2017 Chevrolet Equinox: Blown rear main seal
Common wear/failure (not a recall)
Symptoms
Owners of the 2017 Equinox report: blown rear main seal. CarComplaints.com lists 23 owner complaints, average mileage 81,600 miles.
NHTSA has 192 owner complaints for the 2017 Equinox in this area. Examples:
- NHTSA complaint ODI #11769745 (filed 10/07/2026): “I own a 2017 chevrolet equinox with a 2.4l 4-cylinder engine and approximately 50,000 miles. the vehicle suddenly stopped starting without any prior warning signs, unusual noises, or dashboard warnings indicating a serious mechanical problem. after the vehicl…”
- NHTSA complaint ODI #11768453 (filed 10/02/2026): “Engine oil message system failed. vehicle available for inspection upon request. personal safety and safety of passenger and others at risk due to driving car with no to little oil burning oil presents loss of control of vehicle while operating. problem co…”
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: new main seal, engine pressure wash, all new oil (5 reports) replace engine (3 reports) replace rear main seal (3 reports) replace rear seal, timing chains and actuators (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 $2,120 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
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