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Engine coolingPart report

2003 Toyota Toyota Truck Engine cooling Problems

Complaints
2about this part
Share
33%of 6 total for the year
Median mileage
64,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the engine cooling of the 2003 Toyota Toyota Truck, 33% of the 6 complaints for this model year. Where a mileage was given, the median is 64,500 miles.

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.

“I own a 2003 Toyota tacoma reg cab 2wd registered in california. My catalytic converter was easily stolen from my vehicle. Four bolts and it's free from the exhaust system. I understand why these thefts are happening. What I don't understand is why Toyota is charging me over $1,000.00 to replace it. As of this posting, I have found no aftermarket cat converter manufacturer that meets ca obdii specifications for this model truck. A life-long Toyota customer, no more.”

NHTSA complaint #10237611, filed 2008-08, 75,000 miles

“The problem that exists is on my 2003 Toyota tacoma. It will all of a sudden lose power and have no throttle response, almost as if it was hitting an engine governor. The rpms usually drop anywhere from 200-500 and then comes back up. The power would slowly come back after keeping my foot on the throttle. It consistently does it after accelerating out of an intersection (usually around 25 MPH or while cruising (around both 45 MPH or 75 MPH) on the highway. …”

NHTSA complaint #10134459, filed 2005-08, 54,000 miles

Engine cooling: other model years

YearComplaintsShare of year
2003233%
2001117%
200017%
1996120%
1995110%
1994211%
1993319%
1992212%
1991327%
1989338%
1988229%

Other parts of the 2003 Toyota Toyota Truck

Steering
2 complaints
Other or unknown
1 complaints
Body and structure
1 complaints

← All problems reported for the 2003 Toyota Toyota Truck

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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