My 95 Windstar has 120,000 miles and the temperature gauge is erratic. It
never reads high but kinda jumps around real fast and actually goes kinda
low. The head gaskets were replaced at 70,000 miles and I had the water pump
replaced last year. I always lose some antifreeze and top up the overflow
container every once in a while. The gauge has been erratic now for a couple
of years and like I said it never goes high. Any idea what might cause this?
I too have a 95 Windstar, do you have the 3.8l as well?
My dash temp gauge is also flopping around all over the place
intermittently. Like your's, mine never's reads over-temp.
I attached an OBD-2 monitoring computer to the system, and watched the
internal computer generated engine temperature, and this reading is
constant and passes the "reality / common sense test"
I believe the computer temp and dash temp gauge use two different
sending units. I've played with both and don't see any obvious
problems. (Btw, I think the dash sending unit is the one with just a
single wire on it..)
I'm starting to suspect the actual dash temp gauge as the culprit, but
since I haven't replaced the sending unit it could be that or the
connector / wiring still..
In any event, your not alone, and if I ever get around to solving this
problem, I'll update the list.
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