Buick - LeSabre :: 1999 - Cannot Turn Off High Beams Via On / Off Switch
Aug 15, 2015
99 Buick LeSabre ... I only have one low-beam working, the other low-beam bulb went out today ... When I switch to high-beams, the high-beams come on, but I cannot turn them off via the manual light on/off switch on the door panel ... The Twilight Sentinel works properly, and will shut off the high-beams per switch setting ... During the daytime, the high-beams will just stay on till I turn off the car, manual headlight switch won't turn them off ...
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My Buick LeSabre, 2000 model, has had the wiper motor replaced 3 times in an attempt to solve this problem. The multi-switch has also been replaced. The rain sensor on the windshield was disconnected after the 3 motors were put in just to eliminate a potential cause. It is plugged back in now.The problem is intermittent as well. When you are driving, the wipers engage and nothing will stop them.The car has a little less than 80,000 miles on it.
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After I start my Lesabre when cold, after about 15 minutes or so it starts idling high, usually about 1500 , but sometimes it's as high as 2300 while stopped at a light. And a few times it has been 3-4000 rpm after putting it into PARK. After it starts idling high it starts shifting late. If you shut the engine off and immediately restart it, it usually starts idling fine again temporarily. Engine has normal power and runs smooth and idles smooth. It has also randomly died a couple times while driving at 30-40mph but then immediately restarted as if there was no problem.
It has a P0121 code which is "throttle position sensor switch A circuit range/performance problem". It also has a P0420, "Catalyst System Efficiency Below Threshold (Bank 1) ", which I'm not sure is related to the issue because the check engine light had been on a long time before the idling/shifting issue started happening. Like in the neighborhood of a year and a half before the current issue, but it ran fine the entire time and got 30+mpg on the highway.
First thing I did to troubleshoot was to test the TPS and it seemed ok. Voltmeter readings were .4v with throttle closed and seemed to advance smoothly up to 4.4v at WOT. But, I tested it before the engine was hot and I don't have a Oscope. I then used some carb cleaner and shot it around the injectors and a few vacuum inlets to check for vacuum leaks, to no effect. Engine runs quiet and I don't really hear any vac leaks.
Next, I cleaned the idle air control valve which was pretty dang dirty, but that didn't seem to resolve the issue, although it may have had a slight effect because the issue seems to come and go some while driving now, but I'm not totally sure. I also tested the connector at the IAC and had voltage on all 4 pins between .4v - 11.4v approximately.
Lastly, I got the engine to reproduce the problem and then pulled and then reconnected these sensors one at a time while the engine was idling high:
MAF Sensor
TPS
IAC
Intake Air Temp Sensor
This didn't have the slightest effect on the engine... I'm thinking it might actually be the TPS or IAC but I don't want to just start replacing stuff without knowing damn near certain it's going to resolve the issue. Could a vehicle speed sensor cause this? How I should proceed from here? :?
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I have a '99 Explorer XLT and when I turn the high beams on, the fog/driving lights shut off. Is this normal? Is there a way I can keep the fogs on while the highs are on?
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its 94 degrees outside and I take a ride then when I park the 2003 Buick lesabre v6 3800 custom , I shut it off in my driveway, then as I walked past the car I notice a rubber type high heat smell through the seam in the hood its like a combination of heater or radiator hose and belt rubber smell yet when I open the hood no leaks no extremely hot belt and the hoses just feel normal hot the car runs fine ,no noises oil is high on the mark not low on antifreeze nothing , I just got this car in the early spring and never noticed it until now mid Summer high heat weather .is this normal?
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The car (97 Buick Le Sabre with 3800) ran fine and started fine until one day last week it did not turn over. After about 10 minutes it was tried again and this time it did start. It was used regularly with no issues for the next few days. Then one morning it didn't start (or turn over) and hasn't really been successfully started since. The battery is good and cable connections too. So my mechanic figured it was probably the starter. Since I had this weekend free, me and my friend replaced the starter. But it still did not start. We then turned the ignition to run and crossed the solenoid terminals with a metal tool and then the engine turned over and ran for a brief period (around 5 to 10 seconds) but then killed.
This procedure was duplicated a few times. So we figure it wasn't the starter, the battery, or most of the larger cable connections. The tension wheel had failed on it in the recent past so we wonder if when the belt blew out if it had hit and weakened a wire somewhere that has now failed but difficult to locate. We also wonder if the car's security system maybe failed and it thinks the car has been stolen. This might explain why it won't start or stay running when ignition is circumvented. Note: the panic button on the key fob works properly. All of the fuses were checked and none were found to be blown out. What the root cause of this problem might be and how to repair it?
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Just purchased a 2009 Sonata and the dealer did not give me an owners manual. In a recent phone call he promised to be mailing one so with that said I've looked on countless forums about this tedious issue I am having. I can't seem to figure out how to turn my high beams on. All other lights are working correctly and from a diagram i read online its like any standard high beam, just pull the lever forward. I've tried every which way but can't even get the light on dash to turn on telling me the high beams are even available. I clearly see them in the front of my car. And driving at night they would make a big difference on those back roads.
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My truck only has low beams. When you move the stalk on the colum backwords it changes nothing, when you move it forwards the low beams go out but the high beams do not come on.
