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Engine coolingPart report

1991 Chevrolet Blazer Engine cooling Problems

Complaints
12about this part
Share
5%of 222 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 12 complaints about the engine cooling of the 1991 Chevrolet Blazer, 5% of the 222 complaints for this model year. 8 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“When driving and applying brakes there is a loud noise coming from the brakes.dealer states there isn't anything wrong with the brakes. Also, there is thick black smoke coming from the exhaust system when driving the vehicle due to malfunctioning of the catalytic converter. The dealer can't determine problem with the brakes, and t thinks the problem is with the computer chip.”

NHTSA complaint #832187, filed 1998-12

“While driving at any speed and without no prior warning when attempting to make a left hand turn vehicle will stall completely out. Consumer has contacted dealer, dealer unable to determine the cause. Please provide any further details.”

NHTSA complaint #890999, filed 2001-06

“While driving stepped on brake pedal, but vehicle would not stop on time. Right exhaust manifold , exhaust pipe and oxygen sensor failed. There was a clunk intermittently from back on turns due to broken torsion bar mounts. 4wd often hard to engage due to vac switch in transfer case failure. Replace rear main seal, oil pan and gasket because of rust and oil leak. Serpentine belt failed. Distributor cap and rotor failed. Axle seals and bearings are leaking.”

NHTSA complaint #867271, filed 2000-08

“While the consumer was traveling the vehicle start smoking, consumer then pulled over and then the vehicle became engulfed in flames.(ohio traffic crash report 10-89-298)”

NHTSA complaint #567658, filed 2002-09

“Second incident of driving and engine quitting, upon stopping smoke coming from under hood, when hood is opened the alternator is burning. Last time was 4 years ago and the incident was the same.”

NHTSA complaint #720460, filed 2000-03

Engine cooling: other model years

YearComplaintsShare of year
202424%
202325%
202212%
202132%
202031%
201911%
2008120%
200517%
200448%
200368%
2002208%
2001237%
20006311%
19996214%
1998649%
19979312%
199614913%
199521317%
1994427%
19935110%
199293%
1991125%
1990516%
1989411%
1988718%
198727%
1986526%
1985517%
1984111%

Other parts of the 1991 Chevrolet Blazer

Brakes
129 complaints
Seat belts
26 complaints
Electrical system
16 complaints
Vehicle speed control
11 complaints
Transmission and drivetrain
8 complaints
Fuel system
7 complaints
Seats
7 complaints
Steering
5 complaints
Suspension
5 complaints
Tires
5 complaints
Body and structure
4 complaints
Visibility (wipers, defrost, mirrors)
4 complaints

← All problems reported for the 1991 Chevrolet Blazer

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology