2017 Toyota Tacoma: Loud knocking sound
Common wear/failure (not a recall)
Symptoms
Owners of the 2017 Tacoma report: loud knocking sound. CarComplaints.com lists 2 owner complaints, average mileage 40,750 miles.
NHTSA has 36 owner complaints for the 2017 Tacoma in this area. Examples:
- NHTSA complaint ODI #11741962 (filed 06/04/2026): “Truck has 116k miles, started losing power and acceleration diminished. cel and trac off light came on. pulled over twice after experiencing same issue. took to mechanic and diagnostic code p0301 (cylinder 1 misfire). replaced 6 spark plugs to be safe, and rep…”
- NHTSA complaint ODI #11739290 (filed 05/21/2026): “The contact owns a 2017 toyota tacoma. the contact stated that while driving, the engine revved lightly. over time the vehicle began to lunge forward, and the revving had become more intense. the rpm increased and revved. while reversing, the vehicle lunged. t…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: replace short block (1 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
CarComplaints.com owners report a typical repair cost of about $7,400 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .