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1999 Pontiac Bonneville: fuel leak

8 of the 143 complaints about the 1999 Pontiac Bonneville describe fuel leak.

owner complaints
8
of this car's complaints
6%
recalls
1
Is there a fix? There is 1 recall for this area of the car. See below

Fuel leak by model year

  • 2002
    1
  • 2001
    1
  • 1999
    8
  • 1998
    5
  • 1996
    4
  • 1992
    1
  • 1990
    1

What owners say

Filed Nov 24, 2011 · Fuel system · GA

Fuel system, gasoline:delivery recall for 1999 pontiac bonneville recall announced: february 24 2004 the federal safety agency reference: #04v090000 number affected: 910,873 summary: 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. Consequence: 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. Fix: 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. For detailed information & supporting documents, see the official the federal safety agency page concerning recall #04v090000.

Filed Sep 17, 2010 · Fuel system · 132,000 miles · NC · fire

There has been a problem with a gas leakage. The fuel supply line fitting at the fuel injector rail was the problem. O-rings were replaced, things seemed fine - no gas smell or leakage. This lasted for appx. 24 hours. I drove about 7 miles to and from work three times, a total of 21 miles, stopped at a library, came out, smelled gas, was driving the car home - one mile - was going to park it and get someone to look at it. I stopped at the mailboxes and heard a slight poof sound under the hood.when I looked up I saw smoke bellowing out from under the hood. I grabbed my purse and jumped out. From a distance I saw 2" balls of fire dropping from the engine to the street, called the fire department and watched my car go up in flames while waiting for them to show up - all because of one small plastic piece under the hood. Also, I would highly recommend everyone to carry full insurance coverage - a lesson hard-learned.

Filed Jun 30, 2006 · Fuel system · 80,551 miles · CA

Noticed smell of gas when auto parked in garage..further investigation noted that fuel leaking from fuel line..took auto to dealer and dealer stated that both fuel lines have deteriorated, causing the leaks..while I have been familiar with fuel leaks from loose connections, I can not imagine how fuel lines can not been built to last.

Filed Oct 5, 2004 · Fuel system · 102,000 miles · NC · fire

My 1999 pontiac bonneville exploded when the key was turned in the ignition & fire shot out from under the hood. When the key was turned off, the fire stopped. I had the car towed to a private mechanic who replaced the a fuel injecter & upper intake plenum (which was in pieces from the explosion). My bill was $430.63. In june 2004, I received a recall letter from gm corporation saying there was a safety issue with fuel pressure regulator diaphragms leaking. The letter described the following: "a leak can allow fuel to enter the intake manifold through a vacuum line. In low battery conditions, if the engine does not start when cranked, the fuel from the leaking regulator and a spark can cause a back fire. The back fire can rupture the intake manifold, causing a loud bang. The rupture of the intake manifold can displace a fuel line, pulling an injector out of place, and causing a fuel leak. If there is an ignition source, a fire can result." this letter described exactly what had happened . The lights had been left on in my pontiac which caused a dead battery. A battery charger was connected to the vehicle when the explosion happened. When we tried to start the car again, the fire started again where the intake manifold was located. I made a request for reimbursement to gm. My file # is 1-260698900. I was asked to take my car to a dealer in salisbury for an inspection. When I took the car in on sept. 29, 2004, the fuel pressure regulator was replaced. According to the recall letter, an inspection will be made and, if necessary, the regulator will be replaced. So the recall condition was fixed by this replacement. Gm refuses to reimburse me for my repair saying I have no proof the recall condition caused the explosion. I was given no recourse to dispute their decision. The condition described in the safety recall letter was exactly what happened to my vehicle in february. Help.

Filed Apr 19, 2004 · Fuel system · 460,000 miles · MI

My 1999 pontiac bonneville equipped with 3800 v6 (l36) engines and certain delphi fuel pressure regulators, the regulators was found to have a pin hole leak in the diaphram causing fuel leaks and engine backfire. This is similar to safety recall 04v090000, yet pontaic says none of the pontiac bonneville are included why not??? Sounds like it is also a problem on this car also.

Filed Feb 10, 2003 · Fuel system · IL

The fuel sensor was faulty, which caused the vehicle to leak gas.

Filed Oct 30, 2002 · Fuel system · MN

The consumer states that the fuel regulator is leaking fuel , causing the vehicle to have a strong fuel smell. The mechanics told the consumer that if not replaced right away, this may cause a fire, the fuel regulator has been replaced twice since the consumer owned the vehicle.

Filed Oct 7, 2002 · Fuel system · MN

The consumer states that the fuel regulator is leaking fuel causing the vehicle have a strong fuel smell. *mr

Related recalls

Fuel system, gasoline: deliveryReported February 24, 2004 · 910,873 vehicles affected
What is wrong
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.
Risk
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.

Recall number 04V090000 · Recall details

Questions about the 1999 Pontiac Bonneville fuel leak

Is fuel leak a common problem on the 1999 Pontiac Bonneville?

8 of 143 owner complaints about the 1999 Pontiac Bonneville (6%) mention fuel leak. The model year with the most reports is 1999.

Is there a recall or service bulletin for this on the 1999 Pontiac Bonneville?

There is 1 recall and 0 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 1999 Pontiac Bonneville

Stalling 33Loss of power 9Engine failure 8Fuel smell 5Won't start 5

All model years of the Pontiac Bonneville

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