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Car Stalling Problems

When your car’s engine stops when it’s in idle or is accelerating, then your car has stalled. Almost all stalling problems stem from poor fuel-gas mixture, out-of-tune fuel injection or fuel contaminants.

2,010 Questions

What is making the car sputter?

Could be a misfire, which means one or more cylinders are not firing. This could be caused by any number of reasons, from spark plugs to ignition wires to a bad fuel injector. Does it only happen when it is cold? does it shake at idle? It needs to be properly diagnosed, starting with a scan of the computer for trouble codes and sensor values. Guessing and replacing parts that may be good will be much more expensive that the cost of a professional diagnosis. spark plug wires, plugs , coil, injector, etc. Another problem that is commonly overlooked when every engine component seems fine, is a dirty or bad mass air flow sensor.

Why does your car shut off when you park it?

This question makes no sense. Are you trying to say the engine backfires when you shut it off?

** I have a 2000 Silverado 4.3L V6 and every now and again, it cuts off when I put it in park. Initially, I thought that I was "hitting" my keys when I shifted into park. I took all of my keys off (except my truck key) and it still shut off. Any advice would help.

The engine doesnt backfire, it simply shuts off. I can re-start the engine immediately and it runs fine.

A2: There is a starting safety switch to both Park and Neutral. I bet it won't shut off if you simply select N. The switch is probably out of adjustment. I assume you have a column shift. There is a long stem to contact the switch at the bottom of the steering column. When pull, and hold, the shifter all the way CCW to Park, it also disconnects ignition, somehow. When you release it, it goes back to normal. This is why you can restart--you release the handle to turn the key. If you hold the stick back full CCW again, and try to start, and again get no ignition; there is slack in a pushrod or it needs adjustment/switch replacement. My Mom's '78 El Camino got so you had to turn the ignition key realll slowww or it wouldn't start. It was a loose screw at the ignition switch.

Ac blows hot air then you lose power when stepping on the gas pedal?

If the a/c is blowing hot air then first check the freon levels in the system...

If the a/c system is full but shuts off while accelerating then check the power and ground going to the clutch coil and the pressures switches as well....

If the a/c has issues while accelerating then you need to check for a vacuum leak which is a very common problem with a lot of vehicles.........

How do you get the plastic off headlight to clean?

If you've got at least $10 and an hour, it is easy. Your local auto parts store has several Headlight Restoration Kits. Essentially, the clear coat on the plastic or acrylic headlight begins to break down after years of use. That is when oxidation and wear begins to set in. The kits polish or sand away this top layer to reveal a fresh clean layer underneath. The key is to ensure you get a kit with a protective coating to put on top of the freshly polished headlights. Yellowed, dull, or fogged headlights are a safety risk, so when you have a chance, get them clean!

More information at:

Mechanic In A Can (dot com). "Comparing Headlight Restoration Kits"

**NOTE: The plastic on the headlight is usually part of a housing and can't be removed individually, but the entire housing can if it needs to be replaced.**

Your car has high revs even after you have taken your foot off the accelerator what does this mean?

throttle plate stuck?

I'm not sure. When I'm driving, I take my foot off the gas and the car jerks and when I have to stop and I push on the brakes the car revs and jerks forward and occasionally stalls

Why would your car shut down while driving?

Could be the fuel pump. To check for sure take the air cleaner off (or the "neck" that goes to the air cleaner) and spray some carb cleaner or starter fluid in it pointing toward the motor. If it runs for a second that tells you there is a fuel delivery problem. You might want to start by checking the fuse to your fuel pump. Sometimes the obvious can be overlooked.

When my alternator went, my radio first shut off and then the car died

Losing spark, fuel or compression. The first answer regarding fuel loss is good spot to start. Other insights to this: If it cranks but doesn't start, you can eliminate the charging system mention in answer 2. IF it cranks faster than normal but doesn't start, suspect the timing belt.
Guys! One REAL common reason cars quit running while being driven is Broken Timing Belt. Pull the distributor cap and try turning the motor over--if the engine turns and the rotor in the distributor doesn't, the timing belt's your problem.

AnswerThe most likely cause of this would be the ignition control module which is mounted on the side of the distributor - or on some models, it is mounted on the inner fender well. Replacing it will likely fix your problem Answercould there be a problem with the computer in the car ? Mrs. Linn G. Alexander Answerit could be the cooling sensor making the car stall and just stop AnswerIt is losing one or more of 3 needs for combustion: spark, fuel, or compression. I would ten to be suspicious of the ignition module as mentioed above, but can not tell by guessing. AnswerIf the car is a '96 or later model car it can generate OBDII error condition codes. An OBDII compliant code reader is usually required to obtain the error codes. Chrysler vehicles allow you to turn the ignition key on 3 times in sucession and the error code will be either displayed on the LCD odometer display or will flash the check engine light. If the car is NOT equipped with an LCD odometer, the code will only be a 2 digit code instead of the usual 3 digit OBD code. AnswerThere are many things that could do that. I had that problem before which was a ground wire. my car worked great up until now, alot of people are telling me that the crankshaft sensor will shut the car off. the cheapest crankshaft sensor i found was at Canadian tire for 55 bucks taxes in. I'm still workin on gettin that old sensor out tho. AnswerThe 1st generation Neons (1995-1999) are prone to the Crankshaft Position Sensor (CKP) wires melting together. The fix is as simple as separating / replacing the melted parts and ensuring the wires are sealed (Shrink Wrap or Electrical Tape). However, this is also a symptom - Oil causes the wires to melt together. Make sure to fix the oil leak if this is the cause. Other causes include a fault Crankshaft Position Sensor or a Camshaft Position Sensor (CMP), and lastly, the PCM.

Why does your car stall when air conditioner is on?

It sounds like you have a locked up a/c compressor or a bad a/c clutch..........

What would cause a car to shut off while driving including electrical after flashing a momentary oil and engine light and then start up again immediately with no problem?

i had a problem may be similar to that, the problem turn out to be that i had a loose ground connection at the battery, i had 2 thick wires and a skinny wire between them, so the skinny wire was not as thight as the other 2 fat ones. and with the vibration from the vehicle it used to separate for a split second causing my engine to shut off.(that wire was the only path that my engine had for its ground) but after the vehicle stoped moving it would just start again like nothing ever happened.and yes the oil and engine light would come on too.

check your ground conections.if you were making a turn then you may want to look at another reason for that for ex, broken/corroded gas tank bafles. when the bafles go and you make a turn the gasoline would be sent to the side of the gas tank away from the fuel pump causing your vehicle to shut off until the gas returns to the center of the tank .it happens.

Why does engine die when slowing down to turn corner?

It could be watered down gas. It could be watered down gas. It could be watered down gas.

Why would your van just shut off?

It happened to my van a long time ago, after I loosened the gas tank cap, it never happened again. I guess the ventilation or gas tank cap malfunctioned so no air was let in. You can try this one. .

What is wrong with your car if the engine makes a screeching sound and shuts off while you are driving?

The harmonic balancer for the engine may be worn-out or loose, check it out! The noise is likely to come due to the friction.

Blaming the harmonic balancer for this problem is a real reach. The belt is slipping. Tighten the alternator to tighten the belt. There should be less than 1/2 in deflection(amount the belt moves when you push lightly on it) if that doesn't help much, change the belt. Sometimes if they have been slipping for a while, they build up ma glaze on them that will continue to allow them to slip[ and squeal.

Sounds to me like a main or connecting rod bearing seized. If the engine now fails to crank over when you try to start it, it's seized.

What will cause an Engine to not turn over?

Most likely a dead battery or bad cables. Or worse could be your alternator

Where is the idle air control valve located on a 1999 Lincoln Continental?

Follow this link and read all about it and many other things about lincolns. http://www.lincolnsonline.com/tech/tech.html

How to Test brake booster?

Apply vacuum test to the booster. If it does not hold vacuum it is defective. You can borrow a vacuum gage at most auto parts stores.

You could go lazy man's style and just take the vacuum line off of booster. If the brakes are as hard as concrete, then put it back on and the pedal is smooth, you got yourself a decent working unit.

When you start your car why would you have to wait 30 minutes before it will move?

Because your spouse's vehicle is blocking you in?? This question makes about as much sence as asking, "Why is there air?"

95 4runner 3.0 stalls and has a very low idle after a hot restart?

At this point I would only suspect the idle adjustment being set to low. But check the air filter and ensure its clean. If not replace it. Still stalls then adjust the idle up. The big screw on the throttle body does this. Get the car warmed up and then start backing out the screw to increase the idle. It shouldn't make much difference to its cold speed.

If this doesn't work reply to this response with the changes and lets see where I can point you.

88 Chev15004.3-sometimes stalls out in idle at stops turns and reverse can sometimes save by accelerating?

This could be something simple as a vaccum leak, dirt air filter or more complicated as replacing the Idle Air Control Valve. Check your AIR FILTER, replace if dirty or worn out or old. Check your spark plugs, replace if old worn or damaged. Sparks may last up to 5 years or 6 months depending on your engine conditions. Oily plugs are a bad sign. Check your spark wires. If very old replace them. Inspect the vacumm hoses with soap water or shaving cream for bubles, hissss noise or like. If no leaks then think you may need to check the IAC ( Idle Air control valve ) for your car. This in conjuction with computer board are responsible for maintaining a stady idle rpm of your motor and to prevent stalling. Here ! pfarias@alplighting.com

Why does a car take so long to warm up?

Car heating systems usually rely on the excess heat generated by the engine to heat the passenger compartment.

There's a thing that looks just like a small radiator that sits in a fan shroud underneath the dash. When the engine has gotten warm, the coolant liquid that circulates through the engine and this little radiator also gets warm.

And by having a fan blow air through the radiator, you get warm air that can be directed out through the vents in the dash into the passenger compartment of the car.

There's a lot of metal in the engine that needs to heat up before the coolant is warm enough to heat the radiator enough for it to heat the air that you can send out into the cab.