Arrow points toward the heater core,left I believe. FYI , when mine broke I replaced it with a barbed fitting $.59 and my heat works fine.
This is actually common for most cars. The reason is that the heater pulls heat away from the engine into the car itself.
timing belt has absolutely nothing to do with the heater, there is an idle-up solenoid that keeps the idle from decreasing when the fan is turned on(whether it is the heater or AC), check this solenoid
I had this problem in my 1991 Suburban. It turned out being the A/C, Vent, Heater switch having burned contacts. Had the switch replaced and smell went away.
Open hood . Disconnect blower module located near blower fan. Disconnect, if blower shuts off, repalce module
Yes.
No.
There are two things that can be checked to find out. The first is the relay that runs the blower motor may need replaced and the second is the motor itself needs replaced.
Try reseting the computer. My 92 Deville did that on day and it turned out to be a faulty air compressor drawing to many amps..
What do you mean by fixed front hubs...?...the hubs should be free wheeling while you have the switches in the centre of the hub turned in one direction...and fixed when you have them turned in the other direction...
i just replaced the thermostat in 2004 Chevy truck heater works fine now
there is a bad ground somewhere
No.