2002 Pontiac Grand Prix Heater only works on setting 4 or 5

2002 PONTIAC GRAND PRIX
11,000 MILES • 6 CYL • FWD • AUTOMATIC
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MES71
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  • 1 POST
I have a 2002 Pontiac Grand Prix that has always had a heat issue. At first all settings on the dial worked from lowest or one to the highest or five but a few years back it stopped working at the lower settings and would only turn on when I turned it to a three or higher. Now it started working at a four and nothing lower. At first I thought it was the cheap plastic dial itself that have broken in the past but at this point I am not sure. I have however considered it to be a possible blower motor issue, which if it is could you please tell me where it is located on this year. Thanks for your time.
Nov 18, 2009 at 10:45 AM
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OBXAUTOMEDIC
  • ✓Experienced Mechanic
  • 3,711 POSTS
Hello,

Your problem lies with what is call the Blower Motor Resistor. And if I am not mistaken it is located under the passenger dash in the duct work near the blower. It looks like this...
Nov 18, 2009 at 12:02 PM
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