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73-87 Chevy _ GMC Trucks => Interior & Equipment => Topic started by: Skunksmash on July 14, 2011, 11:32:18 pm

Title: Ever wired up an electric gauge?
Post by: Skunksmash on July 14, 2011, 11:32:18 pm

Hi all. I recently bought a digital water temp gauge. My factory gauge sucked too much. It would say the truck was running at 155 when my code reader would say it was running at 183. I blame it on a factory gauge that probably wasn't great back in 1987. Let alone now. So anyway, where do I tie into for power? Just any old hot wire? Or do I need to run this all the way to the battery? I'm kind new at wiring up my own stuff.

Title: Re: Ever wired up an electric gauge?
Post by: Bitzer! on July 15, 2011, 03:33:56 am

 Hi bud, I'd run the feed from the temp sender to gauge, power feed from ignition so any live when the key is on click one and then earth/ground it

Pretty basic really 

Title: Re: Ever wired up an electric gauge?
Post by: beastie_3 on July 18, 2011, 07:03:45 pm

yup.

Title: Re: Ever wired up an electric gauge?
Post by: Skunksmash on July 25, 2011, 03:48:44 am

Probly a dumb question, but is there any need to run the new sensor and wire? Is there any reason I shouldn't just use the old one? I replaced that actual sensor itself a year ago.

Title: Re: Ever wired up an electric gauge?
Post by: 1979C20 on July 25, 2011, 04:12:29 am

Most of the time the sensor/sending unit is what goes bad. Ive had to replace my Mechanical temp gauge 3 times already because of the sending unit going out and it not showing the temp.