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

   On 4WD trucks, cycle 4X4 HIGH and 4X4 LOW on a loose surface and confirm it engages and disengages without binding or warning lights. On 2008-2010 V8 AWD trucks, set AWD to LOCKED in the message center and confirm the 4X4 light comes on.

7. Check 07

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