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Engine coolingPart report

2007 Toyota 4RUNNER Engine cooling Problems

Complaints
7about this part
Share
5%of 154 total for the year
Median mileage
7,600miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the engine cooling of the 2007 Toyota 4RUNNER, 5% of the 154 complaints for this model year. Where a mileage was given, the median is 7,600 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Vehicle gives off horrible sulfur smell when accelerating quickly and sometimes even when slowly gaining speed after stop and go traffic on a highway. The dealership where I took it said that this is a known problem and there isn't anything they can do about it. Why do other vehicle's I own not do the same thing with the same gas?”

NHTSA complaint #10291606, filed 2009-11, 13,000 miles

“When accelerating anything over babying it the vehicle's exhaust emits a strong sulfur (rotten eggs) odor. Whether the windows are up or down the vehicle is filled with the awful stench. With the windows down it is a much stronger unpleasant odor. P.s. The incident date that I first noticed this was 10 - 11 - 2008, but it will only let me go up to 2007 on the selection. I purchased the vehicle the day before. The vehicle is also a 2008 model, which is also not an option to select.”

NHTSA complaint #10205998, filed 2007-10, 60 miles

“Excessive sulfur/ammonia smell in the cabin during heavy acceleration. Reported issue to Toyota dealer (puente hills Toyota) during service. Dealer stated no TSB's issued for this problem yet, however, stated that this is a known problem with earlier models of Toyota 4 runners. Since Toyota had yet to issue a TSB for this model year, they could not do anything about it.”

NHTSA complaint #10211269, filed 2007-12, 750 miles

“2007 Toyota 4-runner fast idle when cold is 1500 RPM.. When the car is put in gear at that RPM the car launches. This is a serious hazard especially if you don't expect it. It is impossible to get out from between 2 parks card with the engine racing. Dealer will not help - claims the computer has control..”

NHTSA complaint #10178245, filed 2007-01, 2,200 miles

“The contact owns a 1997 Toyota 4runner. The contact was traveling 20 MPH when the check engine light illuminated and moments later, white smoke was expelling from the exhaust pipes. The vehicle was taken to the dealer where the dealer was unable to duplicate the failure. The vehicle was not repaired. The failure mileage was 150,000 and the current mileage was 216,000.”

NHTSA complaint #10360653, filed 2010-10, 150,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202213%
201511%
200929%
200822%
200775%
2006113%
2005102%
2004254%
20038913%
2002125%
2001137%
2000133%
1999155%
1998166%
1997145%
19962516%
199510762%
19942641%
19932039%
19921834%
19912047%
19903849%
1989233%
1988222%
1986225%

Other parts of the 2007 Toyota 4RUNNER

Body and structure
40 complaints
Brakes
29 complaints
Other or unknown
21 complaints
Vehicle speed control
21 complaints
Suspension
14 complaints
Electrical system
13 complaints
Transmission and drivetrain
11 complaints
Visibility (wipers, defrost, mirrors)
10 complaints
Steering
9 complaints
Air bags
6 complaints
Latches, locks and linkages
4 complaints
Engine
3 complaints

← All problems reported for the 2007 Toyota 4RUNNER

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology