Buick - Lesabre :: 2003 - Trans Started Shifting Hard / Sputtering Lightly In High Gear
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.
View 19 RepliesLeSabre :: 03 Buick 3.8L - High Idle And Delayed Shifting
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? :?
Buick - LeSabre :: 1999 - Cannot Turn Off High Beams Via On / Off Switch
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 ...
View 1 RepliesBuick - Lesabre :: 1997 - Stalls Out When Hot Outside Preceded By A High Pitch Whining Noise
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?
View 5 RepliesBuick - LeSabre :: 2003 - Keeps Dying Intermittently?
My friend has a 2003 Buick LeSabre 3800 with approximately 80000 miles. He complains that the car will die while he is driving. I work at a local parts store and have access to code reading scanner. We've checked the fuel pressure at fuel rail several times and is okay. The only thing that seems odd to me is that he says the tach will quit working. It dies like the switch has been cut off. He can wait, sometimes 10 to 30 minutes, and the car will restart. I had him to come by work when the car acted up so I could scan it. It gave crank sensor out of range, and indeed the tach was not working. I turned the car off to scan, and restarted. The tach was working.
View 2 RepliesBuick - Lesabre :: 2003 - Radio Has Red Flashing Light?
I purchased a nice 03 Buick lesabre with only 40,000 miles mint , well after driving and enjoying it now for 2 months, I now have a red flashing light left top side of my radio. However it still works and it does go off when I start the engine, what does this mean because I pulled out the manual and this is what I have, is it a normal thing that was just delayed in happening for some unknown reason?
Buick radio flashing light : JPG1023x697 75 KB
Buick - Lesabre :: 2003 - Won't Start And Security Light Comes On
My buick has a weird problem, basically it wont start the security light comes on, nothing and i mean absolutely nothing works inside of the car and the power window circuit breaker under the back seat is burning hot, obviously its an electrical problem but I am thinking its the body control module but I want to be sure .... what it could be?
View 5 RepliesBuick - Lesabre :: 2003 - Occasional Skipping When Accelerating
Back in April, I posted this comment about occasional skipping when accelerating: "I have a 2003 Buick LeSabre with 187,000 miles (mostly highway) that skips/jerks sometimes when accelerating, even when in cruise control. It only does this every month or so; and, of course, never does it when the mechanic is in the car. No warning lights have ever appeared and my mechanic says no codes have shown up in three diagnostic tests.
In the last 1.5 years, the following items have been replaced: power steering rack, oil pressure sensor, FE control arm bushing, intake manifold gasket, oil pan gasket, transmission mount, water pump, rear struts. In 2010, an alternator, thermostat, mass air flow sensor and front brake pads were installed. Oil is changed as scheduled; tires are rotated as required and car is serviced at the first sign of any problem. Other than occasional skipping, car is in pristine condition and rides like a charm. The most recent skipping occurred March 29th when I was 200 miles from home. It lasted sporadically for about 10 miles and did not occur in the other 190 miles."
Based on the advice of responders, I had the fuel filter replaced and the car never skipped again ... until today, three days after the rotors and brakes were replaced. Like before, there have been no warning lights and the skip, which can occur when braking or when in motion, occurs sporadically. It might happen several times in a mile and then not happen again for some time. The car now has 192,000 miles. Is this the transmission, a problem with the recent brake installation or something else?
Buick - Lesabre :: 2003 Sporadically Skips When Accelerating - No Warning Lights / Alerts
I have a 2003 Buick LeSabre with 187,000 miles (mostly highway) that skips/jerks sometimes when accelerating, even when in cruise control. It only does this every month or so; and, of course, never does it when the mechanic is in the car. No warning lights have ever appeared and my mechanic says no codes have shown up in three diagnostic tests.
In the last 1.5 years, the following items have been replaced: power steering rack, oil pressure sensor, FE control arm bushing, intake manifold gasket, oil pan gasket, transmission mount, water pump, rear struts. In 2010, an alternator, thermostat, mass air flow sensor and front brake pads were installed. Oil is changed as scheduled; tires are rotated as required and car is serviced at the first sign of any problem. Other than occasional skipping, car is in pristine condition and rides like a charm.
The most recent skipping occurred March 29th when I was 200 miles from home. It lasted sporadically for about 10 miles and did not occur in the other 190 miles.
Buick - LeSabre :: 2003 - Fuel Gauge Needle Go To Full Then Drop / Way Down To Empty
I have a 2003 Buick LeSabre Limited, and everything was going fine with it till recently. The Fuel gauge started to go haywire as in the needle would go to full, then go back down to a Quarter, then back to 3/4, then drop all the way down to Empty, this is still occurring. At first I believed it to be the fuel level sensor, but then I started to notice something else.
