There are 4 stored owner reports matching the engine leading-label group for the 2001 Chevrolet Trailblazer in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)CONSUMER STATED THAT WHILE DRIVING AND WITHOUT WARNING OIL IS LEAKING FROM THE VEHICLE AND CAUSING THE CONSUMER TO REFILL MORE THEN OFTEN. CAUSE UNKNOWN. DEALER NOTIFIED. TS
WHILE DRIVING VEHICLE WILL STALL/ LOSES ALL POWER. DEALER CONTACTED. *AK
WHILE DRIVING VEHICLE WILL STALL OUT WITHOUT ANY WARNING.*AK
2001 TRAILBLAZER CUTS OFF WHEN DRIVING. AFTER HAVING IT SERVICED FOUND THAT MASS AIR FLOW SENSOR NEEDS TO BE REPLACED FUSE AND HOSE ASSEMBLY. *TS *JB
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 22, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.