Cruise swap Q's Help

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Jan 4, 2012 | 02:44 PM

autoxbird

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Cruise swap Q's Help

Swapping cruise into my '91 250 Custom w/460, got all(?) the cruise stuff from a '91 XLT w/351. Got everything in, but when hitting the on button, the horn honks. Did I miss something or do something wrong? Help!

Jan 4, 2012 | 03:07 PM

SCRebel

Fleet Mechanic

Joined: Jun 2011

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From: Conway, South Carolina

Kinda sounds like you might have a wire in the wrong place, or something.

Jan 4, 2012 | 03:12 PM

mpc07005

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From: Milford, CT

When you press the horn button, does cruise work? Is this a wheel controlled cc or dash? Sounds like a wiring mixup.
-Mike

Jan 4, 2012 | 03:56 PM

autoxbird

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It's wheel controlled, the factory system. Is there anything different in the column between a non cruise and cruise truck. The donor truck also had a tilt column, where mine is a non tilt

Jan 4, 2012 | 04:02 PM

mpc07005

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From: Milford, CT

If I'm remembering right all CC trucks had tilt. So I assume you changed the wheel over to get the buttons. The harnesses are not plug and play (apparently).
-Mike

Jan 4, 2012 | 04:08 PM

autoxbird

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I just took the pad. I'm not able to test if it's working as the cable to the TB is too short, the 351 must be shorter than the 460

Jan 4, 2012 | 07:28 PM

autoxbird

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Looked at a wiring diagram, I'm pretty sure I see what I missed. There's a signal amplifier that I believe I missed. Back to the 'yard

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Jan 5, 2012 | 12:42 PM

F150xlt

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Joined: Jan 2002

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From: Baltimore

Quote:

Originally Posted by autoxbird

The turn signal/hazard switch assembly is different between a tilt and non tilt
column. The horn wiring is different because in a tilt column when
you activate the horn button, it grounds the horn relay which closes
and provides 12 volts to the horns.

With a non tilt wheel there is no horn relay. When you activate the
horn button, 12 volts goes direct to the horns.

Also you need a Vehicle Speed Sensor. It's driven by the speedometer cable.