The 1998 RAV4 with the 2.0L 3S-FE engine is generally reliable but shares the infamous head gasket weakness of this engine family. Automatic transmission cooling and ignition system issues are the other major watch points on higher-mileage examples.
Cylinder Head Gasket Failure (3S-FE Engine)
Common · high severity
Typical onset: 100,000-150,000 mi
Symptoms: White smoke from exhaust on cold start, Coolant loss with no visible leaks, Overheating or erratic temperature gauge behavior, Milky oil cap residue or chocolate milk on dipstick, Rough idle or misfire after warm-up
Fix: Head gasket replacement requires removing intake/exhaust manifolds, timing belt, and resurfacing the head if warped. Often done preventively with timing belt service. 8-12 hours labor. Always replace timing belt, water pump, and thermostat while in there.
Estimated cost: $1,200-2,200
Automatic Transmission Oil Cooler Line Corrosion and Leaks
Common · medium severity
Typical onset: 80,000-140,000 mi
Symptoms: Transmission fluid spots under vehicle near radiator, Pink residue around cooler line fittings at radiator, Low transmission fluid level causing delayed engagement, Burnt smell if driven low on fluid
Fix: Steel cooler lines rust through where they connect to the radiator or along their routing. Replace both lines as a set (they're cheap). If neglected and trans runs low, internal damage occurs. 2-3 hours labor for line replacement only.
Estimated cost: $250-450
Ignition Control Module (Igniter) Failure
Occasional · high severity
Symptoms: No-start condition with cranking but no spark, Intermittent stalling when hot, restarts when cool, Engine dies while driving with no warning, Check engine light may or may not appear
Fix: The igniter (mounted on distributor or near coil packs depending on sub-model) fails from heat cycling. Part is $150-300, diagnosis can be tricky as it's intermittent. 1-2 hours labor including testing. NHTSA recalls addressed some theft-deterrent module issues but mechanical igniter failure still occurs.
Estimated cost: $250-500
Rear Differential Pinion Seal and Output Shaft Seal Leaks (AWD)
Common · low severity
Typical onset: 90,000-160,000 mi
Symptoms: Gear oil drips on garage floor under rear differential, Oil visible on differential housing or driveshaft, Whining noise from rear if driven low on fluid
Fix: Pinion seal at driveshaft entrance leaks from age and heat cycles. Output seals at axle shafts also weep. Seal replacement requires differential removal or at minimum driveshaft removal and pinion nut torque reset. 3-4 hours labor. Not urgent but don't ignore it.
Estimated cost: $400-700
Oxygen Sensor Deterioration and Check Engine Light
Common · low severity
Typical onset: 120,000-180,000 mi
Symptoms: Check engine light with P0136 or P0141 codes (rear O2 sensor), Slight reduction in fuel economy, Failed emissions testing
Fix: The downstream (post-cat) O2 sensor fails from age and exhaust heat. Easy DIY job with penetrating oil and an O2 sensor socket. 0.5-1 hour labor. Upstream sensor can also fail but less common on this year.
Estimated cost: $150-300
Transmission Mount Collapse
Occasional · medium severity
Typical onset: 100,000-180,000 mi
Symptoms: Clunk or thud when shifting from Park to Drive or Reverse, Excessive engine movement visible when revving in Park, Vibration through shifter or center console
Fix: Rear transmission mount (dogbone style) rubber deteriorates and tears. Causes drivetrain to shift excessively. Replacement requires supporting transmission and unbolting mount. 1.5-2 hours labor. Inspect all engine mounts at same time.
Estimated cost: $200-400
Owner tips
Change transmission fluid every 30,000 mi with Toyota Type T-IV to extend trans life—these don't respond well to 'lifetime' fluid claims
Inspect coolant regularly for oil contamination; catch head gasket failure early before it warps the head
Use OEM or quality ignition components—cheap aftermarket distributors and igniters cause more problems than they solve
If buying used, check for evidence of head gasket work already done—it's almost a maintenance item on high-mile 3S-FE engines
Buy one if the head gasket has already been done or you budget for it; otherwise a solid platform that rewards basic maintenance with 250k+ mile potential.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE · 20V033000
2020-01-22 · EQ19002
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 1998-2000 RAV4, 1998-1999 RAV4 EV and Celica and 1997-1998 Supra vehicles. These vehicles were equipped with Non-Azide Driver air bag Inflators (NADI) and do not contain phase stabilized ammonium nitrate (PSAN) propellant. Due to a manufacturing issue, the NADI inflators may absorb moisture, causing the inflators to rupture or the air bag cushion to underinflate.
Consequence: In the event of a crash necessitating air bag deployment, an inflator rupture may result in metal fragments striking the driver or other occupants. An underinflated air bag may not properly protect the occupant, and increases the risk of serious injury or death.
Remedy: Toyota will notify owners, and owners will have the option to self-inspect, or have a dealer inspect the steering wheel on their vehicle to determine if their vehicle may be equipped with an affected inflator. Potentially affected steering wheel serial numbers will be inspected by a dealer. Based on the inspection, dealers will replace the front driver air bag inflator with an alternate one, as necessary. These repairs will be performed free of charge. The recall began August 28, 2020. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's numbers for this recall is 20TB01 and 20TA01.
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH · 00V211000
2000-08-09
VEHICLE DESCRIPTION: SPORT UTILITY ELECTRIC VEHICLES. IF THE SUBJECT VEHICLES ARE REPEATEDLY PARKED BY PLACING THE SHIFT LEVER INTO THE "P" POSITION WITHOUT APPLYING THE PARKING BRAKE, THE PARKING LOCK ROD, A COMPONENT OF THE TRANSMISSION PARKING LOCK SYSTEM, COULD BREAK.
