TOYOTA: MIL ON; FUEL IN EVAP SYSTEM. SOME VEHICLES MAY EXHIBIT ONE OR MORE OF THE FOLLOWING CONDITIONS DUE TO FUEL IN THE EVAP SYSTEMS: MIL ON WITH THE FOLLOWING DTCS STORED: P043E, P043F, P2401, P2401, AND P2419; INTERMITTENT ROUGH IDLE WHEN AT OPERATING TEMPERATURE. UPDATED 6/30/11.
full bulletin at NHTSA ↗2006 Toyota RAV4 fuel system problems
severe 14 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →
Among the 7 model years of Toyota RAV4 in our records for fuel system problems, this one ranks #2 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Multiple owners describe dangerous acceleration problems ranging from complete loss of braking control to hesitation lag. One owner reported her brakes failed entirely after leaving a parking lot, forcing her to use the hand brake to stop after hitting another vehicle and a concrete pole; the dealer found nothing wrong. Several others experience up to two-second delays between pressing the gas and engine response, plus stumbling or bogging during acceleration—dangerous when merging traffic. Owners with V6 engines report a VVT-i oil hose that ruptured during normal driving, filling the engine bay with smoke.
The bigger design flaw: 2006 RAV4s lack a protective shield on the fuel evap canister that Toyota added to 2007+ models. In light snow or wet conditions, the unshielded canister's tube fittings break, water enters, and the whole system fails—which cascades to shut off stability control, traction control, and cruise control. This is so common that dealers acknowledge it. Repair bills for canister replacement run $700 to $2,000, often outside factory warranty. One owner reported excessive oil consumption starting at 73,000 miles with a potential $3,000 engine teardown needed. Another's fuel tank ruptured, requiring a $715 replacement.
Failure modes owners describe
Unintended acceleration
Vehicle accelerates beyond driver control despite brake application. One complaint describes sudden high-speed acceleration after parking-lot departure; brake pedal fully depressed did not slow or stop the vehicle. Driver eventually used hand brake to stop. Similar incidents reported by multiple owners with delayed or sudden acceleration.
When: Various mileages; incidents during normal driving, acceleration from stop, or traffic merging
Symptoms owners cite: Vehicle accelerates faster than intended or with no pedal input; Brake pedal fully depressed does not stop vehicle; Hesitation followed by sudden rapid acceleration; Dangerous delay during traffic merging and acceleration
Recalls/TSBs owners mention: One dealer checked vehicle and declared all systems within factory specifications; no formal recall or TSB cited for unintended acceleration
Throttle hesitation and sluggish response
Engine does not respond promptly to accelerator pedal input. Delay of up to a couple seconds before engine revs and vehicle accelerates. Stumbling or bogging occurs during normal acceleration and when attempting to accelerate from already-moving vehicle. One owner suspects drive-by-wire sensor failure.
When: Throughout ownership; multiple owners report chronic issue from new vehicle
Symptoms owners cite: Up to 2-second delay from pedal input to acceleration; Engine stumbles and bogs when accelerator applied during motion; Requires quick pedal depression to trigger response; Occurs consistently during normal acceleration scenarios
Repairs/costs cited: One owner speculates gas pedal drive-by-wire sensors may be failing
VVT-i oil hose failure with engine compartment smoke
Oil hose in variable valve timing intake system ruptures or bursts, releasing hot oil into engine compartment and creating smoke. Toyota Sunnyvale dealer used term 'exploded' to describe failure. Occurs during normal driving. Owner notes Toyota had issued a Limited Service Campaign (LSC) in 2010 for certain 2006-2009 RAV4 V6 models, but owner's vehicle not covered despite experiencing same defect.
When: During normal driving (grocery shopping trip)
Symptoms owners cite: Smoke from engine compartment; Hot oil spray or leak from VVT-i hose
Recalls/TSBs owners mention: Toyota issued Limited Service Campaign (LSC) Phase 1, 2, and 3 starting 2010 for certain 2006-2009 RAV4 V6 models with 2GR-FE engine; approximately 89,000 RAV4 V6 (2007-2009) covered in Phase 3; however, complainant's 2006 model not covered
Charcoal canister and fuel evap system failures
Charcoal canister and fuel evaporation filter tube fittings rupture, allowing water ingress and canister failure. Failures occur with minimal driving in light snow or wet conditions. Damage to canister triggers cascading failure of vehicle stability control, traction control, and cruise control systems. Defect appears to stem from inadequate protection of canister; dealer noted 2007 and later models include protective shield while 2006 lacks it.
When: After driving approximately 1 mile in light snow or wet conditions; at various mileages including 65,000+ miles
Symptoms owners cite: Vehicle stability control shuts off; Traction control shuts off; Cruise control shuts off; Warning lights illuminate on instrument cluster; Fuel evap filter tube fitting breaks; Water enters fuel evap system
Repairs/costs cited: Charcoal canister replacement cost reported as $700 to $2,000; one owner reported Toyota dealer acknowledged this is a common issue; tech noted 2007+ models have protective shield that 2006 lacks
Recalls/TSBs owners mention: Toyota issued Limited Service Campaign (LSC) for certain 2006-2009 RAV4 models; extended warranty coverage eventually provided by dealers after owner insistence; some repairs covered under extended warranty, others outside 3-year/36,000-mile factory warranty
Excessive oil consumption
Engine consumes oil faster than normal rate. Oil pressure warning light illuminates at moderate mileage. Dealer diagnosis indicates abnormal consumption but problem not fully identified. Owner indicates potential engine teardown required to pinpoint exact cause. Extended warranty expired before issue became critical.
When: Oil pressure warning first at 73,050 miles; recurred at 81,950 miles (1,200 miles after topping off); extended warranty expired at 75,000 miles
Symptoms owners cite: Oil pressure warning light illumination; Rapid oil level depletion
Repairs/costs cited: Dealer topped off oil; estimated cost for complete diagnosis and teardown approximately $3,000
Fuel tank rupture with gasoline leak
Fuel tank develops rupture or failure, causing gasoline to drip heavily from underneath vehicle. Requires complete fuel tank replacement.
When: At approximately 76,000+ miles (based on complaint date context)
Symptoms owners cite: Heavy gasoline dripping from underneath vehicle
Repairs/costs cited: Fuel tank replacement cost $715
Engine fire post-crash
Vehicle caught fire while occupants were still inside after being involved in a crash. Two occupants were killed.
When: During or immediately after crash
Symptoms owners cite: Engine compartment fire
Synthesized from 14 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Common questions
How serious is the fuel system problem on the 2006 Toyota RAV4?
It's a meaningful issue. 14 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,200.
At what mileage does the fuel system typically fail?
Across the 11 complaints that reported odometer mileage, most fuel system failures cluster between 38,500 and 70,000 miles, with the median around 54,797. A quarter of owners report trouble before 38,500; a quarter make it past 70,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.