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Re: temp gauge affected by headlight switch? Help me on this one... 200 1993

posted by  someone claiming to be Robb on  Tue Oct 31 14:30 CST 2000 [RELATED]

Don,

You are "the man". Much thanks for the info and pics! Ahh, Control Theory, I think I zoned out in that class - the teacher couldn't make it interesting for me....

I still wonder... I have had many cars that once the thermostat opens - boom it jumps to the same spot on the temp. gauge 365 days a year no matter how you are driving and stays there. Specifically, I now also have 2 Dodge Caravans that behave consistently on the same spot on the gauge all the time. Perhaps their gauges have a much greater range from cold to hot so you don't see the minute flucuations. I wish they'd put numbers on the darn gauges for us engineering types.

Thanks again for your detailed hints on the the compensator board and regulator. I'll dive into this weekend. Now that I've noticed that the fuel gauge seems to also be erroneously moving around I'll concentrate on the voltage regulator and ground but do the other stuff too just because I like to be thorough.

I'll post my results.

Robb





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