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EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 3947
Experience:  20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified
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2002 ford F350 head lights flickered at idle time, then one

Customer Question

2002 ford F350 head lights flickered at idle for Long time, then one low beam went out, was running with high beams until I could change bulb, then one morn no lights on low or high but markers are on, changed bulbs, still nothing, hold dimmer pulled toward you and brights come on, driving home yesterday lows came on for 30 Min then went out. What could be the problem?
Submitted: 2 years ago.
Category: Ford
Expert:  EricFromCT replied 2 years ago.

Hi. The turn signal switch is most likely the problem

Expert:  EricFromCT replied 2 years ago.

High beams and low beams go through the switch. You can use your test light to check for power entering the switch and power leaving to the headlamps.

Customer: replied 2 years ago.
Ok thanks, ***** ***** perform the signal switch test
Expert:  EricFromCT replied 2 years ago.

Ok. I have access to wiring diagrams if that would help you. There is a small additional fee for the diagrams in pdf format though. Let me know if that may interest you. Thanks.