JeepForum.com

JeepForum.com (http://www.jeepforum.com/forum/)
-   YJ Wrangler Technical Forum (http://www.jeepforum.com/forum/f12/)
-   -   temp gauge (http://www.jeepforum.com/forum/f12/temp-gauge-1561199/)

Tyler980 08-12-2013 08:42 AM

temp gauge
 
My 88 yj temp gauge used to work... now it doesn't. Any ideas what I could do to get it back?

Randonexplosion 08-12-2013 11:52 AM

Check the connection at the coolant temp sensor. If that is ok, replace the sensor and/or trace the wiring back as far as possible and look for breaks. It should be a single wire.

Tyler980 08-12-2013 12:11 PM

Its the one that sits closer to firewall behind the carb correct?

Randonexplosion 08-12-2013 12:21 PM

Yep, right next to the valve cover.

Tyler980 08-13-2013 10:38 AM

It looks okay

Que89YJ 08-13-2013 10:44 AM

With the wire disconnected from the sensor it should be max hot. Disconnect the wire and ground it to the block and it should go max cold. If it does those then the sensor is bad. If it doesn't then the wire or guage is bad.

Tyler980 08-13-2013 10:57 AM

Okay thank you. I will try that when I get home.

Tyler980 08-13-2013 11:47 AM

Pulled it off and no change.

XJ93 08-13-2013 02:35 PM

Pulled it off, did you ground it? Stick a machine screw in the end of it and touch the screw head to the block and look at the gauge.

Tyler980 08-13-2013 04:42 PM

Ah I didn't I will try that thank you

Mean Max 08-14-2013 07:40 PM

Quote:

Originally Posted by Que89YJ (Post 15789311)
With the wire disconnected from the sensor it should be max hot. Disconnect the wire and ground it to the block and it should go max cold. If it does those then the sensor is bad. If it doesn't then the wire or guage is bad.

Backwards.

Pull wire off = full cold

Ground wire = full hot

The temp sensor is a "TURD" sensor.

Temperature Up Resistance Down

Max :cheers2:

Tyler980 08-14-2013 07:47 PM

I pulled the wire off and used a machine screw and grounded it and the gauge still did nothing.

Randonexplosion 08-14-2013 08:07 PM

Then I'd say you have an interruption in the wire or a bad gauge. Happy hunting :cheers2:

Maybe you can try to pull the gauge and see of there is any corrosion on it.

Tyler980 08-14-2013 08:18 PM

I'm not really sure how to pull the gauge out.

Randonexplosion 08-14-2013 08:23 PM

There are a few upper and lower screws on the panel that covers the gauge. After that just a few more screws and it should come out.


The time now is 03:45 AM.

Powered by vBulletin Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.