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Engine coolingPart report

2000 Hyundai Sonata Engine cooling Problems

Complaints
31about this part
Share
11%of 276 total for the year
Median mileage
72,950miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 31 complaints about the engine cooling of the 2000 Hyundai Sonata, 11% of the 276 complaints for this model year. Where a mileage was given, the median is 72,950 miles. 1 a fire, according to the filers.

Example complaints

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

“Car stalls out in low speed driving, idling, and or when back up. I have been able to avoid an accident with passengers in the vehicle or not in the vehicle while I was driving. I have had oil changed, fluids checked, alternator changed, spark plugs and wires also checked. The car has also had fuel system flushed and problem with stalling persist.”

NHTSA complaint #10251625, filed 2008-12, 81,090 miles

“The crankshaft position sensor is faulty. I don't understand how Hyundai can have a recall for this item in their kia optimas and santa fe 2.5l v-6 engines, but not in the 2.5l v-6 sonatas. The least of the problems is difficulty starting, which seems to be the culmination of the problem. The beginning of the problem is the loss of power and stalling, incredibly dangerous while on the highway traveling at 60 MPH and without warning the car loses power. Last year I spent over $500 for a tune up and spark plug wires. …”

NHTSA complaint #10188447, filed 2007-04, 72,000 miles

“Car began to hesitate during acceleration. Cars have almost hit me from the rear because it happen while I was driving down the street. While driving, the car just cutoff in the middle of the street and never started again.”

NHTSA complaint #10072553, filed 2004-05, 117,000 miles

“I was traveling down the highway when without warning my engine simply shut off, and the power assist to the brakes and steering was stopped. I tried moving from the center lane over to the shoulder and was almost rear-ended by a vehicle in the right lane. I was able to pull the car off on the right shoulder and stop. The vehicle would not restart and I had to have it towed to the nearest dealer in the area, pugi Hyundai in downers grove, il. They took the vehicle in for service and later in the morning informed me that the crankshaft position sensor had failed. …”

NHTSA complaint #10164028, filed 2006-07, 74,400 miles

“I have made five trips to the dealer with the same problem with my 2000 Hyundai Sonata which was purchased from allen turner Hyundai in pensacola, fl and is serviced by them due to it is still in warranty. My car makes a loud clonking sound and then stops and all power goes off. This happens normally when I go over 30-40 MPH and has happened while driving 70 on the interstate and almost caused me to wreck on a bridge because I had no shoulder to go off on and cars almost slammed into the back of me. After it shuts down, it takes anywhere from 10 minutes to one hour to start again. …”

NHTSA complaint #10120775, filed 2005-05, 49,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202322%
202111%
201985%
2018144%
2017192%
2016172%
2015212%
2014213%
2013402%
2012111%
2011451%
200961%
200820%
200781%
2006303%
200553%
200452%
2003147%
2002165%
20012311%
20003111%
19992319%
199848%
1997714%
1996626%
1995914%
1993935%
1992418%
1991621%
1989545%

Other parts of the 2000 Hyundai Sonata

Body and structure
109 complaints
Suspension
64 complaints
Air bags
43 complaints
Electrical system
37 complaints
Transmission and drivetrain
19 complaints
Brakes
12 complaints
Steering
8 complaints
Vehicle speed control
7 complaints
Visibility (wipers, defrost, mirrors)
6 complaints
Wheels
6 complaints
Seat belts
5 complaints
Tires
5 complaints

← All problems reported for the 2000 Hyundai Sonata

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