2018 Toyota Tacoma: Fuel/Propulsion System complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 42 owner complaints for the 2018 Toyota Tacoma that list the fuel/propulsion system component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11769379 (filed 10/06/2026): “2018 toyota tacoma sr 4wd double cab, 3.5l v6 (2gr-fks). at about 87,000 miles the check engine light came on with code p11ec, cylinder 1 air-fuel ratio imbalance (port). cylinder 1 failed compression. leakdown and coolant tests had passed earlier; borescope did not show heavy scoring. the toyota de…”
- NHTSA complaint ODI #11711048 (filed 01/15/2026): “Truck has strong smell of fuel in the cab…”
- NHTSA complaint ODI #11690804 (filed 10/01/2025): “The fuel pump as stopped working the vehicle will not start and the 4x4 is showing that it is not working. the vehicle is available for inspection. thankfully this happened while the vehicle was sitting over night but we had driven it the evening before it just stopped running. the fuel system could…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Varies
Depends on the specific failure; get a diagnosis first. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .