Weird instrument cluster gauges

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67 ford f100s rule
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Weird instrument cluster gauges

Post by 67 ford f100s rule »

When I turn on my headlights my fuel gauge,heat, and oil pressure gauge all go higher then usual. what could be causing this? :hmm: Also when my headlights are on my turn signal arrows blink opposite of which way a turn them on.
Jeff Penland

70 Ford F100 LWB "Nadine" 302/3 speed with overdrive
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Re: Weird instrument cluster gauges

Post by fordman »

when did any or all of this start? has it always blinked backwards? if so maybe someone switched the bulbs wires from one side to the other side. the gauge problem is a feedback of some sort. thats all i can think of right now.
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67 ford f100s rule
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Re: Weird instrument cluster gauges

Post by 67 ford f100s rule »

i tried replacing a bulb because one sides bulb is out. after that it started flashing backwards
Jeff Penland

70 Ford F100 LWB "Nadine" 302/3 speed with overdrive
If you have to ask you wouldn't understand
"I shall hold the line of right as well as that of glory." English translation of the British Penland coat of arms.
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Re: Weird instrument cluster gauges

Post by fordman »

was it the correct bulb? did it maybe get stuck in the socket funny?
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Re: Weird instrument cluster gauges

Post by TX69F100 »

May be a grounding issue.
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Re: Weird instrument cluster gauges

Post by Doug F »

I had similar issues when I was tracking down my electric problems and it turned out to be the ground. Could be corrosion???
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