Problems · by component
2001 Mitsubishi Montero Sport engine and engine cooling problems
29 owner complaints to NHTSA about the 2001 Mitsubishi Montero Sport cite engine and engine cooling, 12% of all 242 complaints for this model year.
Complaints
29
12% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATES WHEN TOWING, ON STEEP GRADES, OR EVEN CONTINUOUSLY. DIAGNOSTIC TROUBLE CODE (DTC) P0125 IS DISPLAYED INDICATING INSUFFICIENT COOLANT TEMPERATURE, EVEN THOUGH ACTUAL COOLANT TEMPERATURE IS WITHIN NORMAL RANGE OF 200 TO 215 DEGREES. REPLACEMENT OF COOLANT TEMPERATURE SENSORS (2) AND THERMOSTAT WILL NOT RECTIFY THIS PROBLEM! THIS IS A KNOWN COMPUTER ERROR THAT MITSUBISHI MOTORS NORTH AMERICA WILL NOT ADDRESS OR PAY FOR THE REPAIR OF. NHTSA ITEM NUMBER: 10001033 MMNA TECHNICAL SERVICE BULLETIN: 0313001. *TR”
“I HAVE A 01' MITSUBISHI MONTERO SPORT XLS 3.0L AS OF THE LAST WEEK IN MARCH I HAD A PROBLEM WITH MY A/C AND CALL AUTO REPAIR SHOP TO MAKE A APPOINTMENT. TO MY SURPRISE THE MITSUBISHI/SATURN SHOP, THE PLACE THAT I HAD TAKEN IT TO 6MTHS TO A YEAR BE4, MY OXYGEN SENSOR TO BE REPLACED AND SOME OTHER THINGS, WAS GONE OUT OF BUSINESS. SO I CALL WHERE I PURCHASED THE VEHICLE FROM, AND WAS TOLD THAT I COULD GOTO A LICENSED MECHANIC SHOP TO GET MY A/C FIXED, OXYGEN SENSOR HAD DEFAULT AGAIN, BUT IT STILL HAD WARRANTY ON IT WITH THE PREVIOUSLY SHOP SO THE RECENT SHOP COULD NOT REPLACE IT AND I ALSO STILL HAD WARRANTY COVERAGE WITH THE CREDIT UNION THAT I PAY MONTHLY PAYMENTS TO. SO I CALLED THE WARRANTY GROUP, AND THE WARRANTY GROUP PAID FOR A/C TO BE FIXED AND I ONLY HAD TO PAY 100 DEDUCTIBLE. I RECEIVED MY SUV BACK ABOUT A WEEK LATER, THEN I NOTICED A KNOCKING WITHIN THE MOTOR SO I WENT BACK TO THE REPAIR SHOP, AND WAS TOLD THAT I NEEDED A OIL CHANGE, BUT I JUST RECENTLY HAD A TUNE-UP AND OIL CHANGE. SO I KNEW THAT I DIDN'T NEED A OIL CHANGE. THE SHOP COULD NOT DETERMINE WHAT CAUSED THE KNOCKING NOISE, BUT ON 5- 23-10 MY SUV HAD MALFUNCTION THIS TIME MY…”
“TL*THE CONTACT OWNS A 2001 MITSUBISHI MONTERO. THE CONTACT TOOK THE VEHICLE TO A LOCAL DEALER FOR ROUTINE MAINTENANCE. MONTHS LATER, HE TOOK THE VEHICLE TO A DIFFERENT REPAIR SHOP FOR AN OIL CHANGE AND WAS ADVISED THAT THE FORMER DEALER DID NOT REINSTALL THE HEAT COVER. WITHOUT THE HEAT COVER, THERE IS NO SAFEGUARD TO THE VARIOUS HOSES AND COMPONENTS IN THE ENGINE, WHICH HAS SEVERAL POTENTIAL SAFETY IMPLICATIONS. HE CALLED THE DEALER AGAIN AND WAS ADVISED BY THE MANAGER, TOM WANSTER, THAT HIS HEAT COVER WAS NOT LEFT THERE; HOWEVER, THEY DID LOCATE OTHER HEAT COVERS FOR SIMILAR MODELS. THE MANAGER WOULD NOT PROVIDE HIM WITH ANY ASSISTANCE. THE CONTACT FILED A COMPLAINT WITH THE FEDERAL TRADE COMMISSION. THE FAILURE MILEAGE WAS 95,000 AND CURRENT MILEAGE WAS 102,268.”
“MONTERO UNDER 50,000 MILES. HAVE TO REPLACE COMPRESSOR, ALIGNMENT BARS FOR SUN ROOF, AND BRAKES. COST $2700 WITH LABOR. HAVE OWNED THE VEHICLE FOR 4 MONTHS. NO WARRANTY LEFT. MONTERO HAS TO BE JUMPED TO TURN ON, BUCKS WITH DEFROST ON, NO AIR, NO RADIO, AND BRAKES ARE BAD. DEALER WILL NOT HELP WITH COST. *NM”
“I PURCHASED A 2001 MITSUBISHI MONTERO LTD FROM GIBBONS TOYOTA IN EYNON, PA. I ALSO PURCHASED A WARRANTY FROM THEM. MY ENGINE LIGHT COMES ON. THEY SAY SENSORS HAVE TO BE CHANGED. LIGHT CAME BACK ON. CHANGED ANOTHER SENSOR, LIGHT CAME ON. NOW THEY SAY IT IS THE CATALYTIC CONVERTER. THEY TELL ME IT IS COVERED BY MITSUBISHI FOR 8 YRS. THEY TRY ERTLEY MOTOR WORLD NUMEROUS TIMES AND CANNOT GET THEM TO RESPOND. THEY ARE IN WILKES-BARRE, PA. GIBBONS MGR THEN CONTACTED DOMIANO'S IN ARCHBALD. THEY TO DID NOT WANT TO HAVE ANYTHING TO DO WITH THIS. WHY IS IT THAT MITSUBISHI DEALERS WILL NOT STAND BEHIND THEIR WARRANTY'S. THIS IS THE 4TH MITSUBISHI I HAVE OWNED, AND NOW THAT I SEE THE SERVICE, IT WILL BE THE LAST. THEY ARE VERY IGNORANT PEOPLE. THEY TREAT YOU LIKE DIRT. VERY ARROGANT. SOMETHING SHOULD BE DONE ABOUT THIS. THERE IS AN 8 YR WARRANTY ON THE CONVERTER, AND IT SHOULD BE CHANGED WITH NO HASSLE. THANK YOU. THIS HAS BEEN GOING ON FOR THE LAST 6 MONTHS. *JB”
“I PURCHASED A 2001 MITSUBISHI MONTERO SPORT USED IN MARCH 2004, ONE MONTH AFTER PURCHASE I BROUGHT IT TO THE DEALERSHIP WITH A COMPLAINT OF A KNOCKING NOISE IN THE ENGINE. THE DEALERSHIP SAID NOTHING WAS WRONG. I HAVE PROPERLY MAINTAINED MY VEHICLE SINCE DAY ONE AND LEARNED TO LIVE WITH THE KNOCKING NOISE. ON OCT 23, 2005 THE WHILE DRIVING DOWN THE HIGHWAY THE KNOCKING NOISE BECAME EXCESSIVE SO I PULLED OVER, TURNED THE ENGINE OFF, WAITED A MINUTE AND RESTARTED. AS I STARTED TO ACCELERATE THERE WAS A LOUD KNOCK AND SMOKE WAS COMING FROM UNDER THE HOOD. MITSUBISHI IS CLAIMING THE VEHICLE THREW A ROD DUE TO SLUDGE IN THE ENGINE. THE ARE SAYING THIS WAS DUE TO NEGLECT OF THE VEHICLE DUE TO THE OWNER, ALTHOUGH THEY HAVE NEVER ONCE ASKED ME FOR RECORDS OF MAINTENANCE, WHICH I HAVE. THEY THEN SAY IT WAS FROM NEGLECT OF THE PREVIOUS OWNER. IN A REPORT I RECEIVED FROM THE DEALERSHIP MY VEHICLE HAS BEEN SITTING THEY SAY "ENGINE FAILURE DUE TO OIL STARVATION". I HAVE RECORDS OF 5 OIL CHANGES IN 18 MONTHS. RIGHT NOW MY VEHICLE IS STILL INOPERABLE AND HAVE A DATE SET WITH THE NATIONAL CENTER OF DISPUTE RESOLUTION. HOPEFULLY MITSUBISHI WILL SUCK IT UP AND DO WHAT THEY ARE…”
Showing 6 of 29 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 13, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.