Buick - Regal :: 1996 - Sulfur Smell - Rough Idle?
I own a 1996 Buick Regal with 132k miles on it, 3.1L six cylinder. The other day I was doing some general maintenance and noticed that the exhaust smelled like sulfur (rotten eggs). Now, I am loosely familiar with the causes of such a thing but not well enough to diagnose it properly the first time. The car has been idling rough since I got it (almost a year ago now), I have a feeling that it could be the O2 sensor causing the rough idle and the sulfur smell but I am not completely sure. I should have one of those fancy three-part injector cleaners done?
View 6 RepliesRegal :: Buick 1995 Shuddering / Rough Idle And Lack Of Response When Accelerate
I have a 95 Buick Regal, V6 3.8 Liter. The symptoms are the following: stuttering idle. And lack of response at times when I try to accelerate. Like sometimes I'll be driving on the highway, and having no problems. Then I'll be going up a hill at around 55 mph, and then the car will shudder as I try to maintain a speed of 55 mph. So I have to ease off the accelerator and slow down. At first I thought this was a transmission problem, but I am guessing it's the same problem that causes my choppy idle.
So I had this acceleration problem on the highway when I was going up a hill. And a weak idle. These problems have been going on for several months now. They were annoying, but didn't seem that serious. Then all of a sudden, on a rainy day, the car was really responding poorly to acceleration at all speeds. I was able to drive around, but I couldn't count on the car responding right away when I hit the gas pedal. And the car would shudder at times. Then, I didn't drive the car for a few days, and then it was dry, no rain, and the car ran better. So I am thinking humidity makes the problem worse.
I have also noticed over the past few months, that the car runs best when I start it up after a few days of not running it. Then if I drive the car a few miles and let it sit for about 2 hours or so, it would idle weakly when I would start it up again. The car's been doing that for several months now, but it wasn't really affecting the drivability or the response of the car when I hit the gas pedal.
Now it's gotten much worse. So, I've already replaced the following items myself to no avail: mass air flow sensor, oxygen sensor, and egr valve. I am guessing the next thing to fix is the pcv valve. But I also think it might be the fuel pump. My first guess though is the pcv valve. What else could it be? And is there any easy way to test to see if the fuel pump is going bad? Or should I just take out the pcv valve and see if it looks bad?
Buick - Regal :: Rough Idle / Misfire On Cold Start - Leaking Fuel Injector(s)
1991 Buick Regal, 3800 V6
Having a rough idle on a cold start. After some research and closer inspection of the vehicle, I'm quite certain I have at least one leaking injector that is flooding a cylinder and causing the car to misfire on a cold start. I'm also not at the gas mileage I should be at.
So I'm wondering, is fuel injector replacement as straightforward of a job as it looks? Any major issues I could run into in doing a replacement?
I'm planning on replacing all six injectors (I can get them for $50 each buying online with a discount code), but given that the vehicle is so old am I better off just replacing the faulty ones? I'm assuming pulling the spark plugs and seeing which cylinder is wet will tell me which I need to replace.
And one more question: Is there a way to depressurize the fuel system when I park the car for the night, thus preventing fuel (or most of it) from leaking into the engine until I get this fixed? I've read that just unscrewing the gas cap can depressurize the system.
Buick - Regal :: 1998 - Steering Wheel Randomly Locks Up While Driving
I have a 1998 Buick Regal where the steering wheel randomly locks up while I am driving it. I usually stop the car and start it back up with success. The last time this happened was after I had the supercharge engine replaced. Once it locked up it I tried to start it up. The first time it did not restart, but the second attempt worked. I have taken it two really good mechanics and neither were able to diagnose the problem. I cannot remember if I am running the air conditioner when it happens. I know that sometimes I am. What could be causing my car to randomly lock up like this?
View 2 RepliesBuick - Regal :: Idles Rough And Little Hang-up When It Shifts
My son is about to purchase his first car. A 98 Buick Park Regal. Feels like it idles rough, and has a little hang-up when it shifts. Seller claims it's due to needing a transmission mount replaced. Does this sound viable?
View 4 RepliesRegal :: 2001 Buick Making Some Noise / Rough Drive
2001 Buick Regal , 125000 miles ..
A couple weeks ago I notice that my car has started making some noise and has become a rough drive. Whenever I rev, especially between 0-30 mph, its like a mini jackhammer, or a sputtering/rumbling sound when I drive.
What it could be, and what I should do?
