELATION BETWEEN THE DEFECTIVE PART AND THE SELECTED MAINTENANCE ITEM. MY DAUGHTER SHOULD NOT HAVE PAID FOR THE CONVERTER. (ALSO THEY ARE ABOUT 50% OF THEIR COST ON THE OPEN MARKET). *NM”
Owner complaint to NHTSAFiled Oct 20, 2006Engine and engine coolingODI 10171445
“1999 SEPHIA BRAKES, TRANSMISSION WERE REPLACED. CONSUMER FEELS THAT THE EXHAUST SHOULD BE RECALLED. *TS THE TECHNICIAN DETERMINE THAT THERE WAS A SPLIT IN THE CENTERPIPE OF THE EXHAUST WHICH CAUSED IT TO BE LOUD. THE PART IS A PIECE OF FLEXIBLE HOUSING. THE PART COULD NOT BE PURCHASED SEPARATELY BUT THE CONSUMER HAD TO PURCHASE THE ENTIRE PIPE. THE PART WAS REPLACED BUT SPLIT AGAIN THREE MORE TIMES. *NM SINCE THE VEHICLE WAS PURCHASED THE BRAKES HAVE BEEN REPLACED, THE TRANSMISSION HAS BEEN REPLACED AND GAS LEAKAGE PROBLEM HAS BEEN REPAIRED.”
Owner complaint to NHTSAFiled Jun 1, 2006Service brakes, hydraulic, Engine and engine cooling, Fuel system, gasoline, Power trainODI 10159458
“THIS CAR HAS BEEN A CONSTANT REPAIR AND FINANCIAL PROBLEM FOR THE LAST 4 YEARS STARTING TWO WEEKS AFTER I PURCHASED THE CAR. IT IS AN UNSAFE VEHICLE AND CAN NOT BE KEPT MAINTAINED FOR SAFETY OR RELIABILITY IT WAS PURCHASED WITH 21000 MILES ON THE VEHICLE AND A MAJORITY OF REPAIRS HAS HAD TO BE FIXED. 4 STARTERS, IGNITION SWITCH, IGNITION SWITCH WIRING HARNESS (IGNITION STILL DOESN'T WORK), AIR BAG SENSOR, AIR BAG WIRING (AIR BAGS STILL DOES NOT WORK), ALTERNATOR, FRONT PASSENGER SIDE DRIVE AXEL BROKE WHILE I WAS DRIVING THE CAR, RIGHT PASSENGER BALL JOINT FELL OFF THE CAR WHILE I WAS DRIVING THE CAR, MASTER CYLINDER AND REAR BRAKE CYLINDER WENT OUT AT THE SAME TIME WHILE I WAS DRIVING THE CAR, HEATER/AIR CONDITIONING MOTOR. THE CAR HAS BEEN TOWED 3 TIMES, AND HAS LEFT ME AND MY CHILDREN STRANDED TOO MANY TIMES TO COUNT. THE CAR IS STILL IN NEED OF MAJOR REPAIR. THE DRIVER REAR STABILIZER BUSHINGS NEED REPLACED, THE DRIVER'S SIDE DRIVE AXEL NEEDS REPLACED, THE AIR BAGS STILL DO NOT WORK, THE IGNITION SWITCH STILL GETS STUCK AND WON'T TURN OVER, AND TWO WEEKS AGO A PISTON WAS THROWN THROUGH THE ENGINE AND CAUGHT THE CAR ON FIRE. THE CAR IS NOW PARKED IN MY DRIVE…”
Owner complaint to NHTSAFiled Jan 6, 2006Suspension, Service brakes, hydraulic, Engine and engine cooling, Power train, Electrical system, Air bagsFire reportedODI 10147054
“1) AIR CONDITIONER HOSES DEFECTIVE AND WILL NOT HOLD CHARGE 2) CAR RATTLES AND MAKES NOISE COMING FROM TRUNK AREA, TAKEN TO DEALER REPEATEDLY WITHOUT ANY IDEA OF HOW TO REMEDY THE PROBLEM 3) CAR WOULD LOOSE POWER WITHOUT WARNING AND AT DANGEROUS TIMES, TOOK TO DEALER 3 TIMES BEFORE THE CAR FAILED COMPLETELY AND THEY WERE FINALLY ABLE TO FIX THE PROBLEM 4) REAR DRIVERS SIDE WINDOW STICKS AND RATTLES, TAKEN TO DEALER UN-REPAIRABLE 5) REAR DOOR LOOK DOES NOT WORK, TAKEN TO DEALER REPAIRED BUT NOW IT DOESN'T WORK YET AGAIN 6) ENGINE LIGHT ON, TOLD BY DEALER THE GAS CAP WASN'T TIGHT ENOUGH 7) POWER LOCKS OPEN AND CLOSE AT INTERVALS WHILE DRIVING THE CAR 8) ENGINE LIGHT BLINKING, NO IDEA WHAT PROBLEM IS THIS TIME CONTACTED KIA AND ASKED TO SPEAK TO FIELD REPRESENTATIVE AND WAS TOLD THAT KIA COULD DO NOTHING TO ASSIST OWNER IN FIXING OWNER. THIS CAR IS A MONEY PIT AND DO NOT RECOMMEND TO ANYONE TO BUY A KIA UNDER ANY CIRCUMSTANCES. *JB”
Owner complaint to NHTSAFiled Dec 27, 2005Engine and engine cooling, Visibility, Structure, Latches/locks/linkagesODI 10146137
“LIGHTS ARE BLINKING OFF AND ON CONSTANTLY WHEN I DRIVING AT NIGHT. I WENT TO KIA DEALERSHIP IN WILLIAMSBURG. THEY TOLD ME THAT THEY COULDN'T FIND THE PROBLEM. THAT IT WILL TAKE THEM A COUPLE OF DAYS. THAT I WOULD BE CHARGE BY THE HOUR. I WAS SO UPSET I LEFT THE DEALERSHIPS AND THEY CHARGE ME 350 DOLLARS AND MY CAR WAS NOT FIX. I WAS TOTALLY RIP OFF BY THEM. I ALSO TOLD THEM THAT SAME DAY TO FIX MY AIR CONDITIONER DUE TO IT WAS SHUTTING OFF AND ON WHEN I HIT THE BRAKES. WHEN I USING THE GAS PEDAL MY AIR CONDITIONER WORKS AND THEN WHEN I HIT THE BRAKES THAT AIR CONDITIONER SHUT OFF. THE KIA DEALER DID NOT HAVE CLUE WHAT TO DO>>>>HELP!!IT ALSO DOING THIS WITH THE HEAT ALSO.....I NOT SURE ON THE EXACT DATE OF SERVICE. I WILL FIND RECEIPT AND BANK STATEMENTS TO GO ALONG WITH THIS. *NM”
Owner complaint to NHTSAFiled Sep 12, 2005Engine and engine cooling, Exterior lightingODI 10136277

Showing 6 of 82 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Engine and engine cooling: emission control

Free remedy

VEHICLE DESCRIPTION: PASSENGER VEHICLES. MANUFACTURING CHANGES WERE MADE TO THE ORVR SPRING FORCE AND FLOAT WIRE LENGTH REDUCING THE VALVE ANGLE. CERTAIN VALVES CAUSED FUEL SHUT OFF BEFORE THE TANK REACHED 95% OF NOMINAL CAPACITY.

Engine and engine coolingReported Jul 17, 2000NHTSA 00V175000
Data from NHTSA Recalls API · synced Nov 11, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.