help light problem any ideas

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Apr 14, 2009 | 07:42 PM

harlow77f100

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From: Sulphur springs, AR

help light problem any ideas

Ok so just got a new to me 75 F100 a couple of weeks ago. None of the lights worked well headlights did. So I started working on the lights today replaced the bulbs and two light sockets driver side turn signal and driver side taillight. Ok that got the turn signals working and the taillights. But still no brake lights so tested and replaced brake light switch and heres my problem drivers side works but still know passenger side wires look good any ideas.

Apr 14, 2009 | 07:48 PM

Holiver31

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check all of your grounds

Apr 14, 2009 | 07:48 PM

bulletsneverlie

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Check the ground points, and check the connector points. Sometimes they look good, but they're corroded inside and don't conduct. Check the bulb contact points. Corrosion is a mother on these old beasts. Make sure to use dialectic grease and any connection or socket.

Apr 14, 2009 | 09:25 PM

harlow77f100

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From: Sulphur springs, AR

Would it be a bad ground if the turn/taillight works are they on a different circuit than brake light. I suck at wiring so confusing.

Apr 15, 2009 | 11:47 AM

lasthighboy

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From: NW Kans

taillights are on seperate circuit. T/S, brake, and hazard are all on same circuit. check wiring to pass side w test light.

Apr 15, 2009 | 03:57 PM

harlow77f100

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From: Sulphur springs, AR

Ok I checked the green wire to passenger side flashes on test light with turn signal on nothing with just brake light on. Checked green wire where it come out of collum same thing does this mean I need new turn signal switch.

Apr 15, 2009 | 04:24 PM

lasthighboy

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From: NW Kans

i doubt it the turn signal is working. sounds like you checked it correctly. not sure how it is wired together. sounds like an open in the brake circuit before the turn signal circuit. maybe somebody else can help.

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Apr 15, 2009 | 07:03 PM

harlow77f100

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From: Sulphur springs, AR

Ok I need new turn signal switch sucks cheapest one I can find is 50. Column is out of auto PO put it in so I need switch for auto right. Truck is MT.