car jump starts but wont stay running

Only show this user. 2 Jan 13 2012.

Car Won T Start With Jump Here Are The Possible Reasons

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.

. Use the gas pedal to help the engine start. If the car runs and functions normally and the battery does not go dead you just found the problem. Immediately go for a 10 minute drive.

Have someone turn the key while you are checking the battery voltage. When your car engine starts but stops afterwards whether immediately or after a few minutes there could be one or more specific systems or components behind the failure. 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. There can be numerous other reasons why your car wont start after a jump many of which have nothing to do with your battery alternator and starter. Car Starts but wont stay running RPM Up and Down.

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. Up to 8 cash back 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. Up to 25 cash back Car will take a jump and start but wont stay running.

Just got home after driving for an hour went back to drive out after about 10 minutes and car wont start. 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. If the car stalls even when the engine is warm the cause is likely a faulty electric fuel pump.

Joined Sep 2 2009. I was able to start it quick but then I was driving down the road and it stalled on me again while driving. I wouldnt doubt it is one of these two problems.

Replace the battery if its more than say four years old. - Answered by a verified Infiniti Mechanic. Do this quick test unhook the hot lead from the alternator and then hook up your charged battery.

Many including motorcycle manufacturers say do not jump from a car. When you start your car the battery loses its electrical power to run the engine and. 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.

When your battery dies and you get a jump to start your car up again 9 times out of 10 the reason it wont start is because your battery is simply unable to hold a charge any longer. First try to get a jump to get the car running. Your mechanic can diagnose the exact cause of the problem.

Because you disconnected the battery you lost the long trim valueyou will now have to relearn the idlestart the vehicle idle it to 1500 RPMhold for a minuteidle should stabilizeturn on AC let it idlefor a minutenow your done. Both the battery and the alternator can be tested. No fuel in gas tank.

If getting a jump wont start the car there is something else wrong. It takes a lot of battery power to turn the starter over. In circle with parenthesis around.

This might be enough to allow the engine to start but not keep running. If a battery jump-starts and keeps your car running but the car cant start again the battery could be. The gear is stuck in park key fob wont lock or unlock the cars.

If you unplug the maf sensor it should allow the engine to receive a default value into the ECU the engine will. Your Alternator Is Faulty. Reasons Why Car Starts After Jump But Wont Start Again 1.

Many say if it must be done - do it with. Yesterday I ended up driving over a curb after a couple of hours my car was okay but then it stalled on me at a light. Check for trouble codes even if you dont see the check engine light on.

You may have a problem beyond your starting system. 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. 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.

Be sure the hot lead cannot or will not ground itself as it is a direct connection to the positive terminalbut easy to do just for a quick test. For 1996 Jeeps the OBD-II engine computer ECUPCM re- boots and the idle settings are deleted when you. 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.

There could be a fault in the injection or ignition system a vacuum leak or some other fault. 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. 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.

Up to 25 cash back Car will take a jump and start but wont stay running. A sensor might be faulty as well. If there is a fuel leak somewhere then the correct amount of fuel may not make it to the combustion chamber.

Voltage is not the end-all on whether or not a battery is dead when its not under load. 1 let the battery run down by leaving the lights or radio on 2 disconnect the battery for an extended period of time 3 or when the battery goes bad and needs replacing. A bad electric sensor can only occur on a car with a fuel injection system.

Why does my engine crank but wont stay running. Battery is good and altenater was replaced a few months ago. Now it starts but wont run.

If the voltage drops like you described while the car is running there are only two possibilities. Even if that doesnt fix the problem you were probably getting close to needing one anyway. All the arguments are the same.

I bet you see it drop to 3 volts. ACURA Honda Lexus Toyota. The engine requires the right amount of air and fuel to mix together for ignition.

New Battery But Car Won T Start Without A Jump