Buick Lesabre misfire problems

Filed Jun 15, 2023 · Engine, Fuel system · 231,000 miles · MO

The contact owns a 1998 Buick LeSabre. The contact received notification of the federal safety agency Campaign Number: 04V090000 (Fuel System, Gasoline) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving approximately 45 MPH and at various speeds, the engine started to misfire. The contact stated that the check engine warning was illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic to be diagnosed. The vehicle had not been repaired. The contact used an OBD scanner and retrieved code: P0300 (Multiple Random Cylinder Misfire). The contact stated while stopped at a traffic signal there was an abnormal gasoline odor inside the cabin of the vehicle. The manufacturer was not made aware of the issue. The failure mileage was approximately 231,000. Parts distribution disconnect.

Filed Jun 24, 2015 · Engine · 620,000 miles · AZ

My check ingine light wont go off and I was told I have mass air flow and now when I start it it misfires,my air conditioning doesnt work and the speedometer is reading crazy

Filed Apr 1, 2014 · Engine · 52,213 miles · IN · fire

Tl* the contact owns a 2002 buick lesabre. The contact stated that upon initial start-up, the vehicle hesitated and appeared to misfire. The contact then suddenly heard a loud pop followed by a massive amount of black smoke coming from under the hood of the vehicle. The vehicle was not diagnosed or repaired. The dealer and the manufacturer were made aware of the failure and declined to provide a remedy to the contact. The vehicle was repaired. The failure mileage was 52,213. Updated 05/28/14 ma updated 6/26/14*cn updated 7/29/17

Filed Oct 22, 2013 · Engine · 48,000 miles · OH

Tl* the contact owns a 2005 buick lesabre. The contact stated that while driving various speeds, the vehicle began to exhibit hesitation and a severe vibration. The vehicle was taken to an independent mechanic where the motor mount and gasket were replaced. The manufacturer was notified of the problem. The approximate failure mileage was 48,000. ...updated 12-24-13 *bf the lower intake gasket was faulty and leaking oil and coolant. The technician also found the plastic upper intake plenum warped and leaking coolant into the lower intake manifold causing the engine to misfire. Updated 12/31/13

Filed Oct 21, 2004 · Engine · 88,103 miles · AR

July 11, 2002: we had to have 5 injectors replaced by jordan oldsmobile-buick, hot springs, arkansas. Cost: $709.42. Mileage was 82,260. October 31, 2002: we had to take our car to orr pontiac, cadillac, toyota, hot springs, arkansas, because the car misfired (or backfired) on us. The work order states: customer states that oil light and temp light came on; car was low on coolant and had to add water, said a lot of white smoke came out of tail pipes and had very bad sulfur smell. Intake leaking, flooding cyl with coolant. replaced : two manifolds, coolant, oil, etc. Cost: $1398.66. Mileage: 88,103. November 15, 2002: oil gauge goes to red and engine has knock. Diagnosis was internal engine damageI was told that parts of the engine had been made of plastic and this plastic had melted. Complete new engine. Cost: $4174.94. Mileage: 88,821.

Filed Oct 6, 2004 · Engine · 100,570 miles · OH

While driving vehicle commenced to run roughly. Vehicle was pulled over, and found coolant missing because of design defect in part caused fluid to be drawn into engine. This caused the 3engine to seize and an overhaul to be needed. Possible recall scrapped because problem was not a saftey issue. Vehicle was towed to the dealer, who informed consumer that the upper manifold needed to be replaced.*ak

Filed Sep 13, 2004 · Engine · 95,000 miles · MN

Vehicle's engine misfires and loses power. *mr the service engine light had come on along with the misfires and power loss. The consumer was told that the problem could be due to the engine hydraulic lock. The consumer stated that gm was aware of the plastic intake manifold problem.

Filed Aug 12, 2004 · Engine · 66,582 miles · MI

While driving service engine light came on. Then, vehicle decelerated followed by heat and ventilation failures. This was due to engine intake manifold malfunctioning. The manifold wasn't designed correctly by the factory engineer, which caused the engine to misfire. Dealership diagnostic test showed coolant leaking. Cylinder replaced, and lower intake manifold improved design, per bulletin 010601007a. Also, coolant and fluid plugs were replaced.*ak

Filed Aug 4, 2004 · Fuel system · TX

Request for reimbursement for replacement of intake plenum. *mr due to a backfiring/misfiring problem. *sc there was a recall regarding the problem and the consumer is now requesting reimbursement. Recall #(04v090000)

Filed Feb 19, 2004 · Engine · IL

When accelerating, the vehicle stalled. The driver stated that the vehicle has a design flaw in the engine manifold upper intake valve. *jb (manifold and gaskets malfunctioned) the oil pan and valve cove was replaced. There was also a fuel injector problem. The dealer found the #4 cylinder misfiring with no fuel drop.