key to off, still running after installing electric fan

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Aug 30, 2015 | 06:44 PM

Straydawg

Thread Starter

Junior Member

Joined: Jul 2015

Posts: 40

Likes: 0

Model: Cherokee

key to off, still running after installing electric fan

Ok I installed a new 14 inch electric fan. Ground wire to negative on battery. Hot wire, I put an inline 15 amp fuse and cut a spade terminal in half and ran to ignition fuse on fuse box. Jeep started fine, fan runs fine. Keyed off engine kept running til I jiggled the key around.. unplugged spade from fuse box. Jeep starts and shuts off fine. So I spliced into an ignition on wire. Again jeep starts fine but doesn't shut off immediately??
Any suggestions appreciated
Thanks

Aug 30, 2015 | 07:37 PM

BlueRidgeMark

CF Veteran

Joined: May 2012

Posts: 7,965

Likes: 964

From: Lost in the wilds of Virginia

Year: 1998 Classic (I'll get it running soon....) and 02 Grand

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Straydawg

Ok I installed a new 14 inch electric fan. Ground wire to negative on battery. Hot wire, I put an inline 15 amp fuse and cut a spade terminal in half and ran to ignition fuse on fuse box.

Stop.

That's a garbage installation. Sorry, but it is.

NEVER run an accessory that takes more than about 5 amps from the fuse box. Use a relay, and trigger the relay from the fuse box so the device gets its main current from the battery through the relay.

You might have fried something in the fuse box, or maybe you picked a location that's always hot.