Loss of One or More HVAC Blower Motor Speeds on Chevrolet S10

Problem Description and Possible Solution

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

Problem Data
RepairPal Verified
Average mileage: 131,804 (25,000–231,000)
10 model years affected: 1991, 1993, 1995, 1997, more1999, 2000, 2001, 2002, 2003, 2004
25 people reported this problem
Viewing 1 - 10 of 10 comments
Hvac blower motor won't turn on, no matter what speed setting it is placed on.
Blower will turn off after 3rd blower speed, what is wrong and how do I fix this problem?
blower motor does not turn on
1993 chevy s-10 2wd truck, no heat nor a/c, compressor does not run regardless of switch position.
a/c and heater blower wont work
Just the highes speed don't work. The other 2 does fine.
This has happened to me as well. The fix is a simple $18-$25 part, the Resistor Block, which is located inside the back Firewall adjacent to the Blower Motor Housing. Two (2) screws and it pops right out. Easy to replace. This will usually go before the switch which is much more difficult to access inside the dasshboard.
Lost 2nd speed.
Live with it. 1,3, and 4 speed are sufficient.
Blower motor resistor
broken swicth vacum leak replace