Case file · TOYOTA-4RUNNER-2003-2009 · Field document

Toyota 4Runner 2003–2009 · 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

   Put it on a lift (or get on the ground with a flashlight and a screwdriver) and probe the frame rails, crossmembers, and body mounts. Surface rust is normal; flaking, scaling, or metal you can dent with a screwdriver is a walk-away.

2. Check 02

   On 2005–2009 V8s, check for a check-engine light with codes P0418, P1445, or P2445 — the secondary air injection failure. Ask if a bypass kit was installed (common) and confirm it passes emissions in your state.

3. Check 03

   Cold-start the engine and listen for a ticking that fades as it warms up — the classic cracked exhaust manifold symptom on both engines.

4. Check 04

   On Sport Editions, look for oil weeping at the shocks and the X-REAS hydraulic lines; a leaking system means replacing or deleting the whole setup.

5. Check 05

   Test firm, consistent brake pedal feel and watch for ABS/VSC warning lights — master cylinder/booster assembly failures show up in complaint data and are expensive.

6. Check 06

   Inspect the dashboard for cracks (2003–2005): Toyota's warranty program for it expired in 2017, so it's your cost now.

7. Check 07

   On V8s, get proof of a timing belt and water pump service within the last 90,000 miles.

8. Check 08

   Verify the open recalls are done by VIN — including the side curtain airbag module (16V-065) and floor-mat pedal entrapment (11V-113) campaigns.