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full bulletin at NHTSA ↗2007 Toyota Sequoia engine problems
moderate 13 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
13
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 13 engine complaints filed for the 2007 Toyota Sequoia, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Among the 6 model years of Toyota Sequoia in our records for engine problems, this one ranks #2 by owner-complaint volume.
No new NHTSA engine complaint has been filed on this vehicle in over 5 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine 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.
TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Service Bulletin No. T-SB-0012-13 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated
full bulletin at NHTSA ↗TSB: Supersession Notice. Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information.
full bulletin at NHTSA ↗TT: THE VEHICLE MAY BE DIFFICULT TO START OR HAVE AN ABNORMALLY LOW OR ROUGH IDLE AFTER THE BATTERY HAS BEEN DISCONNECTED OR POWER TO THE ENGINE ECM HAS BEEN INTERRUPTED.
full bulletin at NHTSA ↗TT: The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power to the Engine ECM has been interrupted.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report the secondary air injection system as the dominant defect across this cluster. The pump makes a loud vacuum noise on cold start, typically lasting 10–20 seconds before subsiding, though it can reappear intermittently. Multiple diagnostic codes (P1445, P2440) trigger the check engine light along with VSC and Trac lights. Once the codes set, acceleration suffers—owners cannot exceed 65 mph and struggle to merge on freeways. Repair costs run $2,000–$3,000 per owner reports.
Toyota extended warranty and reimbursement for this defect on 2008–2010 Sequoia and Tundra models but explicitly excluded the 2007 Sequoia, despite owners noting the same engine and components. Mechanics report seeing this issue repeatedly and some advise owners to skip the repair because the vehicle remains driveable, though acceleration and emissions remain compromised.
Beyond the injection system, owners report engine stalling at highway speeds with simultaneous loss of power steering and braking assist, creating immediate hazard. One complaint documents a broken intake valve spring at 68,000 miles; another describes an A/C compressor freeze-up that caused stalling at a traffic light, requiring $1,700 replacement outside warranty. A separate complaint alleges exhaust fumes leaking into the cabin during acceleration and when the A/C recirculates, causing nausea, headaches, and drowsiness in passengers.
Same Toyota Sequoia engine reports on nearby years: 2005 · 2006 · 2010
Failure modes owners describe
Secondary Air Injection Pump/System Failure
The secondary air injection pump and related components (switching valves, intake pump assembly) fail, causing loud vacuum/pump noises on cold start and generating multiple diagnostic codes. The failure cascades into reduced engine performance, acceleration loss, and inability to pass emissions testing.
When: Cold start; occurs between 42,000 and 136,000 miles depending on vehicle; noise typically lasts 10-20 seconds after startup, subsides after ~30 seconds of operation
Symptoms owners cite: Loud vacuum or pump noise on cold start; Check engine light illuminates; VSC (Vehicle Stability Control) and Trac lights come on; Reduced acceleration, unable to exceed 65 mph; Vehicle struggles to merge or pass on freeway; Requires California smog test retest due to engine light; Noise may reappear intermittently during operation
Repairs/costs cited: Replacement of secondary air injection pump assembly reported at $2,000–$3,000. Toyota issued partial reimbursement program for 2008–2010 Sequoia and Tundra but excluded 2007 Sequoia. Third-party bypass kits available for a few hundred dollars as cost-effective alternative.
Recalls/TSBs owners mention: Toyota issued reimbursement and extended warranty for 2008–2010 Sequoia and Tundra secondary air injection system defects. 2007 Sequoia models explicitly excluded from program despite identical engine and components. Technical Service Bulletin (TSB) 0230 12 referenced in at least one complaint.
Engine Stalling with Loss of Steering Assist
Engine stalls while driving at highway speeds without warning. Loss of power steering and braking assist occurs simultaneously, forcing the driver to manually steer the vehicle to safety. Poses immediate hazard on busy roadways.
When: At highway speeds (45 mph reported); mileage approximately 118,000 miles in one case
Symptoms owners cite: Engine stalls suddenly while driving; Check engine light flashes; Loss of power steering assist; Loss of braking assist; Vehicle cannot be restarted immediately
Repairs/costs cited: One complaint diagnosed with defective spring valve; repair not completed. No parts costs reported.
A/C System Freeze-Up Causing Engine Stall
Air conditioning system freezes unexpectedly, causing the engine to shudder and stall at a traffic light. A/C compressor replacement required; failure occurs without prior warning signs despite normal prior A/C operation.
When: Approximately 42,000 miles
Symptoms owners cite: A/C light blinks; Engine shudders; Engine stalls at traffic light; A/C system freezes
Repairs/costs cited: A/C compressor replacement cost over $1,700; not covered under warranty.
Violent Jerking and Hesitation During Braking/Acceleration
Vehicle violently jerks when approaching a stop with foot on brake, and hesitates when accelerating from a complete stop. Defect persists through multiple dealer visits and part replacements.
When: At 74,625 miles
Symptoms owners cite: Violent jerking when braking/approaching a stop; Hesitation when accelerating from complete stop; Rough running
Repairs/costs cited: Engine rear mount and cross member replaced; failure continued despite repairs.
Broken Intake Valve Spring
Intake valve spring breaks during highway driving, causing severe vibration and engine stall. Loss of steering and braking assist occurs. Vehicle stranded on roadway, unable to restart.
When: At 68,000 miles
Symptoms owners cite: Harsh vibration while driving on highway; Engine stalls; Loss of steering assist; Loss of braking assist; Engine will not restart
Repairs/costs cited: Broken intake valve spring repair described as costly for a vehicle at 68,000 miles.
Exhaust Fume Leakage into Cabin
Strong exhaust odor accumulates in the vehicle cabin during acceleration, deceleration, and when A/C is in recirculate mode. Odor causes nausea, headaches, sleepiness, and cognitive impairment in passengers. Dealer refuses investigation without official notice of defect.
When: Developed over 2-month period; vehicle had 24,000 miles at time of complaint
Symptoms owners cite: Strong exhaust fume odor in cabin; Odor intensifies during acceleration; Odor intensifies during deceleration from passing; Odor stronger with A/C on and in recirculate mode; Nausea in passengers; Headaches in passengers; Sleepiness/drowsiness in driver and passengers; Cognitive impairment reported
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Tl* the contact owns a 2007 Toyota sequoia. The contact stated that while driving 45 MPH, the vehicle stalled with the check engine warning light flashing on the instrument panel. Due to the failure, excessive force was needed to steer the vehicle to the side of the road as the steering also failed to operate due to the failure. The vehicle was towed to an independent mechanic where the vehicle…
Had engine trouble with your 2007 Toyota Sequoia?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2007 Toyota Sequoia?
It's a documented issue but not catastrophic. 13 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 11 complaints that reported odometer mileage, most engine failures cluster between 42,000 and 198,000 miles, with the median around 118,000. A quarter of owners report trouble before 42,000; a quarter make it past 198,000. 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 $3,100 for engine 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 engine?
No active recalls currently cover engine 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.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2007/Toyota/Sequoia.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.