Buick - Regal :: Rough Idles And Misfires On Cold Starts
1991 Regal, 3800 v6.
So here's an interesting observation. When i turn the ignition to ON, I hear no sound nor feel any vibration from the fuel pump. Is there any scenario where a fuel pump fails to prime yet kicks into gear after a start? So, I've got rough idles and misfires on cold starts. Before I start replacing parts my diagnostic plans is as follows:
Remove and inspect spark plugs.
Inspect and test starter coil/distributor (still have to research how to do this)
Test resistance on fuel injectors.
Test pressure drop on fuel rails.
Test compression for possible small head leak.
I'm wondering, if I do have a tiny head leak that is letting in a drip or two of coolant after hours of the engine sitting, will I be able to see this on the gauge doing a compression test? I've never done one before and still need to buy a gauge, but maybe I'm better off just doing the other tests and if they all check out I can be certain it is a minor head leak.
My assumption is that I have a leaking injector; just trying to do things the proper way.
Buick Regal :: 1995 - High Rpm When Idle, But Only After Driving
The equipment:1995 Buick Regal Custom 3.8
I noticed a year ago that my car would randomly stall out coming into work after a 20-25 minute drive. It then started to idle really high, very rarely. So i cleaned the throtle body, new air filter, new fuel filter, sparks, and wires. This is about where my expertise ends.
Its seemed better, however, it would act up now and again (stall) but I was fine with it.
Recently I have noticed that the car idles really high 1.5 in drive (compared to 900) and 2k in park after I have drove for 20-25 mins. So I put the computer to the car and all I have is transmission error codes which I have had since I owned the car at 80,000 miles and I am now to 160,000 miles. This car has been pretty good to me because it starts, goes forward, and backwards! What else can you really ask for. A better idle maybe?
Buick - Regal :: 2001 - Idle Right After Startup But Die Once Put It In Gear
2001 Buick Regal with approx 250,000 miles. 3.8L V6. Non supercharged It's my son's car. Used to be mine, I bought it with 19,000 on the clock.
The battery succumbed to the cold weather last Monday. On Tuesday, I put a new battery in, which itself now works fine. However, since then, the car refused to idle decently. It'll idle right after startup, but once you put it in gear, it'll die. When you start it, it seems to idle normally, you can let it warm up a bit and it'll settle down to about 900 rpm. BUT! Once you put it in gear, it'll stumble and die.
This problem started after battery replacement, so I have to wonder if it's somehow related to that. It ran fine before the battery died. I checked everything over thoroughly, and visually everything looks OK. No loose wires or hoses, etc.;
Today is the first time I've had to work on it since the new battery, so I thought I'd get it out there. I'm getting ready to go put a scan tool on it and will report back with those results.
Buick - Regal :: 1998 - Clatter Sound When Car Is In Gear And At Idle
I now have an annoying "clatter" sound coming from my supercharger cone housing ONLY when the car is in gear and at idle (i.e.,: stop light,etc.).. Had a new serpentine belt replaced 6 months ago with new water pump.114K miles, great condition otherwise.
View 1 RepliesStalling - Starting - Buick - Parkavenue :: 1997 - Randomly Runs Rough During Rain / Won't Start The Next Day?
About 2 weeks ago my 1997 Buick Park Ave (115,000 miles) began running bad during a heavy rain storm. It was running fine. Then all of a sudden at a stop light the motor hesitated and wanted to stall. I nursed the gas peddle and limped home and turned the car off. The car hesitated and sputtered all the way home as if I was running out of gas.The next day the car would not start. It turned over but would not start. I tried starting the car for three days. My mechanic friend later diagnosed the car and stated the computer was not functioning correctly. He replaced the computer. The new computer seemed to correct the problem.
The car ran great for the next 2 weeks. Yesterday, it was raining hard while I drove the car about 150 miles without any problem. Then suddenly again the motor started running badly. Again, the motor wanted to stall and hesitate as if I was running out of gas. I limped home again. This morning I tried to start the car without any luck. In addition to installing a new computer, In the last 2 months I have changed all the fuel injectors and installed new spark plugs.I have also changed the fuel pump and repaired the fuel tank. My mechanic say the cam sensor and crank sensor are operating correctly. There is spark coming from the coil packs and to the spark plugs. I do not want to randomly change parts.
Buick - Century :: 1992 - Medium Rough Idle?
I have a 92' Century w/107 K miles that has a medium rough idle. This is a summer use vehicle for me. I have done the normal maintenance on this motor w/ new plugs and a good Napa wire set. Any bad vacume lines that I can get at have been replaced including the vacume tree on top of the motor. Has anybody had coil issues or ground issues with this motor?
