temp gage starts reading 1/2 of the way - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Apr 27th, 02, 10:42 AM Thread Starter
Tech Team
Join Date: Apr 2002
Location: tigard oregon usa
Posts: 35
i just purchased a 68 z28 numbers matching car. i noticed the temp gage is always reading on the hot side even when the engine never over heats.when warm it reads one line from over heating,in the red. is this normal or maybe the wrong sending unit? or resistor behind gage needs to be changed?i have the 4 gage cluster by the shifter.i would like to know how other peoples gages act.
68 rs z28 is offline  
Sponsored Links
post #2 of 4 (permalink) Old Apr 27th, 02, 01:54 PM
Senior Tech
Join Date: Feb 2000
Location: McKinney, Tx
Posts: 3,557
If it starts at halfway and moves over to hot when it's actually just warm, then the needle just needs adjusted. As long as you are sure it's not overheating, you should be able to get it into the ballpark. You can either try to gently "push" it to the left when the car is cold, preferably all the way to the left, or else remove the needle and realign it to far left when it's cold. Taking the needle off may be tricky, mine was able to move a little without pulling it completely off.

John D. Smith
69 SS/396 CLONE!
The Texas Tornado lives!

North Texas Camaro Club

Hobbystage Free Picture Posting!!! http://hobbystage.net/camaro/69ss396/
kz1000ltd is offline  
post #3 of 4 (permalink) Old May 1st, 02, 03:32 AM
Senior Tech
Join Date: Mar 2000
Location: Dtown PA
Posts: 820
yup. only part is its a pain in the rear to get to the dial to move it. if its a aftermarket guage, just replace it.

Chris's 67 RS/SS,can be seen at http://www.67rs.com
check out another site once in a while! http://www.fbodyconnection.com
Chris Edwards is offline  
post #4 of 4 (permalink) Old May 1st, 02, 02:50 PM
Team Member
JohnZ's Avatar
Join Date: Sep 2000
Location: Washington, Michigan USA
Posts: 7,728
Have a shop that has an I.R. gun "shoot" the thermostat housing and compare that actual reading with what you see on the gauge at the same time so you know what you're seeing on the gauge. The sending unit is probably going south. The best replacement is the Wells TU-5 that AutoZone sells ($6.00) - closest to the original AC production sender calibration. If you replace the sending unit, DO NOT use any thread sealant on it - the sender depends on a good ground to the engine in order to work properly.

'69 Z28 Fathom Green
JohnZ is offline  
Sponsored Links

Quick Reply

Register Now

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

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


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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 On
Pingbacks are On
Refbacks are On

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