1999 Pontiac Bonneville Problems: 1 Issues Every Owner Should Know

What are the most common Pontiac Bonneville problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1999-1999 Pontiac Bonneville has 1 documented issues. The most frequently reported are: Bonneville 3800 V6 Lower Intake Manifold (LIM) Gasket Failure. None are rated critical, but regular maintenance is recommended.

Is the Pontiac Bonneville reliable?

The 1999-1999 Pontiac Bonneville has 1 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Pontiac Bonneville problems?

Repair costs for known Pontiac Bonneville issues range from $400 to $1,200, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 1995-2005 Pontiac Bonneville Bonneville 3800 V6 Lower Intake Manifold (LIM) Gasket Failure?

1995-2005 Bonneville with the 3800 Series II / III V6 (L36 NA or L67 supercharged) suffers the same LIM gasket failure that hit Buick Park Avenue/LeSabre, Olds 88, Chevy Monte Carlo, etc. Plastic intake material softens under coolant exposure (especially Dex-Cool); coolant migrat… Repairs typically run $400-$1,200. Severity: critical.

1999 Pontiac Bonneville Problems: 1 Issues Every Owner Should Know

All 1 Known Issues

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Frequently Asked Questions

What are the most common Pontiac Bonneville problems?

Is the Pontiac Bonneville reliable?

How much does it cost to fix common Pontiac Bonneville problems?

What is the 1995-2005 Pontiac Bonneville Bonneville 3800 V6 Lower Intake Manifold (LIM) Gasket Failure?