View 2 RepliesBuick - Century :: No Start When Damp Or Rough Idle After Starting
When damp or foggy, my 1990 Buick Century 3.3 will either not start or start and idle rough. Spraying WD-40 on coil packs and wires work. I tried click and clack's method of misting water on the 3 coil packs and wires when idling, and got arching on middle coil, # 2 wire to top of coil pack. Do I need to replace that coil, or just the spark plug wires? The slight mist of water on that middle coil stalled the engine, and it would restart after WD- 40 was sprayed on the coils/ wires.
View 2 RepliesBuick - Century :: 2001 - CEL - Burning Smell - Loud Rough Idle?
I own a 2001 Buick Century Limited that has 208k miles on it. A couple days ago I started the car up at a friends house and noticed that it had a loud rough idle and that the check engine light came on. When I drove the car home, the CEL would flash when I accelerated and I could smell something burning. When I released the gas pedal and coasted, the flashing CEL would return back to a solid state but I could still smell the burning. When I would accelerate, the CEL would start to flash again. Whenever I was stopped at a stop sign, the flashing CEL would again be solid and there would be a loud rough idle along with the same burning smell. Am I looking at an engine replacement or an easy fix? One problem or could it be multiple problems?
View 9 RepliesCentury :: 98 Buick Custom Hard Start Under All Conditions / Rough Idle And Stalling?
[URL] I even pulled the same P0170 code. And what I need to do before I spend a boatload of money and wind up sleeping in my car instead of driving it to work or lack therof is to start a troubleshooting list starting from where Sabot's update left off, i dont even know where the vacuum line is that he mentions and if i sprayed carb cleaner on it would i get a jump in engine RPM or a stall as a test?
What I have done: Cleaned MAF sensor, changed fuel filter.
What I have not done: Checked all vacuum lines, Tested fuel pressure, Tested for compression issues due to blown head gasket.
there is also a puffing noise coming from the exhaust side of the engine, im gonna grab a bottle of baby powder this afternoon and test for air leaks, i dont believe it is a misfire...
Buick - Skylark :: 1991 - Lopes At Idle When Warm And Runs Rough At Times
'91 buick, 3 spd. 0 acceleration in 3rd, trouble code says TCC curcuit. Lopes @ idle when warm, runs rough @ times. many new sensors, timing chain & sprockets, still, the loping.
View 1 RepliesBuick - Lesabre :: 1994 V6 Smooth When Idling In Park But Rough Idle In Gear?
1994 Buick LeSabre Custom 3.8 Litre V6 with 103277 miles.
It runs smooth when idling in Park, rough when I put it in gear when I am stopped (either drive or reverse) has hesitation when accelerating, it smooths out again when driving then it starts to drive rough at about 55 MPH.
Mechanic told me it was the plug wires. I replaced those and the plugs. This fixed the hesitation when accelerating issue, but the other issues remain (now even seem a little worse) I thought the plugs and/or wires were bad, so I rechecked the gauge on the plugs and traced to make sure I had the wires hooked up right. Everything seems in order.
I have added fuel injector cleaner, and changed the oil, oil filter, spark plugs, spark plug wires, air filter, flushed the radiator, and changed the thermostat. (For a tune up since it has admittedly been a while)....
Regal :: 1995 Buick Not Cranking Over?
About the Car: It has 101,00 miles on it. I haven't own this car for long (less than a month). I bought it pretty cheap to do some grocery shopping with. I have no plans to drive it more than 10 miles in a trip. I have a bicycle with a trailer, but there are days in the winter when the weather says, "No" to bicycling. I had the fuel pump and filter replaced at a shop when it wouldn't start a couple weeks ago. They said the fuel pressure was low, and it needed to be replaced. It was fine for a little while, but then it wouldn't start for the past three days now. No cranking at all. I can turn on the radio and roll windows up and down, though. I do remember seeing a Check Engine, Battery symbol sign, and a couple other lights off-hand. I'm at work right now.. so I'll have to go home to see if the Security light also was there, too.
Also! I did find an electrical line that did not go anywhere... not sure if that has anything to do with the fact that there is no window washer fluid tank (wipers do work).
After reading a little about other Buicks in the forum not cranking, I will definitely try the Security Light issue after I get home from work.
Regal :: 1996 Buick V6 Overheating Really Fast
I have a Buick regal 1996 v6 3.8l . SO my car tends to over heat really fast with the reservoir still nearly full of coolant also my fans also turn on really late.. Ive came down to the conclusion that it might be the temperature sensor idk whatelse to do. Ive changed the thermostat about a month ago.
View 14 Replies