Help Water suddenly drop below C then go back up
#1
Help Water suddenly drop below C then go back up
My car was first warmed up nicly and I drove it for like an hour. Then suddenly the Water temp gradually dropped below C then go back up to middle . It happed twice that night......... So I wonder what happen. This has never happened to me before.
#4
Check the connection at the housing. It is a single wire. Most likely the culprit. Over time the wire covering gets hard & brittle with the vibrations it can break or become loose. Pretty common problem on any older car.
I just had the same prob on my 240. Just driving down the street it started. Seemed like every time I accelerated the temps went up, when I stopped the gauge dropped. Driving steady it would stabilize. I knew right away it was the wiring. Popped the hood & sure enough the wire was hanging on by a single strand of wire. New connector & all is well. Funny thing is that it happened as soon as I bought my water temp gauge. So I hooked up my new temp gauge & fixed the stock gauge.
I just had the same prob on my 240. Just driving down the street it started. Seemed like every time I accelerated the temps went up, when I stopped the gauge dropped. Driving steady it would stabilize. I knew right away it was the wiring. Popped the hood & sure enough the wire was hanging on by a single strand of wire. New connector & all is well. Funny thing is that it happened as soon as I bought my water temp gauge. So I hooked up my new temp gauge & fixed the stock gauge.
#9
yes by single wire i'm referring to the temp sensor with a spade connector. there are two temp sensors right next to each other. the one with a spade connector (single wire) is the one for the temp gauge. that sensor is most likely bad. i don't believe you have a problem with the wire to it or the gauge but rather your temp sensor is bad.
that is not to say that the other things mentioned are not likely causes, but based on what you've said i believe it's just a bad temp sensor.
that is not to say that the other things mentioned are not likely causes, but based on what you've said i believe it's just a bad temp sensor.
#11
ok not really but no, the sensor (sending unit) only gives a reading for the gauge to display.
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Driftingkid101
For Sale - Wanting To Buy (WTB) Or Trade (WTT)
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06-03-2005 02:45 PM