Adapting 81+ Temp Sensor to 79 Gauge? - JeepForum.com
 
LinkBack Thread Tools
post #1 of 5 Old 08-14-2009, 03:00 PM Thread Starter
attworth
Registered User
1979 CJ7 
 
Join Date: Jun 2009
Location: West of Topeka
Posts: 398
Adapting 81+ Temp Sensor to 79 Gauge?

I'm using 81+ exhaust and intake manifolds on my 79 258. The later ones are coolant heated. I'm wondering how to run the coolant temp sensor. Here's a picture.



It has two wires, whereas the original sensor for the motor had a single wire. Unless this isn't what I think it is - in which case, what is it?

There is another fitting that looks similar to my original temp sensor which is on the back of the intake.

Thanks!

attworth is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 08-14-2009, 03:15 PM
CSP
Registered User
 
Join Date: Aug 2002
Location: Colorado
Posts: 15,252
Why aren't you using the original temp sensor?

You shouldn't have to change a thing in regards to the temp sensor just because the newer manifolds are used.

The switch in your picture is the one that is used by the computer to tell the computer controlled BBD carb to go to closed loop. It isn't used for the temp gauge.
http://home.sprynet.com/~dale02/coolant.htm


The other sensor you're seeing is probably the one that controls the electric manifold heater.

http://home.sprynet.com/~dale02/manifold.htm
CSP is offline  
post #3 of 5 Old 08-14-2009, 03:21 PM
xeroOTG
Registered User
1998 XJ Cherokee 
 
Join Date: Nov 2008
Location: Bellevue
Posts: 192
If its a temp sensor, one is a ground, the other signal. On GM style sensors, yellow is signal, black is ground. It does look like a temp sensor to me, but im not 100%.

My jeep gives a whole new meaning to the phrase, Just Empties Every Pocket!

1975 Jeep CJ5 258 TBI EFI, T-18, D-20, D44 rear, 4.11.
1992 Jeep Cherokee 4.0L, AW4, NP231 October 2009 - August 2012
1998 Jeep Cherokee 4.0L, AX15, NP231 - August 2012
xeroOTG is offline  
post #4 of 5 Old 08-14-2009, 04:23 PM
OMR
Registered User
1986 CJ7 
 
Join Date: Mar 2008
Location: Nor-Cal
Posts: 108
The temp sensor for the gauge is on the back corner (drivers side) of the head.

The other two sensors are as CSP said -

Mark

'86 CJ7 - 258 - Howell - 'Rushed' - 2.5" sl, 1" bl - T5 - d44 rear - 33 x 12.5
OMR is offline  
post #5 of 5 Old 08-14-2009, 04:47 PM Thread Starter
attworth
Registered User
1979 CJ7 
 
Join Date: Jun 2009
Location: West of Topeka
Posts: 398
Thank you, that's kind of what I was thinking but wanted to make sure.
attworth is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Temp gauge and fuel gauge quit Foulplay Jeep CJ Forum 11 11-09-2012 09:43 AM
TEMP GAUGE, FUEL GAUGE, AND SPEEDO HELP PlEASE cgi2099 Jeep CJ Forum 8 11-03-2009 05:49 PM
coolant temp sensor and gauge question caleb7mm Jeep CJ Forum 2 05-06-2009 04:28 PM
Speedo, Fuel Gauge and Temp gauge not working KYCJ7 Jeep CJ Forum 1 07-07-2008 12:41 PM
Fuel gauge, temp gauge HEADSPACEXXX Jeep CJ Forum 5 04-03-2008 05:26 AM

Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome