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Engine coolingPart report

1999 GMC Safari Engine cooling Problems

Complaints
6about this part
Share
10%of 61 total for the year
Median mileage
26,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine cooling of the 1999 GMC Safari, 10% of the 61 complaints for this model year. Where a mileage was given, the median is 26,000 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.

“Red engine light came on transmission was jumping into gear, with 26,000 miles, took to dealer they found nothing wrong. Took trip to florida red light came on took to aamco transmission (36,000 mi) found problem,850$, said this was common with this vehicle. Gmc paid me half, going to court with dealer for other half. My warranty was over due to years.”

NHTSA complaint #10021337, filed 2003-06, 26,000 miles

“While doing routine maintenance on my vehicle- I removed the radiator cap and noticed that the GM dex-cool extended life coolant has deteriorated. With only 40,000 miles the coolant should have had another 3 years and 60,000 miles before needing servicing. If I do not get the system flushed and hopefully refilled with something that won't degrade- I will to pay to have the system professionally flushed. This can only be done by the dealer since no one can handle dex cool systems yet. …”

NHTSA complaint #754053, filed 2001-11

“Conusmers vehicle has been in for repairs of the fuel injectors six times. Vehicle is not running properly because of the failure. The service engine soon light illuminated resulting in necessary flushing of the injectors. The fuel pressure regulator is leaking and the fuel tank filler pipe needed replacing.”

NHTSA complaint #565977, filed 2002-06

“Email fm robert carter (tx) re Gmc refusing to repair a recall engine part free of charge on his Gmc Safari van since he missed the recall cut off date while on military duty overseas.”

NHTSA complaint #10089976, filed 2004-08

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2003211%
200214%
200138%
200057%
1999610%
199867%
19971813%
1996107%
1995168%
199454%
199335%
199212%
199138%
199026%
1989317%
1988114%
1987436%
1986114%

Other parts of the 1999 GMC Safari

Transmission and drivetrain
19 complaints
Brakes
18 complaints
Fuel system
6 complaints
Seat belts
6 complaints
Electrical system
4 complaints
Air bags
3 complaints
Steering
3 complaints
Vehicle speed control
3 complaints
Equipment
2 complaints
Body and structure
2 complaints
Suspension
2 complaints
Tires
2 complaints

← All problems reported for the 1999 GMC Safari

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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