IllustrationSEVERAL 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. *JS
1999 Chevrolet Silverado 2500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 1999 Chevrolet Silverado 2500 do not stand out strongly from the model-year median of 81.
About this comparison →How this year compares
Owner complaints by model year
Compare all Silverado 2500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
10–25K
425–50K
750–75K
1475–100K
13100–150K
11150K+
50 reports with mileage · 31 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes, Hydraulic. Review the 38 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Tires. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
2 crash reports2 fire reports2 injury reports
Engine And Engine Cooling complaints
3 reports1999 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…
Read full complaint
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. *TR
ENGINE FAILED DUE TO FAILURE OF TWO CONNECTING RODS DURING START-UP. *LA
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.