constant power fuse - The 1947 - Present Chevrolet & GMC Truck Message Board Network

matthufham · 04-01-2006, 11:11 PM

is there one on the fuse block? i need power with key on acc, off, and run for my radio to keep the memory (clock and pre-sets).

or should i run a wire to the battery with a 20 amp inline fuse?

Karl Hoh · 04-02-2006, 01:02 AM

I don't think these trucks had a takeoff in the fuse box for constant power. The only power out with the key in the acc/off/run positions is lights, cig lighter & 4way flasher? Why not tee in to the cig lighter power?

dwaite72lnghrn · 04-02-2006, 01:05 AM

I pretty sure the cigar lighter tap on the fuse block is hot all times. the other point would be at the top of the block just below the fuel gauge tap, it should have a pigtail connected to it.

matthufham · 04-02-2006, 01:35 PM

hmm, you guys were right, the cigarette lighter and the plug under the fuel gauge have constant power. thanks i got it all figured out now.

Bob Moore · 04-02-2006, 08:14 PM

Matt - Does that stay hot during crank? It MAY shut off during the starter cranking mode. Just check before you go too far.

matthufham · 04-02-2006, 10:48 PM

Quote:

Originally Posted by Bob Moore

Matt - Does that stay hot during crank? It MAY shut off during the starter cranking mode. Just check before you go too far.

no sir i will not be checking that soon. i don't want to kill the engine, never been fired. it has no oil pressure, just sitting there all pretty until the truck gets painted, also no gas tank until then. i guess i could disconnect the starter, but it's tricky and i'll leave it for now.

04-01-2006, 11:11 PM	#1
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	constant power fuse is there one on the fuse block? i need power with key on acc, off, and run for my radio to keep the memory (clock and pre-sets). or should i run a wire to the battery with a 20 amp inline fuse?

04-02-2006, 01:02 AM	#2
Karl Hoh A little east of nowhere Join Date: Feb 2006 Location: LaBroquerie,Manitoba Canada Posts: 168	Re: constant power fuse I don't think these trucks had a takeoff in the fuse box for constant power. The only power out with the key in the acc/off/run positions is lights, cig lighter & 4way flasher? Why not tee in to the cig lighter power? __________________ 68 C10 250 4spd 69 C20 327 4spd 69 910 250 3spd 80 K10 350 4spd 76 C60 366 5spd school bus "THERE'S NOTHING YOU CAN BREAK THAT SOMEONE CAN'T BE PAID TO REPAIR"

04-02-2006, 01:05 AM	#3
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Re: constant power fuse I pretty sure the cigar lighter tap on the fuse block is hot all times. the other point would be at the top of the block just below the fuel gauge tap, it should have a pigtail connected to it. __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne

04-02-2006, 01:35 PM	#4
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: constant power fuse hmm, you guys were right, the cigarette lighter and the plug under the fuel gauge have constant power. thanks i got it all figured out now.

04-02-2006, 08:14 PM	#5
Bob Moore Registered User Join Date: Feb 2004 Location: Tacoma WA Posts: 1,365	Re: constant power fuse Matt - Does that stay hot during crank? It MAY shut off during the starter cranking mode. Just check before you go too far. __________________ 67 C-20 LWB, tilt, speed alert, vac, 454, T400 67 C-10 SWB, factory air with more to follow

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