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15 def fuse keeps blowing

Tiny
BLACKR0240
  • MEMBER
  • 2001 CHEVROLET TRACKER
  • 113,000 MILES
The heater doesnt work at all switch out the 15 def fuse in the fuse block and it blows fine for a little bit then blows the fuse again. What could be the problem?
Sunday, September 11th, 2011 AT 9:29 PM

3 Replies

Tiny
PROMECHANIC
  • MECHANIC
  • 536 POSTS
If the fuse keeps blowing then that means that something in the system is drawing too much current. It is most likely the blower motor or the blower motor resistor. It will need to be tested to be sure.
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Sunday, September 11th, 2011 AT 9:30 PM
Tiny
BLACKR0240
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  • 2 POSTS
Do you know where those are located and how to test them and a spec at all?
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Sunday, September 11th, 2011 AT 9:34 PM
Tiny
PROMECHANIC
  • MECHANIC
  • 536 POSTS
The blower motor is located under the dash on the right side. There are usually a couple of screws that hold it in.
The resistor is near the blower motor in the blower case.
To see how much current it is drawing just hook up an ampmeter in series with the wiring then see how many amps it is drawing.
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Sunday, September 11th, 2011 AT 9:39 PM

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