3.6L V6 timing-chain wear and stop/start faults.
Inspect · Listen for chain rattle on start; test stop/start.

What the known faults on this Buick Enclave 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 2018–2024 Buick Enclave is timing chain, tensioner & guides at £900–£2,400. Few cars need every repair listed here · treat £2,450–£9,450 as the full exposure if one arrived with all of them.
3.6L V6 timing-chain wear and stop/start faults.
Inspect · Listen for chain rattle on start; test stop/start.
Clunking or popping noise when turning the steering wheel at low speeds or over small bumps.
Inspect · With the engine running and the vehicle stationary, turn the steering wheel lock-to-lock rapidly. Listen for a distinct mechanical clunk or feel for play in the steering column.
Infotainment reboots and camera faults.
Inspect · Test the screen and cameras.
Power boot lid fails to open fully, drops unexpectedly, or makes a grinding noise during operation.
Inspect · Operate the power boot using the key fob and the interior switch. Observe for smooth travel, listen for motor strain, and ensure the struts hold the tailgate in its fully open position.
Rough idle, difficulty starting immediately after refuelling, and an illuminated engine management light due to EVAP purge valve failure.
Inspect · Start the engine from cold, open the bonnet, and listen for an excessively loud ticking noise near the inlet manifold. Check the instrument cluster for an active engine management light.
Electronic parking-brake and ABS module faults.
Inspect · Check for warning lights; test the parking brake.
Damp carpets in the front footwells or water staining on the headlining caused by blocked sunroof drains.
Inspect · Press firmly on the front footwell carpets to check for dampness. Inspect the headlining around the sunroof aperture and A-pillars for water rings, mould, or discolouration.
9-speed automatic harsh or delayed shifts.
Inspect · Test-drive through low-speed shifts.
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.