Your vehicle report
1998 Pontiac Bonneville
The problems owners report. The recalls to check. The evidence behind each.
Your vehicle at a glance
Complaint patterns and official recall records, kept distinct.
- Owner complaints
- 277
- Received Nov 1997 to Sep 2015
Owner reports
Most reported problems
- 1Plastic intake manifold cracks and leaks coolant88 complaints · 32% of this vehicle’s complaints
- 2Engine suddenly shuts off while driving27 complaints · 9.8% of this vehicle’s complaints
- 3Head gasket leaks coolant into engine23 complaints · 8.3% of this vehicle’s complaints
Official NHTSA records
Recalls to check
- Recall #04V090000On certain passenger vehicles equipped with 3800 V6 (L36) engines and certain delphi fuel pressure regulators, the regulators have a much higher than usual rate of fuel leaks. A leak can allow fuel to enter the intake manifold through a vacuum line. If the engine does not start when cranked, the fuel from the leaking regulator and a mistimed spark can cause a backfire.
BrakeNews signals
Flagged complaint patterns
Unusual complaint patterns with no matched recall yet. A flag does not mean a recall will happen.
No problems currently meet BrakeNews’s flagging criteria. This is not a safety rating.
How flags are identifiedComplaint counts reflect reports submitted to NHTSA, not failure rates or a reliability ranking. Reported in these complaints: 9 crashes, 28 fires, 7 people injured, 0 deaths.
Explore by system
Where do owners report problems?
Choose an area on the car or a system below to explore the reported problems.
Illustrative only; not this vehicle’s exact design. Areas represent complaint categories, not confirmed defective parts.
Showing all 9 listed problems by system.
Engine & powertrain
Brakes
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Electrical & lights
Airbags, belts & seats
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Steering, suspension & tires
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Body, doors & glass
Driver assistance
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Other
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Complaint history
When NHTSA received these reports. Changes in reporting alone do not establish a change in failure rates.
Show as a table
| Year | Complaints |
|---|---|
| 1997 | 2 |
| 1998 | 9 |
| 1999 | 16 |
| 2000 | 15 |
| 2001 | 17 |
| 2002 | 45 |
| 2003 | 64 |
| 2004 | 63 |
| 2005 | 18 |
| 2006 | 6 |
| 2007 | 2 |
| 2008 | 5 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 3 |
| 2012 | 0 |
| 2013 | 3 |
| 2014 | 5 |
| 2015 | 2 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
| 2026 (to Oct 2026) | 0 |
| Total | 277 |
Problems owners report
Listed groups have at least 3 complaints. The page includes the 20 largest groups plus any additional flagged groups; some complaints are not assigned to a group.
| Problem | Complaints | Share | Share ratio | Status |
|---|---|---|---|---|
| Plastic intake manifold cracks and leaks coolant | 88 | 32% | – | |
| Engine suddenly shuts off while driving | 27 | 9.8% | – | |
| Head gasket leaks coolant into engine | 23 | 8.3% | – | |
| Vehicle catches fire from wiring | 22 | 7.9% | – | |
| Check engine light comes on repeatedly | 6 | 2.2% | – | |
| Fuel tank or line leaks gasoline | 4 | 1.4% | – | NHTSA recall #04V090000 |
| Windshield wipers work intermittently or fail | 3 | 1.1% | – | |
| Horn fails with airbag warning light | 3 | 1.1% | – | |
| Transmission fails or loses power while driving | 3 | 1.1% | – |
AI groups complaints by meaning; the groups are approximate. Share ratio compares the problem’s share of this vehicle’s complaints with its share on other vehicles over the last 24 months (shown from 3 recent complaints). A 2× ratio means twice the complaint share, not twice the failure risk. Flags mark unusual shares or recent surges after an AI review of the complaint content. “First signal” does not mean the pattern has persisted continuously.How recall estimates are calculated.
Recalls
NHTSA recall #04V090000February 24, 2004910,873 vehicles affected
fuel system, gasoline: delivery
On certain passenger vehicles equipped with 3800 V6 (L36) engines and certain delphi fuel pressure regulators, the regulators have a much higher than usual rate of fuel leaks. A leak Can allow fuel to enter the intake manifold through a vacuum line. If the engine does not start when cranked, the fuel from the leaking regulator and a mistimed spark Can cause a backfire.
The backfire Can rupture the intake manifold. The rupture of the intake manifold Can displace a fuel line, pulling an injector out of place, and causing a fuel leak and possible fire.
Remedy
Dealers will install new fuel pressure regulators with improved diaphragms. The recall will be conducted in phased mailings. Phase 1 began on june 30, 2004, and phase 2 began on september 30, 2004. Owners should contact Buick at 1-866-608-8080, Oldsmobile at 1-800-630-6537, or Pontiac at 1-800-620-7668.
Other model years
About this data
NHTSA complaints and recalls through October 2026. Complaints are counted once each, however many components they name. Original complaints are on NHTSA's page for the 1998 Pontiac Bonneville.
Problem groups are formed by AI and may be approximate. BrakeNews flags unusual complaint patterns; they are not official defect findings. Investigation reports are written and checked by AI, with no human review. Owner reports do not establish that a defect exists.
Read the methodology and track record · Check current recalls by VIN