This is a warning for anyone who drives an older or high mileage vehicle.
I drive a 2006 gmc envoy denali, approx 205 thousand miles.
On Wednesday on my way to work, I had an electrical
fire under my dash. I managed to put it out but I wanted to make everyone aware of what I believe to be a hazard. After doing a quick web search I found at least 5 videos discussing how to change the blower motor resistor pack on the envoy/trailblazer series vehicles
Every video I checked showed a fan speed failure on one or more speeds, requiring the changeout of the resistor pack; this isn’t something new, resistor failure has been around for ever. But, in watching the videos, in every case i saw the connection point showed severe overheating and in most melting of the plastic.
I will be taking mine apart today and will post pictures.
My main point is this... from the time I smelled a faint burning electrics smell to open flames under the dash was less than 2 minutes. The cab was filled with smoke making it hard to see and breathe.I managed to get pulled over, vehicle turned off, found the flames and put them out, im not sure this could have been done on a busy highway. I was on a 2 lane 50mph road at 5 am with no other traffic , and i knew how to get to the blower assembly behind my glove box.