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My sons 97 LeSabre runs and drives like a top most of the time. Twice now though over the last three months it has died on him. Both times the car stalling out has been preceded by a high pitch whining noise that seems to be coming from the fuel pump. The first time, it would restart and run for a few minutes with the whining sound then die again. We towed it and let it sit a couple days and found that cleaning the MAF sensor may fix it. We did this and it worked.However, yesterday afternoon he and a couple friends ran into town, about a 20-mile drive, to run a couple errands. Drove around in town for about 30 minutes and it started the high pitch whine from the tank again and made it a couple miles across town before it died again. Pushed it around the corner to a gas station and parked it. A few hours later, my wife and I went to go get it, didn't know if I would have to push it or tow it, but I turned the key and it started immediately with no whining noise, so I drive it the 20 miles home without incident. The outside temperature yesterday was in the mid 90's and humid, and thinking back to the first time the car did this, the weather and circumstances were almost identical? When used to go to work out, or to work, or just little drives around there seems to be no problem. The car has even run this 45-50 mile round trip without incident numerous times, but at different times of day with cooler temps, and some lengthy waits between driving times.Does this sound like a fuel pump or sensor that could be failing? And why would it only act up under high temp situations? Almost like it was vapor locked, it had plenty of fuel, and didn't make a difference earlier in the heat even opening the gas cap to relieve any pressure? Completely stumped here?
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I have checked fuse 46 and 47, and installed new headlight bulbs. I have high beams, but no low beams. I have searched this topic but no one has the same prob it seems. My headlight switch has broken. Could it be the headlight switch?
In my manual, it says the 2002 has a fuse panel behind the glove box. I took glove box out but it doesn't look like a fuse panel.
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I have a 00 buick lesabre that I am having problem with no turn signals. It first started with the infamous fast blinker on drivers side, so i replaced all the bulbs , so when that did not fix the problem, i thought it was the socket, but it turned out ok, so i replaced the flasher and after that, I have no blinks at all, haz work but no blinkers. i tryed old flasher but still no blinkers. i checked the fuse that runs the blinkers, it was ok. I replaced it anyway.
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When I turn on my a/c I get a constant clicking noise. Very annoying.
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I have a 1941 Oldsmobile and when I hit the headlight dimmer switch to select high beams my headlights cut out . My car has all original wiring and I suspect a short at one of the terminal blocks. I am unsure how to troubleshoot this problem. I cannot select my model number below I have a model 76 Dynamic Cruiser.
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My car recently started running overtemp not much, but enough to bother me. I flushed the system with no change. after about a week with continued symptoms, my trans started shifting hard between 1st to 2nd and 2nd to 3rd, and running rough in general, sputtering lightly in high gear. I assumed it was running over temp with the rest of the car, so I replaced the radiator and the radiator cap, yet still am having the same problem. Is it still related to the cooling system? if I replace the water pump will i solve my problems, or is it really a hidden trans problem? I'm fairly certain the trans has never been serviced, and I'm reluctant to do so given the high milage, 174,000. The fluid is full, but its very thin, and no longer red, its sort of a pale yellow.
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Pulling into work this morning I noticed my check engine light was flashing. The car (1997 Buick LeSabre, aka The Rolling Couch) was still running and everything seemed normal. I turned off the car and then went back out 3 hours later and tried to start it. It would not start, and the symptom is not one I've had any luck Googling. When I turn the key, it makes a sound, but it's not a click. It's the normal sound when ignition starts, but the engine does not crank at all or turn over. It just makes a single ignition sound and then nothing. Could this be a belt? The starter? I have not taken it anywhere or pulled the error code yet.
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Headlight knob: rotated to OFF
Headlight lever: LOWBEAM position
Expected Results: headlights are completely off
Actual results: headlights are completely off (OK)
Headlight knob: rotated to OFF
Headlight lever: pulled into FLASH TO PASS position
Expected Results: highbeams on until lever is released
Actual results: highbeams on until lever is released (OK)
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I have a 97 Buick Lesabre, when I use the turn signals (Doesn't matter right or left) the arrows on the dash stay illuminated. The turn signals aren't turning on, on the outside of the vehicle either. The hazards work just fine though (Blinking on the dash and outside of the car). I replaced all four flasher bulbs (2 in the back 2 in the front), nothing. I replaced the dual filament tail lights, still nothing. I replaced the flasher unit under the dash, still nothing. Where's the next place to look?
Other interesting information : This happened a day after I took the car through a drive through car wash.-Since I've had the car, the turn signals have never self canceled (As in after executing a turn the blinkers stay on)....
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I hear a noise that sounds like a bad wheel bearing when I hit 68 mph, and it gets worse when I go faster. I've had both bearings replaced, but still hear the noise. It is directly related to speed...the faster I go beyond 68 mph the worse it gets.
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I have a BMP 20th and I notice that I cannot turn on my high beams but I can flash them. What the problem could be? I was planning on installing my OEM HIDs tonight but now I am wanting to get this fixed before I put them in.
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I have a 99 Buick LeSabre and it died while I was pulling into a parking lot. It wouldn't start back up. I tried listening for the fuel pump and nothing. It's not priming or making any noise. Once I got it home I replaced the fuel pump relay. Still nothing so then I changed the fuel pump. Still nothing. I'm stumped. I'm going to check all the wires tonight to make sure I got them on right. Is there any other relay or fuse on these cars that I can check?
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I used to think when I flash it'll turn on the high beam only but that's wrong.
Today I changed the high bulbs 9005 to a brighter pair trying to get a better DRLs, but when I tested the high beam by flashing I realized it turns both low & high beams on at the same time.
I have HID for low beam so that's not a good thing for me to flash. And I think I did it only one time in the past but now I won't do it again. Is it normal?
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