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My temp guage has quit working. When the engine running, the gauge stays in the middle normal range. Even when I unplug the water temp sender, then turn the key on with engine off, the guage still reads normal. When I turn the key off, the gauge returns to cold position. I tried grounding the wire to the sender and it makes no difference, guage still reads normal. With the key on, that wire has .3 volts on it.
Hi.Quote:
Originally Posted by John165
Water temp switch, or sender?
We have three sensors. I, unfortunately, have the same problem as you.
A water temp switch which trips for AC Kill + fans on Hi - this is apparently near our radiator? Or so I've read. I haven't seen it though.
We have an ECU-only digital water temp sensor, with a 3pin connection IIRC.
And a temp-gage only sender - this is near the top drivers side edge of our valve cover, by a harness, a little hard to get to. Mine was filthy and covered with oil, and even shooting simple green + pressure washing it and wiping it all off, my gage is still in middle-limbo.
Good luck.
Quote:
Originally Posted by orxon
It is the water temp sender with single wire in the location you described. I have searched the service manual but couldnt find any info on this problem other than the wire diagram and thats it.
It's a dummy gauge anyway, put a good digital gauge in with a new sending unit and you'll be a lot happier.
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