2003 Toyota Tacoma engine and engine cooling problems
14 owner complaints filed with NHTSA name the engine and engine cooling on the 2003 Toyota Tacoma — 4% of all complaints for this model year.
What owners report
“Purchased used vehicle from private seller. On the first day of use, after obtaining new title, tags, insurance coverage, the check engine light came on. The following day scheduled service w/ the local toyota dealer. Upon inspection was told that the truck needed a catalytic converter and there…”
filed Nov 23, 2012
“Well, I have owned my toyota tacoma 03' since it was new and was aware of some unusual patterns of increased engine revving for years. I told my mechanic specifically about the issue and he really didn't believe it was acting that way. The first time I experienced this phenomenon was when I left…”
filed Feb 25, 2010
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine and Engine Cooling problems in other Tacoma years
| Year | Reports | Share |
|---|---|---|
| 2025 Tacoma | 2 | 3% |
| 2023 Tacoma | 1 | 2% |
| 2021 Tacoma | 2 | 3% |
| 2018 Tacoma | 1 | 0% |
| 2014 Tacoma | 1 | 1% |
| 2012 Tacoma | 2 | 1% |
| 2011 Tacoma | 2 | 1% |
| 2010 Tacoma | 3 | 1% |
| 2009 Tacoma | 8 | 2% |
| 2008 Tacoma | 11 | 2% |
| 2007 Tacoma | 12 | 2% |
| 2006 Tacoma | 27 | 3% |
Other reported problem areas on the 2003 Toyota Tacoma
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.