1968 Temp gauge doesnt work HELP!

[Batgirl89]

needle on C. Doesnt move when I start car. With test light I have a "PULSE" at the nipple on manifold.

what do I do next?

 

[franklinair]

With the Key in Acc or Run position, ground the wire at the temp sensor. If the Temp gage pegs out (HOT) the gage & wiring to it is OK. Let us know results. If no good we'll go to step 2.

Neil

 

[Batgirl89]

Will do. Thanks!!

 

[Batgirl89]

Pegs the H when grounded

 

[Ruppstang]

You need to replace the sender.

 

[Batgirl89]

Great! Easier than a gauge! Thanks you guys!! You're the best. Always helping me so much

 

[franklinair]

When you install the new sensor DO NOT try to seal the threads with teflon or sealant. The metal-to-metal contact is what makes the Ground for the sensor.

Neil

 

[Batgirl89]

oh ok. Thank you! my first time changing one of these

 

[Ruppstang]

Another tipis to drain off a half a gallon or so of the antifreeze. That will save a big mess when pulling the sender unless you are really fast. I tried it once put my thumb over the hole and then dropped the new sender. Well you know what happened then.
Good luck Marty

 

[Mosesatm]

When the engine is cold!!!

 

[Batgirl89]

and I thought this would be fast and easy! thanks for the heads up!!