My blower fan quit last night. My buddy said to tap the housing on the firewall but I couldn't find it. I checked all hvac fuses on inside fuse panel and they were fine. I checked fuses under the hood and found a 30 amp hvac fuse blown. Replaced and fan works again but I did find a slight burning smell coming out of vents. I asked my friend what could cause this fuse to go and he said, "blower motor or resistor block." I am not sure what he means by this. How do I troubleshoot this? How easy is it to check and replace the resistor and where is it located? Blower is working fine on all speeds, is there anything else I could check on it ?
SOURCE: Guages or HVAC Controls don't light up
Good Day,
Sounds to me like your headlight switch needs to be replaced. When you turn your light's on (parking or headlights) the switch sends two outputs, one to the exterior lights and the other output is your cluster and hvac illuminaton. You can get a new switch from a dealer for around 30 bucks new. Here's a pic of what you need:
You do need to remove your outer dash panel to gain access.
Sorry this posting is so short, just worked a 14hr day. If you need further help with replacing the switch I can walk you though the process.
Hope this helps for now.
SOURCE: 2005 GMC Envoy SLE blower fan speed #5 is not working
More than likely this should just be your resistor. You have different sized coils on the back of your resistor for all the different fan speeds. if one of them burns out or breaks then that certain speed will not work.
SOURCE: 1998 GMC Jimmy hood release cable broken
Remove the cable from the latch and any hold downs or clamps. Push the rubber gromet through the fire wall into the car. Remove the handel assy. and pull
the cable assy.out through the fire wall. Now, if the
gromet can be removed. You can decide if you wan't
to put it back from under the dash, or under the hood.
Whatever is easiest for you, but if it can't, it has to go
back from under the dash. Hope this helps.
Good luck.
SOURCE: 2005 gmc sierra...took blower motor
their is a blower motor relay in the fuse box under the hood more than likely your problem!
SOURCE: --2005 GMC Envoy AC Trouble--(compressor
SOUND LIKE BAD BLOWER MOTOR RESISTOR.CHECK BLOWER MOTOR HI BLOW FUSE AND RELAY.YOU WILL NEED OWNERS MANUAL IN GLOVE COMPARTMENT TO LOCATED BLOWER MOTOR FUSES AND RELAYS.
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