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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15133
Experience:  GM Grand Master Technician 2007. 14 years experience.
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1995 Chevy: blower fan..only blow..the highest setting and it

Customer Question

1995 Chevy Silverado 5.7 TBI.....heater blower fan would only blow on the highest setting and it finally bit the dust and now it no longer blows at all.
checked & replaced fuses and all are good.
installed brand new blower resistor 2x
installed brand new fan blower assembly 2x
installed brand new AC/heat control panel
installed brand new fan blower switch 2x
installed brand new high speed fan relay
still nothing works but all I can hear is a click sound near the blower resistor when I turn the fan on from the ac/heater control panel.
Need help...no fan = no heat
Submitted: 6 years ago.
Category: Chevy
Expert:  Cory replied 6 years ago.
Hi there. Have you checked to see if there is power to the fuses for the blower motor?
Customer: replied 6 years ago.
No, because I'm not exactly sure what method but be the easiest for doing that. I do have a simple 1 wire (grounding test light). Would that do the trick ?
Expert:  Cory replied 6 years ago.
Yes that would definitely tell us if we at least have power to the circuit.
Customer: replied 6 years ago.

Should I be testing the purple wire while connected to the fan blower or should I be testing the purple wire disconnected from the fan blower ?

 

Ignition in **ON** position right ???

Expert:  Cory replied 6 years ago.
Yes you can check power there, but if there is no power there check for power on the tops of the fuses to see if there is power at the fuse. Be sure that the key is on and the blower motor is on ( any speed is ok)

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