car jump starts but wont stay running

A sensor might be faulty as well. Will start without a jump but turns off after a few.

How To Jump Start Your Car With Jumper Cables And Another Operable Vehicle Roadshow

The bike doesnt start charging until 4k rpms or over.

. Under this scenario one of the electronic sensors has gone bad and is causing the cars computer to malfunction and improperly calculate the amount of fuel the engine needs. You may have this figured out by now and not sure this will help but that Jeep needs full voltage for it to stay running. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle.

An expert that got 5 achievements. I wouldnt doubt it is one of these two problems. If you didnt fry your electrical system by jumping from a car that was on the cars alternator output has been argued to fry the motorcycle electrics Google it.

Stopped to get gas and wouldnt start. Took battery home and charged. If you unplug the maf sensor it should allow the engine to receive a default value into the ECU the engine will run.

Ignition System Problems. After a while it will shut off due to a. The current problem here is that my car will start with a jump but wont hold a charge.

It takes a lot of battery power to turn the starter over. You may have a dirty or failing idle air control valve. Up to 20 cash back Im attempting to.

Why does my engine crank but wont stay running. The engine requires the right amount of air and fuel to mix together for ignition. A non self-exciting alternator requires 12V power on one lead to stay energized and in operation.

It could very well be the MAF sensor reading one value for air flow due to air leaks the engine receiving a different amount of air. A bad electric sensor can only occur on a car with a fuel injection system. Joined Sep 2 2009.

There could be a fault in the injection or ignition system a vacuum leak or some other fault. If getting a jump wont start the car there is something else wrong. The second problem could be that your alternator is bad and not charging your battery in this case you will need to replace your alternator.

Put a new battery in it. Car Starts but wont stay running RPM Up and Down. If you jump it due to low or dead battery it will not stay running until it has full voltage even when at low idle.

If you had a scan tool connected it would tell you why. Either the alternator is failing to produce electricity or theres a load pulling more power than the alternators output and thus draining the battery even when the alternator is. Inspect your battery - it should have at least 125 to 13 volts to start your car if it doesnt you will need to replace the battery.

So if you got a jump and your car isnt starting make sure you actually have gas in the tank still. If the car starts it could be that your battery is too weak to start the car but has enough power to run the lights etc. I was told theres a miscommunication between the alternator battery.

2 Jan 13 2012. If there is a fuel leak somewhere then the correct amount of fuel may not make it to the combustion chamber. Vehicles of this type and a dead or disconnected battery will jump-start off of another vehicle then die the moment the jumpers are removed.

13 years of experience. If the voltage drops like you described while the car is running there are only two possibilities. First off stalls can be caused by 50 thingsso guessing is out.

Car started and ran long enough to get home. BMW ACURA Honda Lexus Toyota. My jeep starts but wont stay running.

ACURA Honda Lexus Toyota. Car Starts but wont stay running RPM Up and Down. Similar to the issue with your starter if you have bad.

The 3 core elements for the car to start and run are fuel spark and air. Starts ok and stalls. Both the battery and the alternator can be tested.

Jumped it and it started right up but would shut off after a few minutes under its own power. If one of the three elements fails to decrease or increases slightly the ratio changes and the car will not have a smooth running. All the arguments are the same.

Found negative battery terminal loose and replaced. Other issues with your fuel system that can cause the car not to start include a bad fuel pump a clogged fuel filter bad fuel injectors frozen fuel lines and so on. Check for trouble codes even if you dont see the check engine light on.

Check the voltage at the battery terminals with the engine running after being started with a jump. So letting it idle for 5 mins does absolutely nothing. If its at least 14 volts there is no miscommunication.

These vehicles can be jump-started without a battery and will continue to run once jumper cables are removed. If the car stalls even when the engine is warm the cause is likely a faulty electric fuel pump. If these three elements are available in the correct ratio then the car will run smoothly and will not stop.

First try to get a jump to get the car running. This might be enough to allow the engine to start but not keep running. Also check if your alternator is putting out 138v at idle.

How To Jump A Car