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Sedans Buick LeSabre Buick LeSabre Starting/Stalling Problems
168 messages, Last post on Nov 29, 2009 at 1:45 PM
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Hi, I have an 02 Buick LeSabre Custom, 3.8l. with 65,000mi.,and not showing a code. The problem I'm having is once it gets up to operating temperature it has a tendency to stall. It will start again but cranks a few seconds and sometimes you have to feather the pedal to get it started. It starts right up when cold. Once in a while if turn the wheel all the way when backing out of the driveway it stalls, but that's when cold. If someone out there can help I'd appreciate it cause it's only getting worse. TY |
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Replying to: luvmytoyz (Mar 22, 2009 9:13 am) |
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Replying to: luvmytoyz (Mar 22, 2009 9:13 am) When it dies, turn the key off and on for a couple of seconds and listen to the sound of the pump. Repeat a couple of times to build up pressure. See if it start faster. The feathering could be fuel pressure. Also could be MAF sensor -- I believe I recall one person having that symptom. You can disconnect the MAF sensor. It also can be removed for cleaning--don't touch the wires buried inside the plastic. Just spray with MAF cleaner or use an artist's brush to dust them. Lots of MAFs have same part number; so if you have another GM with same part, you can switch the two for a while and see if the symptom moves. The fellow who lives next to me inherited his father's Monte Carlo. It has 65K on a 95 and fuel pump went out. It was his second car and he always kept a minimum of fuel in it.
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My car cranks and then stops. It even cuts off while I'm driving whereas I throw it in neutral and crank it back up and will run, but here's the glitch: 1. We took it to AutoZone and was told it could either be the vacuum line or the oxygen sensor. We fixed that problem. 2. We tuned it up, new oil, new filter and everything, but it's still doing the same thing. 3. We then told one technician at O'Reilly's what was going on and he said it might be the ignition coil. What is that, and what does it cost to fix?
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Replying to: nikkiro74 (Mar 23, 2009 8:34 am) It can be crankshaft position sensor. It can be fuel pump. Try checking fuel pressure with a gauge while driving it. Some lose pressure as they heat up when running and cut out due to pressure dropping. It can be the ignition module that's under the coils. It's doubtful it's just one of the 3 coils; you'd have rough running when one isn't working up to par. You can try disconnecting the power cables to it and reconnecting them. If it stays off long enough, you can pull a spark plug wire and have a spare plug ready to put in it and lay on metal part of motor while someone cranks to see if you get a nice blue spark. Or just lay the plug wire there--it should give a good loud spark. It can be a vacuum line that has rotted or cracked. Check them all very carefully around the upper intake manifold. You can spray carburetor cleaner around the manifold and the vacuum lines while the motor is running. If there's a leak, when it sucks in the carb cleaner, the idle will change. Voila, you found a leak.
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Replying to: imidazol97 (Mar 22, 2009 5:44 pm) You think for as many years GM's been building these 3.8's they'de have them refined by now. As much as I hate to say it, at least the Japanese usually fix a problem when they find one. TY's Again
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Replying to: imidazol97 (Mar 23, 2009 10:16 am) |
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Replying to: luvmytoyz (Mar 24, 2009 4:55 pm) door,they don't last long at all.The fuel pumps usually go out around 80,000 miles. Then the crankcase sensor! |
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I have a 2000 Buick LeSabre. The check engine light has been on for a while, and I was told that the MAF sensor needs replacing, but it would be o.k. to drive it for a while. This last week, the heater quit working, and it has been running hot (not in the red but once, but the gauge is a lot further to the right than it should be). Then the other day it started jerking and acting like it was going to die when I was driving, but it never did die. When I let it coast, it doesn't do that, but when I put my foot on the gas it does. I have added coolant twice even though it didn't look like it needed it, but I had been smelling coolant for a while when I turned the engine off. Could these all be related to the MAF sensor needing replacing?
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Replying to: folderqueen (Apr 05, 2009 10:47 am)
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