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Engine coolingPart report

1994 Mazda B-Series Truck Engine cooling Problems

Complaints
6about this part
Share
5%of 122 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine cooling of the 1994 Mazda B-Series Truck, 5% of the 122 complaints for this model year.

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.

“Request for assistance-check attached paid bills to determine if any repairs qualify for recall. The drivability problem was constant and was present during normal road conditions and the EGR was found rusted and allowed incorrect EGR flow.”

NHTSA complaint #10103391, filed 2004-11

“On trips that are 80 miles or longer distributor cap module will heat up, and engine will fail to operate. Dealer has fixed various aspects of engine, but has not been able to remedy problem. Please provide any additional information / attachments / copies of receipts.”

NHTSA complaint #882256, filed 2001-03

“Vehicle exhibits knocking sound coming from passenger's area or rear of vehicle, generally from heat shield. Also, brakes either hesitate/slam or grind.in addition, rough idling.”

NHTSA complaint #536769, filed 1998-06

“Have been told on at least three seperate occations that problem w/ o2, throttle position and mass air flow sensors was nothing that could be fixed and that problem would not intensify and check engine light would remain only a nusance. Recently, check engine light remained on and engine ran erratic and fuel mixture rich. Now being told problem should have been fixed before and now I must bear cost of repair due to non- warranty. Have also been told by others that this is an ongoing problem with ford ranger,explorer/Mazda b4000,navaho”

NHTSA complaint #709758, filed 1999-08

Engine cooling: other model years

YearComplaintsShare of year
200713%
2002518%
200113%
200023%
199945%
1998913%
1997713%
199512%
199465%
1993444%
1992218%
1991321%

Other parts of the 1994 Mazda B-Series Truck

Brakes
30 complaints
Fuel system
21 complaints
Electrical system
13 complaints
Tires
13 complaints
Vehicle speed control
12 complaints
Suspension
8 complaints
Transmission and drivetrain
8 complaints
Exterior lighting
6 complaints
Steering
6 complaints
Seat belts
5 complaints
Body and structure
4 complaints
Wheels
3 complaints

← All problems reported for the 1994 Mazda B-Series Truck

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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