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What will happen if you replace an alternator without disconnecting the battery cables?
Wiki User
∙ 12y ago
If you are careful and do not let the positive cable to the alternator come in contact with the motor or frame, nothing will happen. It is just a lot easier and safer to disconnect the positive cable from the battery. It saves possibly shorting out the cable and possible ruining the battery.
Wiki User
∙ 12y ago
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Will charging a car battery without disconnecting it from the car damage the alternator?
No
How do you replace the wiper switch on a 1998 Cadillac DeVille without setting the air bag off?
Start by disconnecting the battery.
Can you reset a 2001 Oldsmobile Intrigue computer without disconnecting the battery?
Yes, with an OBD II reader. Disconnecting the battery won't reset it.
What is wrong with my 1986 300zx if when I take the jumper cables off the car dies and my battery is brand new?
Your alternator has failed, and the battery has drained from running the vehicle without being able to recharge it. Replace the alternator and the battery should be fine.
How do you find and replace a shorted and burnt lead to an alternator on a 1990 Pontiac Bonneville with 3800 engine caused by replacing without disconnecting battery?
Most of the time you burn the fuseable link when this happens. The majority of the time this is bolted to the positive post of the starter. There will be a large wire that leads directly to the battery, then at least one more bolted to the same post, one of which leads to the alternator. It is possible to replace the burned section, check the parts store for a replacement fuseable link.
How do you replace an alternator in a 2001 Nissan Maxima?
* Disconnect the negative battery cable * Raise the car and support it securely on jackstands.Remove the lower splash shield beneath the alternator and the right-side inner fender splash shield * Remove the drivebelt * Disconnect the electrical connector and the alternator output wire from the alternator * Remove the engine cooling fan and shroud * Remove the air conditioning compressor mounting bolts (without disconnecting the refrigerant lines) and slide the compressor forward * Remove the alternator mounting bolts and remove the alternator from the engine
How do you replace an alternator in a 1999 Nissan Maxima?
* Disconnect the negative battery cable * Raise the car and support it securely on jackstands.Remove the lower splash shield beneath the alternator and the right-side inner fender splash shield * Remove the drivebelt * Disconnect the electrical connector and the alternator output wire from the alternator * Remove the engine cooling fan and shroud * Remove the air conditioning compressor mounting bolts (without disconnecting the refrigerant lines) and slide the compressor forward * Remove the alternator mounting bolts and remove the alternator from the engine
Can you charge battery without disconnecting from car?
yes as long as the key is off
How do I know if if my car battery or alternator is dead?
Fully charge the battery Check with a voltmeter (should read approx. 12.8 volts without engine running) With engine running and good alternator reading should be 13.8-14.2 if the battery is dead the car wont start. replace the battery (preferably with a new one) run the car and if it dies or wont crank again its the alternator (or possibly the alternator belt is slipping)
Can a bad alternator drain a good battery?
It doesn't actually drain the battery, but without a working alternator to recharge the battery it will only discharge as the car is operated.
Can a car be driving without a battery?
if you have a good alternator a vehicle will run without a battery, however I wouldn't recommend doing it. On most vehicles the alternator will charge at too high a rate with out a battery installed. This can and will damage any electronics.
1991 Geo Metro alternator problem your alternator smoked you replaced it but it happened again if you let it idle a minute it runs fine for awhile then it loses power and overheats the alternator?
If the battery is sulfated (or otherwise faulty) to such an extent that it calls for a continuous charge, the alternator never gets a chance to switch off. With the resposibilitiy to run continuously the alternator overheats and eventually fails. Never replace a faulty alternator without also checking the battery.
