Problems · by component
2001 Chevrolet Blazer power train problems
31 owner complaints to NHTSA about the 2001 Chevrolet Blazer cite power train, 9% of all 331 complaints for this model year.
Complaints
31
9% of all complaints
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
1
Reported by owners
What owners say about the power train
Verbatim from NHTSA complaints, newest first
“I HAVE A 2001 BLAZER THAT KEEPS POPPING UP A CHECK ENGINE LIGHT CODES.I.E P0301,P0753,P0756,P0758. I HAVE HAD THESE PARTS REPLACED TWICE IN THE LAST FEW MONTHS. MECHANIC SAID IT WAS RELATED TO THE ELECTRICAL SYSTEM. THE CODES COME BACK AFTER DRIVING FOR ABOUT 100 MILES.”
“TRANSMISSION COOLER LINES BETWEEN THE RADIATOR AND TRANSMISSION ARE CORRODED AND PITTED. THE LINES ARE INSTALLED OVER THE EXHAUST CATALYTIC CONVERTER. THERE IS TRANSMISSION FLUID LEAKING FROM THE LINES, WHICH IS DRIPPING ONTO HOT EXHAUST COMPONENTS AND BURNING, CREATING A FIRE HAZARD. THESE LINES APPEAR TO BE STAINLESS STEEL, WHICH SHOULDN'T BE CORRODING. THE LINES SHOULD NOT BE IN SUCH CLOSE PROXIMITY TO EXHAUST COMPONENTS. WHEN THE VEHICLE IS NOT RUNNING/IN MOTION, TRANSMISSION FLUID POOLS ON THE GROUND UNDER THE VEHICLE. IN MOTION, THE FLUID IS BEING BLOWN REARWARD, COATING THE UNDERCARRIAGE AND EXHAUST.”
“MY 2001 CHEVY BLAZER CHANGES FROM 2WH TO 4 WHEEL DRIVE AUTOMATICALLY WHILE THE VEHICLE IS MOVING. THIS ISN'T THE FIRST TIME THIS HAS HAPPENED. I WAS ABLE TO GET MY CAR OFF OF THE ROAD SAFELY AND CHANGE IT BACK INTO 2WH, BUT IT KEPT SWITCHING BACK INTO 4 WHEEL DRIVE. THERE IS EVIDENTLY A DEFECT. *TR”
“NUMEROUS THINGS HAVE GONE WRONG WITH MY 2001 MONTE CARLO. 5 OR 6 TIMES THE DEALERSHIP HAS REPAIRED THE DRIVER SIDE AIRBAG WHERE IT CONTINUALLY POPS OUT. I AM REALLY CONCERNED WHEN IT MIGHT EXPLODE W/O A CRASH OR IF THERE IS A DRIVER SIDE CRASH IF IT WILL COME OUT TO PROTECT ME. STEERING AND FRONT SUSPENSION POPS. AT 55,117 MILES WE HAD THE OIL CHANGED (WHICH HAS BEEN DONE EVERY 3000 MILES) OR LESS AND ON THE MULTI POINT INSPECTION SHEET, IT LISTED SEVERAL THINGS THAT "MIGHT NEED ATTENTION" SOON. THEY ARE STEERING LINKAGE AND STEERING COMPONENTS, CV AXLE BOOTS OR DRIVE SHAFT AND U JOINTS. THESE THINGS SHOULD NOT BE WORN OUT ON A CAR WITH NO MORE MILES THAN THIS. MY REAR WINDOW DEFOGGER DOESN'T WORK. NOTICED THIS AFTER ONE OF THE AIRBAG REPAIRS. THIS CAR HAS BEEN VERY WELL TAKEN CARE OF BUT STILL THE NOISES PERSIST AND NOW TO BE TOLD THAT THESE PARTS MIGHT NEED REPAIR OR REPLACEMENT? WE PAID A LOT OF GOOD MONEY FOR THIS VEHICLE (THIS IS A LIMITED EDITION HIGH SPORT VEHICLE) AND FEEL GM SHOULD BUY IT BACK AND REIMBURSE EVERY DIME OF IT DUE TO THE POOR QUALITY OF IT OR PROPERLY REPAIRED OR PARTS REPLACED AT GM EXPENSE WHILE PROVIDING AN EQUAL VALUE VEHICLE WHILE…”
“FRONT WHEEL BEARINGS HAD TO BE REPLACED FOR A SECOND TIME. THE CAR HAS ONLY 60,000 MILES ON IT! THE SECOND TIME, THE BEARINGS WERE NO LONGER COVERED UNDER WARRANTY AND I INCURRED OVER $1000 IN REPAIR COSTS. *AK”
“SINCE I BOUGHT MY 2001 CHEVY BLAZER, I'VE HAD TO REPLACE BALL JOINTS EVERYTIME I HAVE A FRONT END ALIGNMENT. THIS YEAR I'VE REPLACED 3 WHEEL BEARINGS, FUEL PUMP, AND I JUST LOST MY TRANSMISSION. I'VE HAD THE LIGHT RECALL FIXED. MY SERVICE ENGINE LIGHT STAYS ON, BUT YOU CANNOT PUT A COMPUTER TO IT BECAUSE IT DOESN'T WORK. MY ABS LIGHT COMES AND GOES. WHATS NEXT? *NM”
Showing 6 of 31 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.