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Old 05-20-2009, 12:59 PM   #4 (permalink)
Deezler
Master EcoModder
 
Join Date: Apr 2008
Location: Michigan
Posts: 261

Bio Deezler (sold) - '03 Volkswagen Jetta GLS TDI
90 day: 50.78 mpg (US)

The Beast. - '03 GMC Sierra 2500HD SLT
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Yeah I gotta do this too, as the weather heats up and coolant temps become critical.

Without high-jacking the thread, is the basic premise that you just squeeze an extra wire or pin into the 87 terminal on the coolant fan relays? Extra power draw of an LED is negligible I suppose. Should one fuse the newly tapped wire in case of a short?
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