What causes alternator to hum with engine off?
The hum/buzzing sound, warm alternator case after the engine has cooled and warm output wire indicate that the alternator is drawing current, and quite a bit to heat up the alternator/output wire, after it as been “turned off” (via the ignition switch).
What does it mean when your alternator is humming?
If you’re hearing a grinding sound in your car, this could indicate that the alternator is going bad. The grinding sound may be caused by a worn-out bearing. If you hear any type of whining or grinding sound that’s a good indication that your alternator needs to be checked.
Does a bad alternator make a noise?
A healthy alternator will make almost no noise as it is running and will never be audible over the normal noise of your engine. If your alternator is failing, you could hear a few abnormal noises.
Why does my Volvo V50 have no sound?
We have a 2005 V50 and have found that 1/2 of the time when you turn on the radio no sounds comes out (either radio or CD) . This happens equally whether you turn the radio off before the car or just leave it on when the car is off. You have to turn off the car and restart it to get the sound back, but that only works once in awhile.
Are there any recalls on the Volvo V50?
Some problems will only occur after many years of operation, others are related to technical solutions and forced the manufacturer to issue a recall. In the following overview, you will find the most common problems for the Volvo V50, for which Volvo has announced a recall through the EU Rapex system.
What kind of radio does a Volvo V50 use?
Because Volvo does have aux jacks in the other models, it may mean that the radio system in the v50 (under the current design) is not capable of dual input systems (CD / MP3) due to the motherboards themselves. I use the iTrip FM transmitter, and play my iPod back through a chosen frequency on the FM radio.
Are there any problems with my Volvo C30?
Cracks may develop over time in the right-hand drive shaft. In the worst case, the drive shaft may break, leading to … . If you wish to know more about eventual problems of a specific car (e.g. real mileage, potential traffic accidents damages, odometer rollback, repairs, etc.), then we suggest going to HPI-Check.