Engine Exhaust System Problems of Buick Lesabre

The contact owns a 1997 Buick Lesabre. When the contact started the vehicle, it sputtered, jumped, backfired, and shut off. The vehicle emitted a large amount of fumes and smelled of gasoline. She noticed that the catalytic converter was orange and had the vehicle towed to a repair shop. The mechanic stated that the ignition module needed to be replaced. The module was replaced, but only lasted five days. The failure recurred and the mechanic towed her vehicle to the shop. The manufacturer stated that her VIN was not included in a recall; therefore, the contact would be responsible for the repairs. The failure mileage was 172,000.

See all problems of the 1997 Buick Lesabre 🔎.

The belt tensioner is made of plastic which broke disabling the car which had to be towed. Oil leak came from lower intake manifold gasket, gathered around bottom at oil pan, upper intake manifold gasket, also made of plastic leaked antifreeze into engine. Tensioner was replaced with same plastic because it has not been re-designed,same with the intake manifold gasket, therefore, it will give the same problem in the future. A lot of other people are having the same problem and gm refuses to do anything about the problem.

See all problems of the 1998 Buick Lesabre 🔎.

Contact states there is an odor coming from the vent while the heat or air condition is in use. The service dealer installed an electronic deodorizer fan. This did not fix the problem. The vehicle has been to dealer twice since then, and they installed an interior box for an hour, and sprayed the vehicle with a deodorizer, and checked the recall fan.

See all problems of the 2004 Buick Lesabre 🔎.

Erratic engine performance and occasional "check engine" light reported several weeks ago when vehicle was in for minor repair. Independent delco garage owner indicated stored codes were for "O2 sensor" - however it appeared to be functioning normally at that time. On Friday 4/11/03, erratic engine performance (missing, loss of performance) caused me to head towards garage for further investigation. En route, vehicle stalled out, and refused to restart (at one point, a back fire occurred during restart attempt. Had vehicle towed to garage, and during subsequent inspection, it was discovered the heat from the "egr" pipe from the lower intake manifold had damaged the upper composite manifold, causing a coolant leak into the intake. Stored codes at this time indicated O2 sensor, misfire and catalytic converter. Owner indicated these readings were consistent with his experience, and informed me that they have replaced at least a dozen to 18 upper intakes in past 18 months. Quoting him "we're just a small garage". I have also been told that when he called local gm dealership (to inquire on availability of parts) he was told "we have so many of these in stock that we can't even put them up on the shelves they are stacked in the aisle. " what is most disconcerting is when I called Buick division general motors corp customer assistance center I was told by kevin dam (sp?) and darlene vega (sp?) that there was no known complaints, investigations or recalls regarding this problem. After reviewing this site and your investigation(s) - someone is grossly misinformed! and it appeared the manufacturer may even be participating in denial and/or misrepresentation in this matter. My inquiry (complaint or whatever they call it) was given the number 1-89860067. It seems to me that we all have a ticking bomb on our hands . . . Unfortunately, I drive it to work each day! can you help me?.

While driving consumers steering wheel froze. Intake manifold ruptured. While the driver was turning on an embankment the vehicles steering froze and the vehicle almost went over the side. The dealer indicated that the intake manifold plenum failed.

See all problems of the 1999 Buick Lesabre 🔎.

A hole was created in the upper plenum manifold emission system by the egr valve. So I was told. Is this covered under the government emissions systems warranty? Buick said only the catalitic (sp) converter is covered under this warranty.

Vehicle fire/ vehicle destroyed. On several occasions, prior to fire, vehicle would surge then die out at both stops and when slowing down. Also engine had a whining noise. Dealer replaced generator assembly. Fuel filter also replaced. Cleaned throttle body. Brakes made squealing noise. Rear brakes cleaned and adjusted. There was a loud noise in the right rear after hot at stops. Exhaust system misaligned. The mirror compass and rear window were also inoperative. Vehicle was also involved in an accident prior to fire.

When driving car vibrates excessively at all speeds, cause 3 tires out of round. A popping noise from exhaust when starting cold, can not locate problem at this time.

See all problems of the 2001 Buick Lesabre 🔎.

Vehicle would stall at low speed, even after dealer claimed they fixed some wirings in the back of engine on 8/28/2000. The engine stall has been an intermittent problem for this vehicle since brand new, first it was a defective alternator then the wirings? this is very dangerous on highway because you do not know when the engine is going to stall. This vehicle also has a exhaust fumes getting into ac intake problem, I suspect a defective hood seal.

See all problems of the 2000 Buick Lesabre 🔎.

While driving would notice odor inside of vehicle. Had taken to dealer & vehicle kept overnight. Mechanic had noticed strong odor of gasoline, next day. Was informed gasoline odor could have started fire around ignition source. Also, dome light kept coming on/off by itself when vehicle was parked.

Exhaust system seal failed.

Seals within the exhaust system failed.

See all problems of the 1996 Buick Lesabre 🔎.

There id an exceptional loud nosie when accelerating, vehicle taken to dealership, mechanic stated it was only noise from the exhaust. Cj.

Exhaust system failed. Nlm.

The vehicles intake manifold failed when the vehicle was started and resulted in a fire under the hood.

The consumer attempted to start car when the engine backfired, the manifold exploded and the engine caught fire.