Why is my engine stalling after replacing the battery?

severe cases of stalling after replacing the battery may require that your throttle body or your idle air control valveâ be cleaned out. over time, a large amount of carbon can build up inside these parts, pushing them beyond the limit that the computer can adapt to.
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Why is my car stalling after battery replacement?

Even if you have only disconnected the battery for a short amount of time, they can potentially lose the memory that was stored in their VRAM. This also could include the settings for the engine's idle, which would cause your car to stall.
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Do you need to reset car after changing battery?

Yes. You will need to reset your settings. Usually the dealer can do it free of charge but no promises. If you take a battery off and put a new one on, if there was anything hooked up the the battery, i.e. the hose you are speaking of, reinstall it.
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Can a battery make a car stall?

A bad battery is one of the most common reasons that cars stall. Most people think that if a battery is dead, the car won't start. Truth is, if your battery is going bad,your car will run but you're at risk of stalling out.
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What causes engine stalling?

Some common reasons for motor vehicle stalls include: An empty gas tank. A fuel mixture that isn't rich enough (this is usually the cause of cold stalling and intermittent stalling) A faulty fuel pump, alternator or EGR valve.
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Toyota / Lexus Rough Idle After Battery Change/Disconnect - Idle Reset Relearn Procedure



Can a battery cause a car to shut off while driving?

Yes, a dead battery will cause your vehicle to function progressively worse until it finally grinds to a halt on the side of the road.
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Do car batteries need to be programmed?

Changing the battery has nothing to do with programming a battery. If the car was flat dead with a battery that lost all of the power because the dome light was on, then when jumped the vehicle will run fine. What may need programmed when the battery is replaced is the key fob.
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How long does it take for a car computer to reset itself?

The readiness monitors will remain until the car has been driven long enough for the computer to evaluate the various system and sensors. The amount of time can vary based on the vehicle. In some cases it can take up to 100 miles for all of the computer monitors to completely reset.
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How many miles do I have to drive my car to reset the computer?

Here's something you probably don't know: after clearing the car's computer you will need to drive for about 50 to 100 miles. As you drive your car the computer will monitor all the sensors and register the results.
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What to do after changing the battery?

After replacing a car battery, you should run the car for about 30 minutes to allow the alternator to fully charge the battery. Usually, a battery replacement also causes the vehicle's computer and radio to reset. This might mean that you have to reset your radio presets.
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Can disconnecting battery cause rough idle?

When you disconnected the battery, the idle control was reset to factory and will idle differently unless you relearn the idle again. After cleaning the parts out, then start and run the engine at 1500 rpms to warn engine for a few minutes, and then let the car idle with all accessories off for two minutes.
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How can you tell if your alternator is bad?

7 Signs of a Failing Alternator
  1. Dim or Overly Bright Lights. ...
  2. Dead Battery. ...
  3. Slow or Malfunctioning Accessories. ...
  4. Trouble Starting or Frequent Stalling. ...
  5. Growling or Whining Noises. ...
  6. Smell of Burning Rubber or Wires. ...
  7. Battery Warning Light on Dash.
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Is it my battery or alternator?

If the engine starts but dies immediately, your alternator probably isn't keeping your battery charged. If a jump starts and keeps your car running, but the car can't start again off of its own power, a dead battery is probably your answer.
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How long does it take to complete a drive cycle?

How Long does it Take to Complete a Drive Cycle. Preparation for it will take eight hours but, all in all, a basic drive cycle test should take around 30 minutes to complete, with about 20 minutes of actual driving. Understanding your vehicle's overall health can help you ensure it drives smooth and lasts long.
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What is a ECU reset?

"Resetting the ECU" is the process of clearing all the long term memory from the ECU's memory. These variables trim idle speed, fuel, spark, and more. The ECU will also store trouble codes for diagnostic capability.
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What would cause engine to shut off while driving?

There are several possible reasons why an engine might suddenly stop. These include an empty fuel tank, a faulty crankshaft sensor, or a faulty alternator. Whatever the cause, if it happens, it is important not to panic and to move to the side of the road and the nearest safe spot.
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What would cause a car to stall while driving?

There are a large number of reasons why your car might stall while driving. It could be a dead alternator, a bad coolant sensor or lack of fuel, just to name a few. Is your car stalling while accelerating? If so, then it could be a major vacuum leak, clogged fuel filter or a bad fuel pump.
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Why is my car shutting off when I come to a stop?

Why does my car keep cutting off when I stop? If your car shuts off after you stop, the engine is very sensitive at idle. This can be caused by many things but is usually caused by a lean fuel mixture, causing the idle to drop too low. A faulty throttle body can also cause this.
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How do you fix an engine stall?

If it happens to you, follow these six steps:
  1. Step #1: Keep calm. ...
  2. Step #2: Turn on your hazard lights. ...
  3. Step #3: Steer your car to safety. ...
  4. Step #4: Try restarting the engine. ...
  5. Step #5: Shift into first gear and drive away.
  6. Step #6: Diagnose the cause and have the problem fixed. ...
  7. Bad battery. ...
  8. Low fuel pressure.
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Does stalling damage the car?

Stalling a car will not damage the transmission. It may be startling and leave you uneasy, but it should not pose any serious problems. However, there are some things you should know about stalling a car.
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Why is my car stalling while idling?

New Spark Plugs Needed

Spark plugs are in charge of igniting the air/fuel mixture inside the combustion chamber. As you might expect, if they're old and worn, they're less effective at doing their job. This translates to less power for your engine, which can lead to your car stalling at idle.
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