Temp Gauge - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-22-2011, 12:03 PM   #1
Join Date: Jan 2011
Posts: 18
Temp Gauge

I have a 89 with the 4.2 engine. I have been trying to figure out how to fix the temp gauge and I now have a couple of questions.
When you look up the parts online, you get a coolant temp sending unit that screws into what I think is the thermostat housing. This screws in and has two wires coming out with a connector. You also have the other temp sensor that is smaller and goes closer to the fire wall, it has only one wire going to it. I have both of these. I tried grounding the smaller sender wire to see if the gauge moves and nothing happens. But I also checked the other sending unit with the 2 wires and neither side has power going to it. Before I assume that the gauge is bad, shouldn't the 2 wire sending unit (which I think has to do with the computer, but I could be wrong?) have power going to at least one side? Is there maybe a relay controling all this? I am just out of ideas what to try next. Any thought would be appreciated.

almeida944s2 is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel gauge and temp gauge not working? BrandonG TJ General Discussion Forum 4 12-10-2010 09:44 PM
temp gauge not working?? Cheech66 TJ Tech Forum 0 04-28-2010 12:47 PM
temp gauge not working wrangler44 YJ Tech Forum 6 06-03-2009 05:54 AM
Auto Tranny Oil Temp Gauge ???s nicolas-eric TJ Tech Forum 20 02-15-2008 12:47 PM

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 05:10 PM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC