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Engine coolingPart report

1999 Chevrolet Silverado 2500 Engine cooling Problems

Complaints
3about this part
Share
4%of 81 total for the year
Median mileage
137,532miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine cooling of the 1999 Chevrolet Silverado 2500, 4% of the 81 complaints for this model year. Where a mileage was given, the median is 137,532 miles. 1 a fire, according to the filers.

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.

“Several of my exhaust manifold bolt heads broke off even though they have never been removed causing hot exhaust to leak out igniting some electrical wiring. My mechanic told me this is a very common problem with GM v8's.”

NHTSA complaint #10545353, filed 2013-09, 190,000 miles

“1999 and up chevy gmc silverado with the 6.0 liter engine are having problems with the exhaust manifold bolts rusting off. This creates and exhaust leak that is bad for air pollution not to mention with gas in the area a fire hazard. This problem need a recall and many have the problem and don't know it and the ones that do fix it pay a lot of labor cost this is a fairly labor intense job.”

NHTSA complaint #10250861, filed 2008-12

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202312%
202233%
202044%
201934%
201812%
201511%
201111%
200912%
200853%
2007136%
2006127%
2005166%
2004236%
2003164%
20024312%
20017820%
2000118%
199934%
199823%
1997711%

Other parts of the 1999 Chevrolet Silverado 2500

Brakes
47 complaints
Fuel system
8 complaints
Tires
8 complaints
Electrical system
4 complaints
Vehicle speed control
3 complaints
Air bags
2 complaints
Engine
2 complaints
Seat belts
2 complaints
Steering
2 complaints
Body and structure
2 complaints
Exterior lighting
1 complaints
Latches, locks and linkages
1 complaints

← All problems reported for the 1999 Chevrolet Silverado 2500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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