Fan only works on setting 4 then makes grinding noise after a couple of mins
#1
Fan only works on setting 4 then makes grinding noise after a couple of mins
Hey all I am new to the site but have found it very helpful already. Have an 01 blazer and the heater fan works on only the fourth or highest setting and then after a couple of minutes it makes a nasty grinding noise. It sounds like it coming from the glove box or around there. It does produce heat though. Any ideas would help.
Thanks
Thanks
#2
Sounds like the resisters are blown on your fan. The resistors should be located in the heater duct passenger side, you'll have to remove and replace that
#3
I agree it sounds like the blower motor resistor. There is a good write up of how to replace one in the DIY section of this forum. Not a very hard job.
#4
Awesome thanks a ton for your help and that write up is amazing
#5
If the motor is making grinding noises, the bushings are probably worn out. When this happens it causes amperage draw to increase, which is usually what burns out the blower motor resistor.
Thread
Thread Starter
Forum
Replies
Last Post
ezye1230
Steering, Suspension & Drivetrain
0
05-10-2015 10:14 AM
biglfla
2nd Generation S-series (1995-2005) Tech
3
01-06-2011 05:58 PM
offskooring
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
2
07-31-2009 07:59 PM