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
01 —Owner reports

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.”
Owner complaint to NHTSAFiled Nov 17, 2020Power train, Electrical systemODI 11374977
“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.”
Owner complaint to NHTSAFiled Dec 1, 2016Power trainODI 10928947
“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”
Owner complaint to NHTSAFiled Oct 9, 2008Power trainODI 10244973
“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…”
Owner complaint to NHTSAFiled Sep 28, 2007Steering, Suspension, Power train, Visibility, Air bagsODI 10204358
“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”
Owner complaint to NHTSAFiled May 15, 2007Suspension, Power trainODI 10190771
“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”
Owner complaint to NHTSAFiled Dec 28, 2006Suspension, Service brakes, hydraulic, Fuel system, gasoline, Power trainODI 10177263

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.