Electrical Problem
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,021
Likes: 84
From: Florida
Electrical Problem
Hi Guys,Sent my gauge cluster out for total rebuild on the 63.Put it back together and now the temp gauge gets peged all the way to the right in the 240 zone when i turn the ignition on and when it is started.The conection whent on the same way it came off,anysugestions.Thanks Bob W
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Pegged to full hot says the wire from the sender to the gauge is shorted to ground somewhere (pinched?), or the sender has failed. Put an ohmmeter from the center terminal on the sender to ground at room temperature and it should show around 600 ohms; if it shows zero, the sender has failed. 
Race Director
Joined: Oct 2005
Posts: 12,468
Likes: 1,548
From: Camp Verde AZ
C1 of Year Finalist (performance mods) 2019
2017 C1 of Year Finalist
As far as the original question, either your sender is bad (not likely), your sender wire is grounding between teh gauge and sender now due to jostling the wires under the dash, or the gauge pin it self is grounding to teh cluster housing.
remove the sender to gauge wire from the gauge pin and see what it does.
Doug
Doug
