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1990–1995 Toyota 4Runner · 22RE Engine
22RE Engine
The four-cylinder that outlives the truck around it. Guides for keeping it that way.
The 22RE is under-powered and over-built, and most of what goes wrong with it is well understood: timing chain guides, the hydraulic tensioner, the cooling system, the idle circuit. The guides below are the ones people search for at two in the morning with the hood up. The parts list is short because the engine doesn't need much — but what it needs, it needs done right.
Parts
At a glance: fitment, price & shipping
| Part | Fits | Price | Shipping (lower 48) | Build time | Returns |
|---|---|---|---|---|---|
| Power steering idle-up valve delete kit | 1990–1995 | $29.99 | $5.99 | Not listed | 30-day returns |
“Not listed” means the product page doesn’t give a build time — email us for the current estimate before you order. Every figure comes from the product page itself.
Not sure it fits your truck? Email us before you order · Tracked US shipping — shipping & build times · Returns & 7-day limited warranty
Guides
22RE Timing Chain Replacement Interval: When, Why, and the RattleThe 22RE timing chain interval is 90,000-100,000 miles. Why the guides break, how the tensioner fails, and what the cold-start rattle is telling you.22RE vs. 3VZE: Which 2nd Gen 4Runner Engine Is Better?Four cylinders and forever, or six cylinders and head gaskets? The straight comparison between the 22RE and 3VZE, and which one you actually want.Rebuilding a 22RE: When It’s Worth It, When It Isn’tWhen a 22RE actually needs a rebuild vs a refresh: compression truth, piston slap, the head gasket question, and where rebuild money really goes. 90-95 4Runner.22RE Coolant Pipes: The Hidden Steel That Kills EnginesThe 22RE’s steel coolant pipes and heater lines corrode from the inside out. Where they hide, how they fail, the o-ring trick, and replacing them for good. 90-95.22RE EGR Cooler: The Carbon-Choked Part Nobody ChecksSomewhere between your 22RE's exhaust manifold and intake sits a part most owners have never touched: the EGR cooler.22RE Exhaust Manifold Crack: The Tick That Fades WarmThe 22RE exhaust manifold cracks — here’s the cold-start tick that identifies it, why studs snap, and how to replace it without a broken-bolt nightmare. 90-95.Boosting a 22RE: Turbo vs Supercharger, From ExperienceTurbocharging or supercharging a 22RE: what boost actually does to Toyota’s 2.4, why fuel supply decides the project, and the honest limits. 1990-1995 4Runner.22RE Idle Speed: How to Adjust It (and When Not To)Setting 22RE idle speed the right way, why the screw is the last step not the first, and the vacuum leaks and sensors that fake a bad idle. 90-95 4Runner.22RE Oil Pump: Low Pressure, Read Before You ReplaceLow oil pressure on a 22RE: what the gauge is really telling you, when it’s the sender vs the pump, and why the pump job pairs with the timing cover. 90-95.22RE Valve Adjustment: The Tappet Tick, CuredThat sewing-machine tick from your 22RE is valves asking for adjustment. Why the 22RE needs it, what the tick means, and the patient shim-and-feeler job. 90-95.How Many Miles Will a 95 4Runner Last? 300,000+A well-kept 90-95 4Runner runs past 300,000 miles. What actually kills them first: the 3VZ-E head gasket, the 22R-E timing chain, cooling, fluids and rust.Stop the Leak! The Toyota 3VZ/22RE Power Steering delete kit!Stop the Leak: The Ultimate Guide to the Toyota 3VZ/22RE Power Steering Idle Up Valve Delete kit. 2nd Gen 4Runner Builds: Off-Roading Adventures Await!2nd Gen 4Runner Smog Check Guide: OBD1 Testing, EGR Mods & What FailsOBD1 testing, the visual/functional check, and the real reasons a 2nd gen 4Runner fails smog — plus which states exempt trucks this old.2nd Gen 4Runner Motor Mounts: The Clunk and the ShakeCollapsed motor mounts cause the clunk on takeoff and the shake at idle in a 90-95 4Runner. How to test them in your driveway and replace them safely.300,000k Dream: Your Guide to Making a 2nd Gen T4R Bulletproof.In a world of five-figure car payments and disposable plastic appliances, the idea of relying on a 30-year-old truck for your daily commute seems, to…Best. 2nd gen 4runner mods! ELECTRONIC IDLE UP!!Toyota 4Runner Electronic Idle Up Mod: A Game-Changer for Manual Transmission Owners The second-generation Toyota 4Runner.Keeping Your 2nd Gen Toyota 4Runner Cool: Zerex asian coolant.Keeping Your 2nd Gen Toyota 4Runner Cool: Exploring the Best Engine CoolantsPower Steering Idle Up Valve Delete Kit. Best 2nd gen 4runner modPower Steering Idle Up Valve Delete Kit - The Essential Toyota 4Runner Vacuum System UpgradeThe Best Oil Filter for Your 2nd Gen 4Runner.Unveiling the Best Oil Filter for Your 2nd Gen 4Runner: The OEM Filter with Part Number 90915-YZZD1The Perfect Engine Oil for Your 2nd Gen Toyota 4RunnerThe Perfect Engine Oil for Your 2nd Gen Toyota 4Runner: Shell Rotella T4 10W30The Vital Role of Upgrading the Radiator in Your 2nd Gen 4Runner.The Crucial Role of Upgrading the Radiator in Your 2nd Generation Toyota 4Runner: Why Mishimoto Aluminum Radiators Are a Game-ChangerTicking Time Bomb in Your Engine Bay: 2nd Gen 4Runner Cooling.For the owner of a 2nd generation Toyota 4Runner, the temperature gauge is more than just a dial on the dashboard; it's a source of constant, low-grade…Toyota 4Runner (90-95) The DIY guide for preventative maintenanceCommon Problems and DIY Fixes for Your Second Generation Toyota 4Runner: A Comprehensive Guide If you're the proud owner of a second-generation.
Questions
When should the timing chain be replaced?
90,000–100,000 miles. The plastic guides wear and the hydraulic tensioner slowly starts to fail over time. Proper oil changes help prevent that. The timing chain guide below has the full picture.
Is the 22RE turbo-able?
People do it. The forced-induction guide below is honest about what it takes and what breaks.