A warning message came on stating that the oil level was too low, but when I checked the oil level it was fine, and last night when I was driving with the air conditioner on, I hit a bump and the air conditioner stopped working. I pushed the off button, and was successfully able to make the air conditioner to come back on with out having to restart the car.
The horn has also started to go in and out, and I do not know if they are all linked together by a type of computer or if they are separate.
Dodge - Neon :: 2003 - Cooling System Leak / Burning Rubber Smell Coming Through Vents
I have a 2003 Dodge Neon and recently had transmission work done on the car. When I got the car back the radiator cap was left loose, I didn't know this until I took the car for a drive and it overheated. I let the car cool down, replaced the coolant, and made sure the cap was sealed down. The car now has a slow coolant leak, when I turn the car off I can see it drip underneath for about 2 minutes and then it stops. Also, after the car heats up to running temperature I get a burning rubber smell coming through the vents. What could this be? The car only has 70,000 miles on it and I would like to keep it going if I can.
View 6 RepliesBuick - Lesabre :: Stalls Out When Get Up To About 20 Mph
I have recently noticed that my car will stall out when I get up to about 20 mph. My car starts fine, no check engine light on. I has a tendency to just die in the middle of the road at times too. I have changed the spark plugs, spark plug wires, and a new fuel filter. Do I need to change the mass air flow sensor? Or the crank position sensor? I have no problems starting the car either. Runs good when it runs.
View 10 RepliesBuick - Lesabre :: 1998 - Where Is The Relay Box
Where is the relay box for turn and hazard signals in 98 Buick LeSabre custom? my hazards ans signals don't work switched fuses but didn't work. Where the box is I've never owned a Buick til now. there isn't one under the hood just the main on the driver's side.
View 1 RepliesLeSabre :: 96 Buick Periodically Stalling / Relays Getting Hot
1996 buick lesabre custom 3800. The car stalls from time to time, and the fuel pump, power windows, power seats, and power mirrors all stop working. Most people who have had this problem cleaned the ground bus on the drivers side under the carpet. I have done this, and the car has not stalled yet, but I haven't driven it far because I have noticed the fuel pump relay and power windows relay are getting extremely hot to the touch after 5 minutes or so of driving. Why these relays are getting so hot? I cannot afford to keep getting the car towed home.
View 1 RepliesLeSabre :: 2001 - Buick Losing Coolant
My 2001 Buick Lesabre has always shown to run exactly normal on the temperature dash unit until recently. I checked my coolant level and it was a bit low, so I added. After I filled the radiator I have noticed a coolant leak spot on my driveway, after I drive it now. I have removed the gravel shield and have tried to pin point exactly where the leak is coming from, but cannot. Now, each time I park, after driving it, I put a clean piece of cardboard under it to try to see exactly what area the leak is coming from. Last night I put the car on ramps and crawled under to discover that the leak is located just above the oil filter and is actually dripping from the oil filter, but I still cannot see the exact location of the leak.Actually the leak does not appear until about an hour after I park the car, so it sounds like something is contracting after the engine has cooled off, but what? The leak has seemed to be getting worse each time I drive the car. How can I determine exactly where the leak is coming from without just changing a bunch of parts.
View 10 RepliesLeSabre :: Buick - Brake Fluid Keeps Leaking Out
I currently have no brake fluid in my car because it keeps leaking out (leaks while actively being used). The leak is between the power brake booster and the brake master cylinder... Is there any type of gasket I can get to better fill the gap between the two pieces of metal? Is there some way to tell which of the two pieces is creating the leak to narrow down which to purchase?
View 1 RepliesLeSabre :: 97 Buick Won't Start - Fuel Pump Does Not Run
My car would not start yesterday, and I realized the fuel pump was not running. So I bought a new fuel pump today and put it on, the car still won't start, the fuel pump still does not run and I have been told to check the relay. I cannot find the relay for this car.
View 7 RepliesEngines - Buick - Lights - Lesabre :: 1995 - CEL On And Car Would Cut Off Every Once For A While
I have a 1995 buick Lasbre and my engine light is on my car would cut off every once and a while. but when it does it cranks right back up like its a sortage in the wires people say it is an electrical problem i thought it was my crank sensor but my car has never had a problem cranking up it sounds wonderful when it cranks up so whats my problem....
View 3 RepliesBuick - Lesabre :: 1998 - AC Sometimes Stop Blowing
My '98 Buick's AC works well when I take it to a mechanic. But when I leave after they say, 'it seems fine now,' a few miles later the cold air starts blowing through the defroster vents, still nice and cold. Then it comes back down to the dash and then goes back up to the defrost. But sometimes it stops blowing altogether, it doesn't blow anywhere! Nothing, not even warm air. And then later everything is fine again, until it happens all over again and I take it to another shop when I hear 'it seems fine now.'.
View 2 Replies