73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Interior & Equipment => Instrumentation => Topic started by: benracing123 on December 01, 2022, 10:39:21 PM

Title: Engine temp goes up significantly when lights turned on
Post by: benracing123 on December 01, 2022, 10:39:21 PM

Hey guys thought I’d bring it to the forums because I’m stumped, I have a digital dash kit that’s been in for some time now and recently when I turn the lights on in the truck the temp will go from 195-220 within 10 seconds I don’t know if I should even think to trust the guage or of my thermostat is fried. If anyone knows anything like this please help


Sent from my iPhone using Tapatalk

Title: Re: Engine temp goes up significantly when lights turned on
Post by: VileZambonie on December 02, 2022, 08:59:23 AM

What gauges are you running? Sounds like you have a poor gauge/body ground.

Title: Re: Engine temp goes up significantly when lights turned on
Post by: benracing123 on December 02, 2022, 09:45:35 AM

They are the intelirronix guages but I have them all grounded to the motor


Sent from my iPhone using Tapatalk

Title: Re: Engine temp goes up significantly when lights turned on
Post by: VileZambonie on December 02, 2022, 11:50:31 AM

The intellitronix gauges are crap and depending on what ones you got, they have major issues. Nevertheless, make sure nothing is touching and check all connections.

Title: Re: Engine temp goes up significantly when lights turned on
Post by: JohnnyPopper on December 02, 2022, 06:02:36 PM

Pretty sure it's electric. Tstats are mechanical.

Does it stay pegged at 220? Or does it fluctuate?

Title: Re: Engine temp goes up significantly when lights turned on
Post by: benracing123 on January 27, 2023, 11:09:57 AM

Figured it out it is actually a bad ground one of the wires was colored incorrectly


Sent from my iPhone using Tapatalk