NHTSA — Engine And Engine Cooling: Cooling System: Radiator Assembly Problems


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
20,263 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

1998 Pontiac Bonneville cooling system problems

cooling system problem

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1998 Pontiac Bonneville Owner Comments

problem #3

Sep 012004

Bonneville 6-cyl

  • Automatic transmission
  • 60,789 miles


When driving at an undetermined speed, the check engine light appeared on the dashboard, then the vehicle stalled. Consumer had the vehicle towed to the dealership and the mechanic determined that the fuel pressure failed. The radiator cap was replaced. While in motion, about 2 miles at 30 mph, the check engine light had come on. The vehicle was returned to the mechanic. The next day the vehicle would not start. The dealer found that fuel leaked and ruptured the manifold. Recall#04V090000. The consumer was told that the recall was not in reference to her vehicle. The consumer sent in a thank you note after recieving her recall notice.

- New Kensington, PA, USA

problem #2

Aug 012002


  • miles
Engine light illuminated. Pulled over and noticed water leaking from radiator. Upper plenuum plastic melted, allowing water to get into engine, and engine locked up.

- Lynn, IL, USA

problem #1

Jul 152002


  • miles
After refueling engine light illuminated. Took vehicle to dealer, dealer stated radiator needed water. Water was coming through radiator, and exiting through exhaust system. Please provide any further infomation.

- Pontotoc, MS, USA

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