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Why would your fan belt and alternator belt stop turning and the engine still running?
Wiki User
∙ 16y ago
your water pump and or alternator is frozen ( broken )
Wiki User
∙ 16y ago
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Why does the alternator light come on when you shut the key off?
The alternator light goes out on starting the engine when both the ignition source, and alternator are producing positive voltage. When the ignition switch is turned off, the engine, and of course, alternator are still turning momentarily. The alternator is then still producing positive voltage, while the 'off' ignition switch has assumed a negative state, creating a closed + - circuit, allowing the lamp to light. This is a very normal state, and has occurred for many decades, even back to the days of cars running generators, prior to the alternator. Absolutely nothing to fear.
Why does the engine make a humming noise near the alternator after you shut down the VW 2001 Beetle 1.8T?
Your engine might make a humming noise near the alternator after you shut it down because the fan is still running or because the fuel pump is shutting down. Another cause for the humming noise could be the AC motor turning off.
Why is your Cadillac STS still reading 11.9 battery volts?
Bad alternator? A fully charged battery should read approx. 12.8 without engine running With engine running should read approx. 13.8-14.2 volts
How do you diagnose bad alternator?
Start the truck then disconnect the battery if it's still running the alternator is good
Replaced battery in 94 Camry and battery indicator still on?
Check alternator output with a voltmeter A fully charged battery should read approx. 12.8 volts without engine running Should read approx. 13.8-14.2 with engine running
Why does my car keep running after turning off the key. dieseling?
Your diesel vehicle might keep running after turning off the key because there is still enough fuel in the system to allow it to idle. In many diesel vehicles, the engine is stopped by choking the fuel.
You changed battery but battery light still came on then it went off why?
Check alternator with a voltmeter A fully charged battery should read approx. 12.8 volts without engine running With engine running reading should be approx. 13.8 - 14.2 volts
If the battery is going out will the alternator still power the car?
the battery job is to start the car so the alternator will kick in after the car is running
Why is the radiator fan still running after turning it off in Honda acored 94?
The fan will run anytime the A/C or defroster is on. It may also run after you shut the engine down if the engine is running hotter than normal. I would have the cooling system serviced.
How do you test a John Deere alternator to see if it is putting out a charge while still mounted?
Your 12 volt battery should be about 12.5 volts without the engine running. Test and verify it is. Now with the engine running test again, Voltage should now be around 13 to 14 volts. If not, then your battery or alternator are bad. To check a battery try charging it with a battery charger.
How do you check the bad battery or alternator?
The simplest method to check where the problem lies, remove the negative cable. If motor still running problem lies with battery.if not running problem lies alternator .
Do running headlights drain the car battery?
No. The power to illuminate the Daytime Running Lights (DRL's) is supplied by the alternator, and does not have to be supplied by the battery. Once a vehicle is started and the engine is running you could remove the battery from the car entirely and everything requiring current would still operate.