Consequence: THIS CONDITION CAN RENDER THE SYSTEM INOPERATIVE, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE PARKING LOCK ROD.
SERVICE BRAKES, AIR:DISC:ROTOR · 00V212000
2000-08-09
VEHICLE DESCRIPTION: SPORT UTILITY ELECTRIC VEHICLES. THE FRONT DISC BRAKE ROTOR, WHEN EQUIPPED WITH STEEL WHEELS, CAN DEVELOP STRESS FRACTURES IF THE LUG NUTS ARE TIGHTENED WITH EXCESSIVE TORQUE.
Consequence: THE DISC ROTOR COULD BREAK (WHERE IT MOUNTS TO THE WHEEL), RESULTING IN A LOSS OF BRAKING ACTION ON THAT WHEEL, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE DISC BRAKE ROTORS. IF THE VEHICLE IS EQUIPPED WITH STEEL WHEELS, TOYOTA WILL REPLACE THE FRONT DISC BRAKE ROTORS AND STEEL WHEELS WITH NEW DISC BRAKE ROTORS AND NEW ALUMINUM WHEELS. IN ADDITION A CAUTION LABEL THAT READS, "USE NEW GENUINE TOYOTA ALUMINUM WHEELS." WILL BE AFFIXED. VEHICLES ALREADY EQUIPPED WITH ALUMINUM WHEELS WILL ONLY REQUIRE CAUTION LABEL INSTALLATION.
EQUIPMENT DESCRIPTION: AFTERMARKET THEFT DETERRENT SYSTEMS USED ON 1998-1998 TOYOTA RAV4, AVALON, AND SIENNA MODEL VEHICLES DISTRIBUTED BY SOUTHEAST TOYOTA DISTRIBUTORS, INC. IN THE STATES OF ALABAMA, FLORIDA, GEORGIA, NORTH AND SOUTH CAROLINA. THE ALARM WIRING HARNESS PLUGS INTO THE VEHICLE'S IGNITION SWITCH AND THE VEHICLE'S IGNITION SWITCH WIRING HARNESS PLUGS INTO THE ALARM HARNESS TO COMPLETE THE CIRCUIT. A PERCENTAGE OF THE FEMALE TERMINALS USED IN THE ALARM CONNECTOR WERE FOUND TO BE DEFECTIVE, CAUSING AN "OPEN CIRCUIT" CONDITION WHEN MATED TO THE MALE IGNITION SWITCH TERMINALS.
Consequence: THIS CONDITION CAN CAUSE INTERMITTENT PERFORMANCE OF THE VEHICLE'S ELECTRICAL COMPONENTS SUCH AS THE DASH WARNING LIGHTS AND/OR HVAC FAN SPEED CONTROLS. ALSO, THE VEHICLE MAY NOT RUN SMOOTHLY AND COULD STALL.
Remedy: DEALERS WILL INSPECT THE DATE CODE LABEL ON THE SECURITY SYSTEM HARNESS AND ANY DISPLAYING THE MANUFACTURING/FINAL DATE CODE WILL BE REPLACED WITH NEWLY PRODUCED HARNESSES. THE DATE CODES ARE: RAV4 - 6/24/98, 6/25/98, 6/26/98; SIENNA - 6/25/98, 6/26/98; AND AVALON - 6/30/98, 7/1/98, 8/31/98, 9/1/98, 9/2/98, AND 9/3/98.
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES, MINI VANS AND PASSENGER VEHICLES EQUIPPED WITH A THEFT DETERRENT SYSTEMS (TDS) SUPPLIED BY AUDIOVOX CORPORATION AND DISTRIBUTED BY SOUTHEAST TOYOTA DISTRIBUTORS, INC. IN THE STATES OF ALABAMA, FLORIDA, GEORGIA, NORTH AND SOUTH CAROLINA. THE ALARM WIRING HARNESS PLUGS INTO THE VEHICLE'S IGNITION SWITCH AND THE VEHICLE'S IGNITION SWITCH WIRING HARNESS PLUGS INTO THE ALARM HARNESS TO COMPLETE THE CIRCUIT. A PERCENTAGE OF THE FEMALE TERMINALS USED IN THE ALARM CONNECTOR WERE FOUND TO BE DEFECTIVE, CAUSING AN 'OPEN CIRCUIT' CONDITION WHEN MATED TO THE MALE IGNITION SWITCH TERMINALS.
Consequence: THIS CONDITION CAN CAUSE INTERMITTENT PERFORMANCE OF THE VEHICLE'S ELECTRICAL COMPONENTS SUCH AS THE DASH WARNING LIGHTS AND/OR HVAC FAN SPEED CONTROLS. ALSO, THE VEHICLE MAY NOT RUN SMOOTHLY AND COULD STALL.
Remedy: DEALERS WILL INSPECT THE DATE CODE LABEL ON THE SECURITY SYSTEM HARNESS AND ANY DISPLAYING THE MANUFACTURING/FINAL DATE CODE WILL BE REPLACED WITH NEWLY PRODUCED HARNESSES. THE DATE CODES ARE: RAV4 - 6/24/98, 6/25/98, 6/26/98; SIENNA - 6/25/98, 6/26/98; AND AVALON - 6/30/98, 7/1/98, 8/31/98, 9/1/98, 9/2/98, AND 9/3/98.
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