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Will a diesel engine run with battery cable disconnected if the alternator is bad?
Wiki User
∙ 9y ago
A vehicle may not run if the battery cables are disconnected with or without a bad alternator. The best way to test an alternator is by voltage output when applying a load.
Wiki User
∙ 9y ago
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After changing alternator how do you reset 98 gtp engine?
You do not have to reset anything. but you should have the battery disconnected. and once you reconnect the battery it will reset your computer.
Why does your car turn off when you unplug your battery?
It shouldn't. When the engine is running, electricity is supplied by the alternator, not the battery. If the engine dies when the battery is disconnected, the battery and/or some related part (such as the voltage regulator) is bad.
How long does a diesel engine have to charge for?
It doesn't, unless it has a faulty alternator/battery or isn't driven.
Will a 2002 chrysler voyager still run if you take the battery cables off?
Maybe. The engine computer is the voltage regulator, with the battery disconnected it may not be able to control the alternator output voltage correctly. This could cause it to go low or high.Maybe. The engine computer is the voltage regulator, with the battery disconnected it may not be able to control the alternator output voltage correctly. This could cause it to go low or high.
Does Chevy Caprice engine run when battery is disconnected?
Yes chevy caprice do run when battery is disconnected as long as the cars alternator is in working condition to keep the car goin once turned on.car won't turn on without battery just like any other.
What is wrong with a 1984 Nissan 300ZX non-turbo that will only start on a jump and continues to run with the positive battery wire disconnected?
You have a bad battery. Keep that up often enough, and you are going to end up with a bad alternator. Alternator's don't like being operated without a load going to them. Running the engine with either of the battery cables disconnected is not good.
Does the motor charge the battery when you run the engine?
No, the alternator recharges the battery. Of course the alternator is turned by the engine.
What will happend if you disconnect the battery terminal from battery while engine is running?
Nothing, if the alternator is good the engine should keep running.On the other hand if the alternator is bad the engine will die/stall. In a modern car with sophisticated controllers (ECM, BCM, TCM, etc.), NEVER DISCONNECT the battery with engine running. These controllers have semiconductor chips that are sensitive to voltage spikes and transients which become pronounced when battery is disconnected.. Even the power diodes in the alternator can be stressed and eventually damaged.
Why is that in diesel engine the vacuum assistance or hydrovac is attached to the alternator?
Why is that in diesel engine the vacuum assistance or hydrovac is attached to the alternator? Read more:Why_is_that_in_diesel_engine_the_vacuum_assistance_or_hydrovac_is_attached_to_the_alternator
Should you disconnect your battery if you know the alternator has gone bad?
Only disconnect it when ready to replace the alternator. The primary function of the battery is to store electricity needed to start the car. Secondarily, it stores electricity for use powering the electrical items on the car when the engine is off. If the alternator is not producing sufficient power to run the engine, the battery takes over. Once the battery is drained of its power, the engine will stop. You can jump-start a car whose alternator is faulty but battery is connected, and the car may run for a short time before the battery dies. If there is no battery, the car will start but not stay running once the jump device or cables are disconnected.
I have a 1999 ford f250 super duty truck the battery light is on changed the alternator and battery is good what else could it be?
being a super duty i assume this is a diesel engine. diesel trucks have 2 batteries. did you check both batteries. then check all fuses if it is a diesel engine there will be 2 batteries .did you check both batteries
How do you get the alternator to turn over?
The alternator is run by a belt connected to the engine. When the engine is running the alternator is turning. The alternator is what produces the electrical current that charges the battery & powers everything electrical while the engine is running. the battery is mainly to start the engine.
