My car was parked for 5 days. When I next started it there was no response when I depressed the gas pedal--car remained in a rough idle. Had to restart the car three times before it worked but check engine light has not gone off.
View 3 RepliesA couple weeks ago the front brakes were done on the Mazda. Then the wheel bearings needed to be done. I think the shop outsourced what I guess was the packing of the bearings. I paid for the work, and drove away, nearly, but didn't because I had no brakes and there I was pulling out into 5:00 PM traffic. The emergency brake saved me. I walked back into the shop and they discovered the power brake booster had broken. I wonder, because if you drove the Mazda to park it in the shop lot where the customers pick up the vehicles after repairs are made, wouldn't you notice that there is no braking action. The brake pedal was high and hard and there was literally no response when I depressed it.
The shop keeper said, darn I guess I'll have to replace this, meaning pay for it, since it (may have) happened when the bearings were being worked on. My question is, is there any reason why working on bearings might end up breaking the brake booster? Chances are, it was just coincidence, right? or? I don't know. Because the car is old, he had to take several days to find the part. Anyway, he sent me off and told me to drive it carefully. The drive home was absolutely nervewracking and required continual tugging up on the emergency brake stick. I wonder if they despise my car so much now that they are sending me off to drive in it in such an unsafe condition. Anyway, hoping it will be fixed tomorrow. But my question still is ... would working on bearings possibly be cause for breaking the brake booster?
I have a 2006 azera limited with about 63k miles on it and I noticed in the owners manual that at 60k I should have the valve clearance checked and adjusted if theres vibration or rough idle. I currently have a rough idle and more vibration from the engine.
View 1 RepliesI have a 2006 azera limited 63k miles on it and I'm getting a rough idle that sounds worse when the weather is cold. also when I press the gas there is hesitation from the car to accelerate. on top of that, I feel vibrations from the engine all through the driver and passenger seat. When I turn the car on it idles at 1300-1500 rpm and takes about 5-7 minutes to come down. when it does , it idles at 650 rpm. I'm not getting any check engine lights or codes. I've replaced spark plugs, air filter, had the air induction service done at the dealership, and had to have Hyundai put on a new throttle body last march when it gave out on me while at work. the dealership doesn't know what it is and said to use a fuel additive when I fill up the tank. I have and am waiting to see if that does anything. I put in a bottle of CRC 1 Tank fuel system cleaner 2 days ago. I've even changed my brand of gas from exxon to bp just in case. I think it may be a bad hose for the idle and a bad motor mount for the vibration. Could an O2 sensor be going bad?
View 1 RepliesThis morning when I started my car the RPMs were all over the place. The engine would rev to just below 2k and then drop, as it it were gonna die and right before it did, it would rev back up. Then, when I tried to move it, it would not accelerate and would hardly move and while coasting it dies if the clutch is depressed. The car does not die when idling (albeit a very rough idle) but it does when it is moving.
It flashed a check engine for a few seconds at one point but went away and has not come back on. I am running APR Stg 1 and a Carbonio intake. I switched from 93 octane mode to stock and nothing changed.
My brake pedal is making a creaking noise when depressed and can also be heard when letting off the pedal. The noise is not coming from the brakes themselves (front/back are like new) but the pedal area or somewhere behind it. This noise doesn't start until I've driven the car for a little while. The brakes work fine for the most part but sometimes feel a bit spongy if making a sudden or hard stop. The fluid levels are fine.
I'm taking it in on Friday and hoping that the brakes just need to be bled a little or maybe the pedal just needs lube, but I'm worried it might be the booster or master cylinder---if it is one of these?
I finally finished installing my VF stage 2 supercharger. I fired it up and the idle is low (around 500 rpms) and a very rough idle. Throttle response is very slow, when it finally revs the car stalls. I can also hear a leak somewhere near the throttle body. I have an SAI block off plate. 630cc injectors and UM tune. No CEL
View 3 RepliesI 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?
Just got into my 2006 Sonata V6 this morning. 120,000 miles. Drove last night, no problems. Started her up now this morning, noted check engine light and ESC lights on.
