Timing chain stretch on the 2.4L.
Inspect · Listen for a rattle and check for a check-engine light for chain codes.

What the known faults on this Chevrolet Equinox typically cost to put right at a UK independent garage · use the figures to price risk before you bid, and to justify a reduction when something shows up on inspection.
The single priciest documented job on the 2010–2017 Chevrolet Equinox is timing chain, tensioner & guides at £900–£2,400. Few cars need every repair listed here · treat £1,350–£4,700 as the full exposure if one arrived with all of them.
Timing chain stretch on the 2.4L.
Inspect · Listen for a rattle and check for a check-engine light for chain codes.
AC compressor failure.
Inspect · Confirm cold AC operation.
2.4L Ecotec excessive oil consumption (piston rings) — can starve the engine of oil.
Inspect · Check oil level, watch for low-oil warnings, and confirm any ring/engine work.
Stalling / no-start on the 2.4L.
Inspect · Ask about any stalling history.
Ranges are indicative parts-and-labour costs at a UK independent garage, inclusive of VAT. Franchised dealers typically sit 40–80% higher, and prestige or electrified variants sit at the top of each band. Always get a written quote before committing.
Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.