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Engine coolingPart report

2000 Pontiac Sunfire Engine cooling Problems

Complaints
25about this part
Share
26%of 96 total for the year
Median mileage
47,425miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 25 complaints about the engine cooling of the 2000 Pontiac Sunfire, 26% of the 96 complaints for this model year. Where a mileage was given, the median is 47,425 miles.

Example complaints

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

“I own a 2000 Pontiac Sunfire and the car shuts off while driving at 60-65 MPH. Car has been taken to the Pontiac dealer, they have not been able to find anything wrong with the vehicle, also left the vehicle with another mechanic who drove the car for a couple of days but it did not shut off. I am concerned because I was driving on the highway in the fast lane and the car just decelerated and stopped.”

NHTSA complaint #10010244, filed 2003-03, 65 miles

“I have a problem and I dont know where to go for answers on my car. I have a 2000 Pontiac Sunfire...we have had no problems at all with it till I took it in last week for inspection. They told me it needed, brakes and rotors and 2 new tires.......then the day I got it, it left me stranded along the road, the temp gauge kept going passed 265 and the check gauges light kept coming on and I had to let the car sit. …”

NHTSA complaint #10004903, filed 2003-01, 39,000 miles

“The consumer applied the brakes and the pedal went to the floor. The vehicle slowed down on its on. The consumer was able to control the vehicle. The driver was able to drive it to dealer. The mechanic informed the driver that the problem could not be duplicate. The engine light appeared on the dashboard and remained. There was leaking boiling under the dash on both sides.”

NHTSA complaint #10091503, filed 2004-09, 35,000 miles

“While driving 60 MPH the vehicle stalled and the driver lost power steering. The consumer managed to pull over to side of road. The vehicle was towed to the dealer but they have not been able to resolve the problem.”

NHTSA complaint #10038403, filed 2003-09, 85,000 miles

“The vehicle experienced a knocking noise. There was not warning. (engine or oil light) the vehicle wasn't low of oil and was changed regularly. The vehicle never made a knocking noise before. Scc”

NHTSA complaint #10011531, filed 2003-03, 97,842 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
200523%
2004413%
2003811%
20021113%
20011218%
20002526%
19991718%
19983227%
19973116%
19963919%
19953832%

Other parts of the 2000 Pontiac Sunfire

Electrical system
23 complaints
Brakes
17 complaints
Fuel system
16 complaints
Exterior lighting
10 complaints
Transmission and drivetrain
10 complaints
Air bags
9 complaints
Equipment
9 complaints
Steering
5 complaints
Visibility (wipers, defrost, mirrors)
5 complaints
Seat belts
4 complaints
Vehicle speed control
4 complaints
Suspension
3 complaints

← All problems reported for the 2000 Pontiac Sunfire

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