Temperature Gauge
11-13-2013, 07:14 PM
#1
Thread Starter
Join Date: Nov 2013
Location: North carolina
Posts: 23
Temperature Gauge
Just purchased a 1989 GT and I have a quick question about the temperature gauge. All of the gauges on the dash work correctly except for the temperature gauge. I was wondering if anyone had some advice on what I should look for to fix it. Thanks in advance.
11-14-2013, 08:40 AM
#4
4th Gear Member
Join Date: Aug 2008
Location: Panama City, FL
Posts: 1,214
You just need to track down the system and see what is failing. Could be the gauge or wiring. Locate the temp sensor on the engine and see if it is hooked up. Hopefully the computer is still reading the engine temp so the air/fuel will.be adjusted properly.
11-14-2013, 09:14 AM
#5
5th Gear Member
Join Date: Jul 2012
Location: ohio
Posts: 3,628
OP the sending unit for the gauge is on the drivers side front of the lower intake. It will have 1 wire attached to it.
This one
The other one is the ect on the passenger side , and is what tells the ecm what the coolant temp is.
11-14-2013, 12:31 PM
#6
Thread Starter
Join Date: Nov 2013
Location: North carolina
Posts: 23
Thanks for the info. The dash gauge sensor is attached by one red/white wire. I was told that if I ground the wire and turn the car on, the gauge should shoot all the way up if it is working. If not then there is a wiring or problem with the dash gauge itself. If the sensor does go all the way up then there is an issue with the sensor itself and that needs to be replaced.
I haven't checked the ECT sensor yet. I will do that first thing when i get home this afternoon. I want to make sure that is attached. Is there any way to determine if that sensor is working properly? From what i have read, it is very important.
I haven't checked the ECT sensor yet. I will do that first thing when i get home this afternoon. I want to make sure that is attached. Is there any way to determine if that sensor is working properly? From what i have read, it is very important.
11-14-2013, 12:59 PM
#7
5th Gear Member
Join Date: Jul 2012
Location: ohio
Posts: 3,628
Thanks for the info. The dash gauge sensor is attached by one red/white wire. I was told that if I ground the wire and turn the car on, the gauge should shoot all the way up if it is working. If not then there is a wiring or problem with the dash gauge itself. If the sensor does go all the way up then there is an issue with the sensor itself and that needs to be replaced.
I haven't checked the ECT sensor yet. I will do that first thing when i get home this afternoon. I want to make sure that is attached. Is there any way to determine if that sensor is working properly? From what i have read, it is very important.
I haven't checked the ECT sensor yet. I will do that first thing when i get home this afternoon. I want to make sure that is attached. Is there any way to determine if that sensor is working properly? From what i have read, it is very important.
11-16-2013, 08:09 PM
#8
Thread Starter
Join Date: Nov 2013
Location: North carolina
Posts: 23
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