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Q: If you put a new alternator in and a new volt reg what would cause a 91 f250 diesel to not charge?
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Why would a 1996 3500 dodge manual diesel not charge?

Bad alternator? Bad battery (Unable to take a charge) Bad fusable link?


Would a faulty battery cause a diesel to stall while driving?

No it cannot unless alternator is not charging the only power a diesel requires is for fuel cutoff solenoid


What would cause the battery to not charge even when the alternator tests good on a 93 Mercury Cougar?

the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.


What would cause no output from an alternator on an 88 monty Carlo besides the alternator itself?

The positive cable between the alternator and the battery has an open circuit or break. There also is a set of wires that plug into the alternator that turns it on when the car is running. Wiring problems here can cause a alternator not to charge on the vehicle but works fine on a test stand. Some cars the alternator light in the dash causes the alternator to kick in when the engine is started. A burned out light in the dash causes the alternator not to charge.


What would cause the GEN light to come on on a 1997 Dodge Ram 2500 Cummins Diesel?

The Alternator is not putting out enough voltage. If you recently replaced the alternator with a "new" remanufactured alternator that one could be bad to your truck somewhere to get it tested.


What causes the Charge System light to come on?

A bad alternator/generator would cause a 'no charge' in the system, which would drain the battery while running. Also a shor tin the wiring may cause a false indicator light.


What would cause the wait to start light flash the truck not to hold a charge and the truck not to shift into OD 1992 Dodge Cummins?

alternator and od solonoid


99 astro van and it not charging?

If you have already checked the connections on the battery I would suggest testing the alternator and the battery. If the battery will not take a charge or the alternator will not give a charge you could have similar problems.


What would cause a 2001 dodge diesel truck to lose power then beacome ok again with power but lose voltage gauge?

go have your alternator tested. when they start to go out the alternator will create alot of drag on the engine but then work fine and the engine wont have the drag but the alternator wont put out the correct amount of amperage and the votage will drop increasingly


Can a faulty alternator drain a new battery?

It can, though it is unlikely -- the alternator and the voltage regulator would both have to be faulty. A faulty alternator will not charge a battery, though, so it may seem normal until the charge put into the battery at the store runs out.


Will a bad alternator cause new spark plugs to smoke?

Spark plugs don't smoke. A bad alternator would cause a dead battery.


What would cause your 98 Honda civic dx to not hold a charge on battery-you changed alternator and battery is not holding charge-electrical system is going up and down-in other words when lights are o?

Have you verified that the replacment alternator is working? Test both the alternator and the battery. If a battery is allowed to go completely dead and then it sits for a few days it will "sulphate", meaning that the lead plates turn to lead sulphate, making them unable to hold a charge.