I have an 04 Chevy Silverado 5.3 and I'm having heater problems. I'm not getting any air hot or cold blowing out, but when I get on the highway a very small amount will blow out. Days will go by and then out of nowhere the blower well start to work and blow perfectly fine on all speeds for a day or so and then it will stop.
By Andrew S. from Kansas
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This same thing was happening in my husband's jeep. It was the heater core that had to be replaced.
The same thing is going on with my truck and it is not the blower and it is not the heater cord
The same thing is going on with my truck and it is not the blower and it is not the heater cord
you should check on the heater resistor. 95% it is that, i had the same problem and i change it and the problem was solve.
Try having this done. Back flush the heater core. It cost me $100.00 to have. I had no heat at all.
I am 79, coming on 80 years old and still learning about a car. I own a
Undo the two hoses go to your heater take a air hose blow threw the right one
My 2004 Silverado 5.3 engine I changed the heater resistor for the heater core I also noted that it was melted in the plug was melted so I changed the plug as well one wire at a time to make sure I did not make any mistakes when I was done the heater would still not turn on so I check the heater motor by hot-wiring it and the heater motor turns now I can't figure out where to go from here I took apart the heater controls clean the contacts put it back together hooked it up but I'm not getting any power from wherever to the contacts which I have no idea what to do with this if anyone has an idea please
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