Pushed accelator pedal, no increase in RPMS at all. Put the car in gear (auto), car moves forward and backward, but pressing the pedal doesn't increase the rpms at all, so right now its not driveable. Luckily, its in the driveway so I know it could be worse. Took floor mat out, no interference issue there.
I changed the starter solenoid and that was over 45,000 miles ago. Never had that problem.
2009 Limited, 3.3L, 65000 miles.
Car starts, check engine light and ESC light come on. The car has no throttle/pedal response. It will not go above idle speed and it doesn't matter how much the fuel pedal is pressed. So we've turned around and returned to where we started.
The first time I let the car sit for five minutes and started it. No problems for four weeks. Yesterday, we tried that four times and that didn't work. I disconnected the battery for five minutes and the car works normally again.
2008 Hyundai Azera 3.8L V6 .... Purchased in 2009 with 11,000 miles.
In early November 2012, I experienced occasional episodes of a low brake pedal, which did not affect the stopping power of the vehicle. Most of the time, the car stops and behaves normally. However, once in a while, the brake pedal drops/travels farther than usual. (This is accompanied by a heart pumping, "I'm about to blow through this stop sign", moment.) I had a full brake inspection performed at my usual automotive repair shop. Nothing was found to be wrong with the system. Linings were 30% front, 90% rear (rears were done at one year prior, at 48,000 miles). Odometer at the time was 64,850.
I returned to the shop one week later with the same symptoms. Again the system was inspected, and nothing was found to be wrong. Decided to replace the master cylinder as the most logical explanation of the symptoms. Drove car successfully, without symptoms, for approximately 1,600 miles.
Recently, at 66,600 miles, the same problem has returned. Returned to the shop for additional brake inspection. No faults were found in the entire braking system. No stored ABS codes. No visible fluid leaks. Fluid is clean and full. Shop contacted local Hyundai service representative, who claims that this behavior is normal for this particular vehicle. Claims that as the ABS hydraulic pump cycles, the vehicle will feel like is has no brakes (but will stop properly.)
Rough idle whenever you are not in motion. It is very obvious, and a little frustrating as my previous 5 cars never had this issue. I love the car, but the vibration is driving me a little crazy. When the car is in park, and you lean on the outside of the car it is also vibrating heavily. I hate to have them start taking things apart when there is less then a 1000 miles on the clock.
View 9 RepliesGot a 1996 Volkswagen Cabrio with around 125k miles. Recently the check engine light came on. Had the code pulled (P0133 02 Sensor Circuit Slow Response) and reset but it came back on shortly thereafter. I've also noticed that the car idles strangely, generally after it has warmed up a little bit. Basically it will idle rough and sound as though it might choke out but if you give it a little gas it goes back to a normal, even idle.
Right now it's getting around 20+ MPG average which seems a little low but I only purchased it 3 months ago so I don't have much to compare it against. One other thing I've noticed is that the plastic molding around where the gas nozzle goes in is cracked which makes it difficult to fill it up since it doesn't make a good seal unless you position the gas nozzle just right.
Any thoughts on whether either of these problems might be related to the weird idle? How hard is it to change the front 02 sensor?
Friday night my car is fine. Sunday, after some wintry weather, I start the car and it shakes and stalls out. I start it again and notice the check engine light and the ESC light is on and the car doesn't respond to the gas pedal. No response to hitting the ESC light. Runs rough like it was 25 years old. I limp around the block and decide not to drive it. I hope it's a really simple inexpensive computer chip replacement....
View 4 RepliesHave noticed recently a "slipping" of sorts of the tranny while shifting or if I release the gas pedal, then lightly accelerate again.
My 2001 Sebring has had these symptoms for years, but have been explained off as being a habit with the Chrysler electronic transmission...
