2021 Chevrolet Tahoe: Ticking noise from engine
Common wear/failure (not a recall)
Symptoms
Owners of the 2021 Tahoe report: ticking noise from engine. CarComplaints.com lists 1 owner complaints, average mileage 90,000 miles.
NHTSA has 185 owner complaints for the 2021 Tahoe in this area. Examples:
- NHTSA complaint ODI #11771160 (filed 10/14/2026): “Vehicle is a 2021 chevrolet tahoe premier with under 50,000 miles. the vehicle experienced a sudden and complete loss of reverse gear, accompanied by violent lurching, sputtering, and dangerous hesitation/stuttering while accelerating between gears at speed. a…”
- NHTSA complaint ODI #11766558 (filed 09/23/2026): “The vehicle suffered complete internal engine failure due to a snapped timing chain on startup. the vehicle turned over via the starter motor but failed to start. a professional diagnosis confirmed the broken timing chain caused extensive valve-to-piston damag…”
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: dealer tore down the engine - lifters and burns oil (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 $3,800 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .