Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
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.
Engine And Engine Cooling. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
1 reports
Mileage unknown · Jun 10, 2002
Engine And Engine Cooling
CONSUMER HAS SIX 1997 B7 WITH 20000 MILES OR LESS AND THEY ARE ALL HAVING THE SAME PROBLEM. THE PROBLEM IS WITH THE DESIGN OF THE SEAL FOR THE EXHAUST BETWEEN THE MANIFOLD AND THE PIPES. THE DESIGN WAS CHANGED FROM CONSTANT TENSION TO A SOLID COLLAR WHICH IS CAUSING THE EXHAUST TO LEAK. *JG THE CONSUMER PURCHASED …
Read full complaint
CONSUMER HAS SIX 1997 B7 WITH 20000 MILES OR LESS AND THEY ARE ALL HAVING THE SAME PROBLEM. THE PROBLEM IS WITH THE DESIGN OF THE SEAL FOR THE EXHAUST BETWEEN THE MANIFOLD AND THE PIPES. THE DESIGN WAS CHANGED FROM CONSTANT TENSION TO A SOLID COLLAR WHICH IS CAUSING THE EXHAUST TO LEAK. *JG THE CONSUMER PURCHASED TWO 2001 G30 CHEVROLET MINI BUSES WITH 5.7 LITER ENGINES ONLY TO FIND OUT THAT THEY HAVE THE SAME DEFECT AT ONLY 4000 MILES.
NHTSA ODI #566044
Official recalls
0
No 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
0
No exact-year investigations in this snapshot.
1999 GMC B7 Chassis Problems, Complaints & Recalls | Skip That Year
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