Safety: Worn ball joints and steering parts can fail. Do not drive on a joint with obvious play.
Checks, in order
- Sway bar end links and bushingsGrab the end links and shake them with the truck on the ground, then look for worn bushings. This is the cheapest cause of a clunk over bumps.easy $ · under about $50
- Ball jointsLift the front end on stands and rock the wheel at 12 and 6. Pry between the lower arm and knuckle and look for movement or torn boots.medium $ · under about $50
- Control arm bushingsLook for cracked rubber and arm movement at the pivot bolts. Torque the bolts at ride height after any replacement.medium $$ · about $50 to $500
- Shocks and X-REASLook for fluid on the shock bodies. On trucks with X-REAS, check the cross linked shocks and lines for leaks.medium $$ · about $50 to $500
- Steering rack and tie rod endsCheck for leaks at the rack boots and play at the tie rod ends. A weeping rack is common on aging trucks.medium $$ · about $50 to $500
Applies to: 2003 to 2009 4Runner with the 4.0L 1GR-FE V6 and the 4.7L 2UZ-FE V8, 2WD and 4WD. Engine specific items are labeled, and some issues apply mainly to early model years.
Tools and parts for these checks
Links below are Amazon affiliate links: as an Amazon Associate, toyotadata earns from qualifying purchases, at no extra cost to you. Confirm fitment for your exact truck before you order.
| ITEM | USED FOR | BUY |
|---|---|---|
| Pry bar set | Checking ball joints, bushings and tie rod ends for play | Shop on Amazon |
| Sway bar end links | A common clunk source and a cheap fix | Shop on Amazon |
| Outer tie rod ends | Replacing worn tie rod ends | Shop on Amazon |
| 1/2" drive click torque wrench | Tightening suspension and driveline bolts to spec | Shop on Amazon |
The same problem on other Toyotas
More 4th Gen 4Runner problems
- V6 losing coolant, cold start misfire or overheating (early 4.0L) (Engine)
- Frame rust or rusted suspension mounts (Frame & Body)
- Sticky, melting or cracked dashboard (Body & Electrical)
- V8 timing belt service: when is it due? (Engine)
- Ticking or diesel-like noise on cold start (Engine)
- Engine overheating or temperature gauge climbing (Cooling)
All 16 4th Gen 4Runner symptoms in the interactive troubleshooter →
General guidance from owner experience. Confirm torque specs, fluid capacities and procedures in the factory service manual. Brakes, steering and anything structural: if in doubt, have a qualified shop inspect it before driving.