My 1995 Sierra blower quit.

there is a big green fuse in the fuse box under the hood. cost about 6 bucks. replace that

sounds like the fuel driver module is on it's way out
mounted on side of fuel pump square box black in colour held on with 4 screws
and silicone style gasket
i havs replace quit a few over the years runing a fleef of small bus with 6.5 diesel engine

A fuel filter won't clog completely in 3 years
and won't get you down to 15# if it did

What is fire?

Voltage to pump or ignition spark?

What about pressure regulator?

I think i may have an answer for ya...Is your truck blowing air at all? if so its not within the blower...the problem is actually the a/c actuator. a little bit cheaper and easier to install...had the same problem with my truck...replaced everything but the actuator which cost a crapload of money and found out it was the actuator. your truck may require an upper and lower so check with local auto parts store...average price run about 60.00 for each.

On the passenger side. Right on top of the black plastic housing. You have to take the glove box, dash, etc. to get it out.
a couple of bolts and disconnect harness and it shouldnt be to hard

high amperage draw. do all the speeds work? if so replace the motor. if not replace the resistor and the motor.

check the fuse in the fan-fan relay-check voltage at the terminals of the blower if you have the voltage problem is to check the blower motor of the blower speed control

first start by check there is power gos to the front head light is yes change the bulb if not there is a conecter located close to the battery chech this also if everything is ok check the fuses under hood and in dash fuse box if everything is good change the light switch (turn signl switch )

i hope its help dont forget to rout me thanx

check rear wheel sylinders for moister. an indicator for a leak. replace it then bleed brakes. refill resivore should be fine then. check front calipers also or leaking line.

I had the same problem change your blower motor resistor.