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My wifes cars headlights and blower motor cuts out for a few…

my wifes cars headlights and...
my wifes cars headlights and blower motor cuts out for a few seconds while driving (at night !) the lights and blower go out together. i replaced the the resistor pack for the blower motor a few weeks ago (blower only worked on high) but i cant figure out why that would effect the headlights or if this is a totally seperate issue. its a pontiac grand prix v6 2003 THANKS!
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Answered in 18 minutes by:
2/11/2010
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 30,420
Experience: GM Grand Master Technician 2007. 14 years experience.
Verified
Welcome. THe heater controls and the DRL feature are on the same ignition feed through the ignition switch. Try it in setting 4 and 5 on the heater and see what happens. If it changes with the speed, then you need a new switch.
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Customer reply replied 8 years ago
your saying have her drive with the fan on 5 then on 4 and see if the problem is still there? part of the issue is its done it several times...but never when i have been able to look at it. is there any tests i can do so i can correct the problem before she is driving at night again? what is the DRL?

Yes, if the issue seems gone in 5 but there on 4, then it is very likely the switch.

The DRL is daytime running lights and the module is powered of that feed.

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Customer reply replied 8 years ago
ok. is there anything special or tricky about replacing the ignition switch?
Not overly, please take the time to check and try this. I don't like guessing at part unless they are under 30 or so, and this is over.
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 30,420
Experience: GM Grand Master Technician 2007. 14 years experience.
Verified
GM Tech (Cam) and 87 other Pontiac Specialists are ready to help you
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Customer reply replied 8 years ago
right on... thanks for your help.
My pleasure.
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