Common problems · 1990–95
2nd Gen 4Runner problems: 8 things to check
The problems owners and specialists flag most on the Toyota 4Runner 2nd Gen, the repairs they end up doing and what those cost, plus the years and recalls to watch. Sourced, not scraped.
2nd Gen 4Runner problems to check before you buy
- Head-gasket history (V6)Ask for paperwork. Forum owners report that trucks repaired under the V06 campaign got a label on the left front door hinge post near the check strap. Otherwise look for coolant loss, overheating, white exhaust after warm-up or a misfire on cylinder 6.
- Timing belt on the 3VZ-EThe V6 is belt-driven. A 4Runners.com member recalls four years or 96,000 km as the typical interval; owners recommend an Aisin kit with the water pump. No records means do it now.
- Frame and body rustCheck frame rails and crossmembers, the tailgate bottom, rear bumper and wheel arches. A rust-free body and frame is rare outside dry states, and replacement panels are hard to find.
- Sagging rear coilsThe four-link rear was new, but Wikipedia notes it sags too. A nose-high stance usually means tired springs; Old Man Emu sells 2 in replacement coils in two rates for these trucks.
- Power rear window and tailgateThe roll-down rear glass and tailgate lock are known trouble spots — IH8MUD members say the electric rear window 'can be problematic' on both early generations. Make sure it goes up and down.
- Four-cylinder or V6?The 22R-E is slower but simpler and has no head-gasket campaign behind it; the 3VZ-E has more torque but more to go wrong. A four with a gear-driven transfer case is the stronger base for big gearing changes.
- Front-end wearOn the IFS, check idler arm, tie-rod ends and CV boots, and look for a wandering steering feel on the test drive.
- Trim and interior partsMechanical parts are easy; interior and exterior trim isn't. 4Runners.com members report even dealers struggle to supply 2nd gen trim, so a complete truck is worth more than a cheap one missing bits.
The repairs 2nd Gen 4Runner owners end up doing
| REPAIR | SYMPTOMS | DIFFICULTY | TIME | COST |
|---|---|---|---|---|
| 3VZ-E head gaskets | Coolant disappearing with no external leak, white exhaust, overheating, cylinder 6 misfire. 4Runners.com members call blown gaskets almost inevitable on an un-repaired 3VZ-E. | 5 / 5 | Several days; heads usually go to a machine shop | MLS head gasket set ≈ $116 (LC Engineering), plus machining and a timing belt kit |
| 3VZ-E timing belt and water pump | Unknown history, a cracked or glazed belt, a weeping water pump. A snapped belt leaves you stranded. | 4 / 5 | A full day for most | Timing belt kit plus water pump; parts plus labor |
| Exhaust crossover delete (V6) | Not a failure so much as prevention: the crossover pipe that runs behind the engine puts heat into the back of the heads, which 4Runners.com members link to cylinder 6 head-gasket failures. | 3 / 5 | An afternoon, plus exhaust shop time | Kit plus exhaust fabrication |
| Rear coil spring replacement | Rear sitting low, bottoming out loaded, a nose-high stance. | 2 / 5 | An afternoon | OME 2 in coils ≈ $240 per pair (LC Engineering) |
| 22R-E timing chain and guides | A rattle from the front of the engine on start-up, or broken guide pieces in the oil pan. | 3 / 5 | Most of a weekend for a first-timer | Metal-backed guides ≈ $64 (LC Engineering), plus chain, tensioner and gaskets |
| Idler arm and front-end slop | Wandering on the highway, play in the steering, clunks over bumps — worse on bigger tyres. | 2 / 5 | An afternoon | Parts plus labor |
| Power tailgate window that sticks or drops | The roll-down rear glass works only some of the time, stalls part-way or suddenly drops into the tailgate. IH8MUD members flag the electric rear window as a weak point on both early generations; on 2nd gens Toyota-4Runner.org owners blame weak motors, slipping regulator gears and dirty channels. | 2 / 5 | An afternoon | Parts plus labor; one Toyota-4Runner.org member recommends a used motor |
| 4WD won't engage: the ADD vacuum system | The lever goes into 4H with no noise and no front drive. On ADD trucks the hubs are locked all the time and the front axle is only connected when a vacuum-operated collar in the driver's-side axle tube moves (4Runners.com). | 2 / 5 | An hour or two to diagnose | Parts plus labor; vacuum hose is cheap, Aisin manual hubs ≈ $249 a set (LC Engineering) if you convert |
Each repair links to a step-by-step guide with tools, part numbers and where to buy the parts.
Years with known problems
| YEARS | FLAG | WHAT TO KNOW |
|---|---|---|
| 1990–94 | Beware | V6 trucks built 1/90–10/94: Toyota said its 3VZ-E head-gasket failures were primarily limited to this production window (campaign V06, expired 2018). Ask for proof of the gasket job |
Every 2nd Gen 4Runner model year, with the best ones to buy →
2nd Gen 4Runner recalls and service bulletins
- Steering relay rod fatigue crack ↗ 1989–1995 · NHTSA 05V-389Repeated full-lock steering under high effort can crack the steering relay rod.
- 3VZ-E V6 head gasket — Special Service Campaign V06 ↗ · V06 (NHTSA TSB 10145756)Head gasket replacement for 3VZ-E trucks built 1/90–10/94; replaced a 1996 policy adjustment and expired 24 September 2018.
Check any VIN for open recalls at nhtsa.gov/recalls ↗, or see the recall tracker.
Take the printable 2nd Gen 4Runner inspection checklist: every check on this page plus the model-specific ones, on one sheet. Get the checklist →
Sourced from owners, specialists and factory documents; full sources are on the 2nd Gen 4Runner guide. Verify torque figures and procedures against the factory service manual (disclaimer).