Light flicker
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Light flicker
Ok on my 03 f150 the left turn signal doesn't work when the head lights are on. When there off they it works. Now when the lights are off and I hit the brakes the lights on the radio and my odometer flicker from bright to dim and so on. The left rear tailight was cracked so I replaced both bulbs and found there was water in the housing so I drained it and covered it with tape until I find a new one. Any ideas? What shorted out from the water?
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Did the problem occur before or after you replace the bulbs? Does it do it in the headlamp switch in the park and headlamp position? If it occurred after the bulb replacement remove the bulbs and see if you still have the same symptoms. Possible incorrect bulb or bad ground at the tailamps.
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Actually what I meant was does it do it with the headlamp switch in the tailamp and headlamp position? First and second position. It sounds like the brake, turn signal circuit is backfeeding into the tailamp circuit either thru a direct short or possible faulty ground circuit feeding back thru a bulb. If the concern exists with the switch in the tailamp position I would start at the rear of the vehicle, at the rear crossmember their is a connector that feeds both tailamps, probably a 8 pin grey connector, disconnect that and recheck for your concern, cluster, radio, t/s issues. note the t/s's will flash fast due to the fact your only flashing front t/s lamps, that is normal. If your concern is gone it has to be a problem at the rear tailamps or harness.
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Ok so your saying to pull the pigtail at crossmember and try to get same flicker of lights on radio etc. And of it doesn't do it then it's somewhere from that pigtail back? Correct?
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Is that the one with the damage. Put a new one in there. Pop out the light switch and test it if you suspect it of Malf. Dryup your connections witha hair drier and clean em, the use a little dielectric grease to help stop corrosion. When you got it all working water proof the connections. Plasti Dip works perty good ? Its $6 at Home Depot. Moisture in the wiring plugs and light sockets totaly messes with ya and creates all kinds of weird things to happen.
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