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1994 Jeep Grand Cherokee Car runs when the positive battery cable is removed so you thought the alternator was ruled out but when you give it gas and the rpm drops the volt meter drops and car turns o?
Wiki User
∙ 13y ago
Unhooking a battery cable with the engine running is a bad idea. The voltage regulator in the computer will go full charge ( over 16 volts ) with out the battery in the system. If the Jeep is dieing at idle, it is most likely not the alternator. You need to check the idle motor that sticks in the back of the throttle body.
Wiki User
∙ 13y ago
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How do you take off an alternator on 2001 jeep Cherokee?
on my 01, i removed the battery and gained access that way. hope that helps.
Does a computer reset after an alternator is replaced?
The computer only resets when the battery is removed. The alternator just charges the battery, so if the battery is left connected when the alternator is replaced, the computer should not reset.
Why is battery light on after key removed on my Porsche 944?
bad alternator
Will a car keep running if the battery is removed?
Usually yes if alternator is good not a good idea alternator can burn out all your components without the battery to keep the voltage down
Can an alternator be directly wired to a battery?
Yes, as long as the diode in the alternator has not been removed. Alternator products AC, the diode switched it to DC which is used to charge batteries.
What causes the battery to go dead in a 1993 Mercury Cougar when it is parked the alternator seems to be working fine could it be a relay?
An alternator can charge normally but can still drain a battery if the diode(s) are defective. Try this: remove the(red) positive cable from the back of the alternator and then touch it to the post that you removed it from. Remember, this is hot so don't touch it to anything else. If it sparks this indicates the alternator is pulling current, and is bad.
What causes the battery light to come on when both the battery and alternator check out okay?
The alternator may be putting out some amps, but the regulator inside is failed. The alternator is the first thing to replace when the battery lamp comes on in these vehicles. Also make sure the battery is not leaking acid. Remove the positive and negative cables from the battery and look for corrosion. If corrision is found, you'll need to replace the battery and also take the battery cable covers off to clean the contact pads down to bare metal. Make sure all corrosion is removed. Russtech67
How to replace alternator on 2001 Pontiac Grand Am?
Disconnect negative battery cable first. Locate alternator. locate belt tensioner. Use rachet to retract belt tensioner so belt can be removed off alternator. Remove alternator mounting bolts. disconnect positive cable and field wires from alternator. Remove alternator. Reverse to install. Removal of negative battery cable first prevents a short should the wrench touch metal or car ground. Some mechanics just remove the positive cable but risk a dead short shoud the wrench touch vehicle ground.
How do you replace the alternator on a 1994 Mercury Villager?
the alternator is removed from below and there is three bolts (10 mm socket) that need removed. one of these bolts is on the other side of alternator. use a small mirror to see this bolt. Don't forget to disconnect battery!!!
How does the motorcycle charge a battery?
Once the engine is running it mechanically turns an alternator. The alternator generates a current which powers the motorcycle and also recharges the battery.When removed from the motorcycle the battery will need to be recharged using a specialist battery charger which plugs into household mains.
How do you replace the alternator in a 85 720 2.4 liter 4wd?
disconnect positive cable on battery,remove top bolt that goes thru bracket on alternater and push alternator and remove belt.remove bottom bolt ,but first remove wires from alt. and remember where they go,after bottom bolt is removed,then pull alt. out.
I have a 93 Lumina 3.1L that will only start if boosted but the battery tests okay yet if you turn on the headlamps or touch the brakes the car stalls is this a bad wire or alternator?
I would start by having the alternator tested after it has been removed since that is the most common problem. There is a possibility that the wire going from the positive post on the starter to the back of the alternator could have a break in it but it is less common.
