Case file · FORD-EXPLORER-2006-2010 · Field document

Ford Explorer 2006–2010 · Pre-purchase checklist

Bring this to the inspection. Every check below is specific to this generation's documented failure modes — not generic used-car advice.

1. Check 01

   Cold-start the engine yourself (V6 cars). A rattle or 'bucket of bolts' clatter for the first seconds is the classic timing chain cassette/tensioner warning — walk away or price in a major engine job.

2. Check 02

   On V6 cars, drive it through the 1-2 and 2-3 shifts from a stop, both gentle and firm. Harsh jolts, a flare (revs jump between gears), or a delayed/banging reverse engagement point to the 5R55S servo bore/solenoid problem.

3. Check 03

   Cold engine only: open the hood and check the radiator tank seams for dried coolant crust or wetness — plastic end-tank radiator leaks are a documented pattern on this generation.

4. Check 04

   Listen for a droning hum at 40–60 mph and gently weave within the lane; a hum that changes with steering load means a wheel bearing/hub on its way out.

5. Check 05

   On 4.6L V8 cars built before late 2007, ask whether the spark plugs have already been changed (ideally to one-piece plugs). Original two-piece plugs routinely break off in the heads on removal.

6. Check 06

   Cycle the 4WD system on a loose surface and confirm it engages and disengages without binding or warning lights.

7. Check 07

   Run the VIN for open recalls — including the wiper motor gear recall (NHTSA 05V520000) — and pull a history report.