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Engine coolingPart report

2001 Toyota 4RUNNER Engine cooling Problems

Complaints
13about this part
Share
7%of 185 total for the year
Median mileage
112,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 13 complaints about the engine cooling of the 2001 Toyota 4RUNNER, 7% of the 185 complaints for this model year. Where a mileage was given, the median is 112,000 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.

“After I my mechanic replaced the catalytic converter for $1500.00, this problem began. The vehicle began to buck (jerk violently) as I was accelerating to 45 MPH. It always happens at about 20 MPH as I try to accelerate to 30, 35 or 40 MPH. The engine revs up to 3 of 4k before the transmissions engages forcefully. This has been going on for now 3 months.”

NHTSA complaint #10485031, filed 2012-11, 132,500 miles

“Vehicle stalled without warning. The engine problem only occurred after making a complete stop. When the accelerator is depressed, the vehicle would only accelerate approximately 6 MPH and last about 4-10 seconds. Neither dealer could find the problem. Scc”

NHTSA complaint #10015514, filed 2003-04, 1,000 miles

“While driving the oil warning light illuminated. This caused the vehicle to stall. Vehicle was towed. Dealership informed the consumer of the cam shaft failure. The problem was not resolved. Consumer has written 5 letters, to Toyota, attorney general of md,USA (2), attorney general of md (1) and service manager at Toyota of glen burnie. When the engine stopped the vehicle kept coasting then the wheels locked up. The consumer added oil but it came out onto the pavement. The vehicle was towed to the dealer. …”

NHTSA complaint #10113353, filed 2005-04, 112,000 miles

“I drive highway 90% of the time and then 10% on city street. I was told by greenville Toyota that my catalytic converter needed to be replaced. I was quoted $1,070.00.00. I have a 2001 Toyota 4runner, 2wd, sr5. I have been told that these don't die this soon. Is there a recall?”

NHTSA complaint #10143950, filed 2005-11

“The contact owns a 2001 Toyota 4runner. While driving approximately 25 MPH, she noticed a noise and the vehicle would not accelerate. The vehicle was towed to the dealer who stated that the motor was the root of the failure; however, they didn't provide an explanation why the failure occurred. The dealer offered a $5,000 rebuilt motor at the owners expense. The vehicle has not been repaired. The manufacturer was not notified. The VIN was unavailable. The current and failure mileages were approximately 67,000.”

NHTSA complaint #10252226, filed 2008-12, 67,000 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 2001 Toyota 4RUNNER

Body and structure
81 complaints
Transmission and drivetrain
32 complaints
Suspension
27 complaints
Other or unknown
25 complaints
Brakes
9 complaints
Steering
8 complaints
Tires
7 complaints
Air bags
6 complaints
Electrical system
6 complaints
Engine
5 complaints
Vehicle speed control
5 complaints
Electronic stability control
3 complaints

← All problems reported for the 2001 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