try to test my "autozone" temp guage out of the car to see if it's accurate in a pan of boiling water w/ thermometer in there. I pulled the guage and the wiring and sensor and hooked it all up. I have the (+) from the guage going to the (+) side of battery; the (-) side of guage goes to (-) side of battery and the "source" at the guage goes to the temp sensor, which is suspended in a pan of water. Seems cool right? The guage won't move at all. Is there something I don't know? I've checked voltages and I have 12.7v at the (+) side of the guage using the (-) side of the guage as the ground, so I know the connections SHOULD be good. What gives?
Testing AZ temp guage in pan of water...help
- Thread starter TheUser
- Start date
Some senders use the block as ground. This is true of all senders that only connect 1 wire to the sender. if yours only has 1 wire to the sender, you need to connect a wire from - (negitive) post on the battery to the metal part of the sender housing.
right on the money, jrichker...thanks 
The guage was about 10* too high up until about 210*, then it was pretty much accurate. The water only went to 220* before I shut it down due to time restraints. I kinda wish it was wrong lol. 220* should be sufficient since the car SHOULDN'T get that hot anyway...unfortunately it does. I'm gonna try it out one more time and post questions after that.
The guage was about 10* too high up until about 210*, then it was pretty much accurate. The water only went to 220* before I shut it down due to time restraints. I kinda wish it was wrong lol. 220* should be sufficient since the car SHOULDN'T get that hot anyway...unfortunately it does. I'm gonna try it out one more time and post questions after that.Similar threads
