When the heater is on for any extended period, the headlights go out?

1995 OLDSMOBILE CUTLASS
86,000 MILES • 4 CYL • 2WD • AUTOMATIC
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1995 Oldsmobile Cutlass Cierra 2.3 mileage: 86,000. I have replaced the dimmer switch which is also the headlight switch, and the turn signal twice now. It seems that when my heat is on for any extended period, my headlights go out; not the parking lights or interior lights, just the head lights.Please help! That includes the brights too. If I turn the car off for a while to cool, they work again.
Nov 9, 2010 at 12:40 AM
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Check the main power wires by the starter. You may have a bad connection, also check ground wires.
Nov 9, 2010 at 12:43 AM