Question about 2004 Lincoln Town Car
The ground wire that is connected to the stereo is to be attached to a common ground or to the frame.
Posted on Apr 01, 2015
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Posted on Jan 02, 2017
SOURCE: 2004 Lincoln Town Car
As in most electrical problems, it would be required to do a bit of tracing/diagnosis to determine which is at fault. Most automotive horn system works on the same basic design. A switch in the steering wheel that energizes the horn relay that in turn powers the horn(s). A self activating horn could be caused by:
1: intermittent short in the steering wheel horn button;
2. intermittent shorting out horn relay;
3. intermittent short in the wiring.
Basing on the above possibilities, diagnostic/corrective action would involve:
a. tapping on the steering wheel (not the horn button) to see if jarring it would activate the horn, if yes then the problem is with the horn switch and often cleaning the inside/contact points of the switch should be corrective;
b. tapping the horn relay with the handle of a screwdriver to determine if jarring it would activate the horn, if yes then the problem is with the horn relay which of course would need replacement;
c. the wiring would be a bit more complicated if not time consuming. It would be necessary to wiggle the wires coming from the steering wheel/column to the main harness, to the fuse/relay bank finally to the horn to check at which point the trouble would resurface. Taping any exposed/bare/scraped wire would be corrective. It should be noted that the steering horn switch often would be "to ground" meaning the horn switch is switching the horn relay by providing the negative path, the relay is constantly supplied with B+12.
There are some instances that the horn could also activated by an alarm system.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
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Posted on Jul 02, 2008
SOURCE: I need a wiring diagram
Good luck on the Limo part. Ford didnot build the limo part and there a numerous manufacturers that did. I doubt they will be able to assist you with a car that old. Find the build tagfor the builder and contact them if they are still around.
Posted on Nov 28, 2008
Those Lincolns are notorious for that,I'd just get a set of coil springs out of a Crown Victoria cop car(junk yard)and swap them out.Done it many times,you can do it in about an hour,and they'll never leak down again.By the way,there's some O-rings in that system.Make some soapy water and spray every connection,just maybe you'll get lucky.
Posted on Nov 10, 2009
the enginr oil pressure switch runs the fuel pump till the oil pressure is up to the normal operating range. When the pressure is up the relay kicks in and takes over the power to the pump. The oil pressure switch my be at fault if you can no hear the pump running when you turn the key on
Posted on Jan 31, 2010
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----------This will help.Thanks.
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