Voltage drops when blower motor is turned on
Voltage runs at normal can run lights radio wipers doesn't drop when I turn on the a/c or defroster it instantly drops voltage to point that alternator sqweels I replaced ground wire to alternator and to battery neg, the blower motor runs when on but voltage instantly drops when I turn blower motor off voltage goes back to normal. Any ideas I've checked fuses cleaned all connections.
Cars & Trucks
Answers & Comments
Check the internal fuse of the blower ...this not on the main fuse panel...if you look underneath if the blower unit you will find the card fuse...it may be shorting or have water or corrosion on the pcb circuitry.clean or replace...if this does not cure it seems you have a slipping fan belt on the alternator or the alternator is starting to fail.