I have owned my 2011 Azera Limited for 12k miles. It has been a great car except for the rough ride and road noise. I have rotated my Michelin MXV4 Energy Plus Greens ( P235/55R17) every 6k miles. I was told, by the dealer, that the ride is because of a "European Suspension Style design", which calls for a stiffer ride but more control. I asked Michelin about this and they said the tires are made up of a new type compound which might make them ride a little harder. They suggested it was in the design of the car also.
After getting the run around from everyone, I went to and old retired Michelin Dealer/Owner, who I've known for years, and he said, forget these tires, they will cup easily and always run rough. Look for a brand with a higher speed rating, you'll get a better ride but expect less mileage out of them since they probably will be a performance tire. Tire sidewall stengths have changed so don't think a higher rating will make a stiffer sidewall. This is not true today at all.
Rough start like some thing missing, check engine light came on, shut off car checked my oil, ok, restart runs smooth but check engine light stays on, went to dealer 8 mile drive, car ran fine ????
View 12 RepliesI have a 1994 Volvo 940 and have previously owned a 740 for many years. I've only owned this car for about 1 month. The car appears to have been well cared for. Doesn't leak a drop of any fluids, everything works, and mostly a really nice old car. What happens is that it idles rough when it's cold. In fact, I have to pump the gas pedal to keep it going. When I first start off, the performance is less than what it should be too. Once it get warm, it mostly runs fine.
I have so far replaced, the Plugs, Wires, Cap & Rotor. All the vacuum lines, crank position sensor, Air Mass Meter and the fuel filter and most all the fuel lines too. The Fuel Pump Relay was replaced but I removed it and saw a few cold solders and fixed those but no changes in performance. Before I replaced the Air Mass Meter I brought it to local shop and they returned a readout of 2-3-2 which I'm understanding means running too lean. That's why I replaced the Air Mass Meter. (I did notice a big improvement once I replaced the Air Mass Meter too.) It was interesting that when I replaced the Distributor Cap, I noticed like black carbon in there and I'm not sure what could cause that. Although, I did find the previous plugs were not all the same. Three of them were high spark performance plugs and one was just normal
I pulled the Idle Air Control Valve and plugged one side to ground and the other side to 12V and noticed the flapper moving when powered on/off. The previous owner told me he replaced both fuel pumps about two years ago. It also looks like the fuel regulator valve is mostly new.
I'm guessing now that I have a problem with the Idle Air Control Valve or perhaps the Fuel Temp Sensor under the intake manifold. I purchased the Fuel Temp Sensor and just have not installed it yet. I really don't want to remove the intake manifold but I know it's not going to be that bad. I know that it could be carbon build up on the intake valves but I'm not quite convinced yet. I put some fuel cleaner in the tank to see if that works and so far nothing yet. The car only has 150K on it and I was told that during the owner before me did do highway driving.
When it's warm, the car does run very very well. The idle is still a bit quirky even when warm. For instance, when I power on the A/C, the idle RPM doesn't increase like I expect that it should. (It did on my 740) ... I'm still thinking maybe it's the Idle Air Control Valve too. Perhaps it's intermittent or do I understand that they can gradually open and gradually close?
2013 tdi 6mt. I am noticing that my clutch clicks when the pedal is depressed. it does not happen when I first start driving in the morning, but it seems that once the cabin is warmed slightly it starts then clicks each and every time. It is annoying and it appears to be related to the different temps outside vs the cabin. I did not notice it during summer or early fall but it is cold here now.
View 24 RepliesI just changed the rear rotors and pads on a 2010. Mileage is 145,000, owned since new. It seems the ASC/TRAC light now flashes when pedal is depressed (put car in drive in garage - depress pedal - one beep and light flashes). I had trouble with one of the the caliper pistions, and screwed it all the way out and lost 1/2 teaspoon of brake fluid, so I may have introduced air into the line. Would this cause this? Is there anything unusual about bleeding brakes (as compared to non-regenerative braking cars)?
View 1 RepliesBut when I take my foot off the brake pedal , its just seems rather noisy (clunky). As if VW forgot to put some rubber or something to prevent this clunky sound. (it just sounds cheap)
My jetta and tiguan never seemed like this. Have to stick my head under there and see whats up