Last post on Sep 24, 2013 at 11:21 AM
You are in the Buick LeSabre
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Buick LeSabre, Engine, Sedan
#285 of 305 Re: buick problems [imidazol97]
Jun 27, 2013 (2:55 pm)
I also own a 1997 Buick Lesabre & have had very similar problems. I would be driving 35 mph and it would just cut off. when it first started doing this last year, after sitting for 5 minutes it would crank back up. It started happening more frequent and then wouldn't start back up. I had to call aaa to come tow me. 2 different mechanics could not find the problems. then the car would act like it wasn't getting gas & then would cut off. the steering wheel wouldn't turn for me.I eventually parked it, not knowing who to take it to. I got tired of donating money to mechanics. from what I hear on this discussion board it is a major problem with buicks. was there ever a recall on anything pertaining to this "problem"
#286 of 305 Re: buick problems [sandismom]
Jun 28, 2013 (8:36 am)
Yep. My Buick would just die while driving and would typically restart within a few minutes. In my case it was the crank sensor. My mechanic did not find this issue, it was predicted here on this forum and I had to specifically request it be replaced. I don't remember how much it cost but it wasn't more than $200 (maybe around $150) for the time and parts. Of course it may or may not be what's wrong with yours, but it may be worth a try.
#287 of 305 Engine stalls when idle update
Jun 29, 2013 (10:16 am)
It has been a month now and I still haven't found the solution. Neither has the autoshops. Shortly after my last post, the brakes went out so I had to get them replaced.. along with a new heater core because there was an anti-freeze leak in the dash. As for the stalling issue, it has still not been resolved yet. I gave the autoshop in the condition they wanted it: The point where it would just shut off whenever I turn it on, like, it starts up fine then a second later, cuts off. I had to push the car into the parking spot because I just wasn't able to drive it.
The autoshop is doesn't know what to do. They put all their test equipment on the engine and everything checks out fine. They said something is causing the car to produce rich air, or something like that. Basically the car's air is too rich and causes it to stall. Note this only happens when the car is HOT. When it is cold, it runs just fine. They tried swapping out the CPU and the ignition module and that did not help. Frankly, they have no idea and its driving them nuts and its driving me nuts too.
Has anyone had similar issues or have any suggestions? Would replacing the crank sensor work out?
#288 of 305 Re: Engine stalls when idle update [tndayo]
Jul 03, 2013 (6:59 am)
I've been down this same road, and it turned out to be the fuel pressure regulator, do some research on it and it might just be your issue too.
#289 of 305 2000 Buick LaSabre stalling
Jul 30, 2013 (6:54 pm)
I have had many of the same issues that seem to be floating in this forum with my car stalling. Since May, it has stalled more than I care to think so towing bills have been outrageous. It started while I was traveling at 30 mph on a major street. The car turned itself off while driving. It started and then stopped. The intake valves were replaced and other items under the hood but that did not help. It ran for several days and then started again. It ran for a week and stalled again while driving. Then it would not start. I have been to 2 mechanics and nothing shows up on the computer. Coils were changed. It started and ran without hesitation for several weeks. The CPU was checked. That is not the issue. I have taken notes on what others have said to see if we can find what is wrong. My engine light and gas tank lid light have stayed on for two years. I have replaced the gas tank caps from both generic and dealer and nothing works. This all began after Pep Boys changed my spark plugs in May 2010. Problems started in summer 2011. Could it be the key? The irony is that both times the car was towed, after it cooled down for over 4 hours, it started. I can't continue this hesitation as I travel and it causes me money to tow and the possibility of a major accident could occur.
#290 of 305 Re: 2000 Buick LaSabre stalling [shergraham49]
Aug 02, 2013 (4:34 am)
By any chance, did you get the crank sensor replaced? That seemed to be the problem with mine. Except my problem was that my car stalled when I was idle and not while driving. Whenever I stopped at a red light, the car would stall. I caused so much traffic that way, its quite embarrassing. Whenever I let it cool down for a couple of hours, it would run fine. It did stall on me when I was driving sometimes though. But anyways, after spending tons of money at the car repair shop. They figured out it was the crank sensor. After they replaced it, the car ran has been running fine and it has been a couple of weeks now. I hope I didn't jynx it. The crank sensor won't pick up on their testing equipment. They tested everything, even the CPU and for vacuum leaks. As for your engine light and gas tank lid, I'm not sure what those are. The whole time I was having issues with mine, no lights were on. Well good luck.
#291 of 305 Re: 2000 Buick LaSabre stalling [shergraham49]
Aug 02, 2013 (4:52 am)
The gas cap loose is probably a P0440 which means a leak in the tubing when the car tries to check for a leak by pulling a vacuum on the tank and watching how fast the air moves in to replace the lower pressure. It requires having someone trouble shoot the exact code and then checking the rubber parts of the vacuum tubing on the top of the engine to the purge valve. There are parts that crack as they harden with age. When Pepboys worked around the engine they may have wiggled the tubes and caused the cracks to leak. ONe part is a U-shaped turn on mine. I ended up putting a heat shrink tube around it to seal it.
The leak can also be some other tubes such as the rubber tube from the carbon canister to the vent valve which closes so the vacuum can be drawn OR the vent valve itself may not be closing. That would set a different code.
Not sure what the "intake valves" are that you mean. But I vote for the crankshaft position sensor. The test is to pour cool water over the sensor which is under the edge of the large pulley low on the engine with the belt around it. If that cools it quicker when your car shuts off, then the $40 part can be replaced by taking off that large pulley--maybe a maximum 1 hour job.
The other could be the Igniton Control Module which is under the 3 coils. It has wires to the end of it. You might wiggle them to see if that improves contact, but they were very well held in place. The module might be getting hot and cutting out.
The real test for the last two is to test a plug wire to see if you're getting spark while the car is cranked when it has just cut off. That requires having a spark plug wire you can pull of and lay on top of the metal to look for spark.
#292 of 305 Re: 2000 Buick LaSabre stalling [tndayo]
Aug 02, 2013 (8:51 am)
THanks for your email advice. This is one piece I saw on the forum that people recommended. I am talking to my mechanic today to see how we can get that done. Someone also suggested a new key but that is expensive. My car went through four different computers and everything tested well and working. I hate the fact that Buick does not see this as a major issue as it could cause an accident or death if it happens at a high speed. I will try that.
#293 of 305 Re: 2000 Buick LaSabre stalling [shergraham49]
Aug 02, 2013 (10:27 am)
I did forget to mention an ignition switch contact may be the problem. But those would often fail at random times or when a sharp bump affects the switch. Now I'm talking about the actual ignition switch with the electrical contacts and _not_ the key cylinder itself, unless those are the same on our 2000-5 cars. I haven't checked my factory service manual.
Aug 03, 2013 (9:48 am)
where is the vat modual located on 92 la saber