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If it's a cheap aftermarket alarm, check for a red wire coming off the hot side of your battery with an inline fuse. If it's not, try to locate the alarm "computer" under the driver's side dash or nearby your fuse panel. You'll find a black box with a wiring diagram glued to the side, normally strapped to a wiring harness or other fixed element. If this is the type of alarm you have, you'll need to trace each wire coming from the alarm computer and unclip each fastener that's clipped to your vehicle's factory wiring. The trouble with these types of alarms is that they can get power from a number of sources (stereo, interior lights, etc.). Good luck with this one!
Most of the 4.6 Litre engines have some form
of plastic cover, mine was held in place with two 11mm nuts at the front
and press-fit connection at the back. Remove this cover to gain access
to the spark plugs. You may need to disconnect the air hose going to the
throttle body and some additional vacuum hose connections. Mark them
with masking tape and numbers if you have any question about
re-attaching them correctly. Along each side of the intake manifold you
will see 4 round coils held in place with a 7mm bolt on each one. Remove
the 7mm bolts from each coil. Each of these coils has a connector that
will be disconnected by pinching the connector to release the catch and
pulling gently. Do not worry about marking them unless the wire harness
has been modified. The factory wire harness keeps the connectors next to
the correct coil.
Remove each coil and plug connector by gently turning the
unit to break the rubber loose from the manifold, then pulling up on the
coil/plug connector as a unit. Do not be alarmed if the rubber boot
cover comes off, you can easily reattach it to the coil. Once the coils
and rubber boots are removed, use your compressed air source or vacuum
to remove as much debris from around the spark plugs as possible.
Warning: Wear Eye Protection when using compressed air.
Remove the spark plugs using the 5/8" spark plug socket,
swivel, extension and ratchet. Some engine installations may require
additional extensions or swivels to get the back plugs removed. It
normally takes just an 1/8 turn to break the plugs loose and then about
4-6 full turns to fully remove the spark plugs. If the plug does not
come out with the socket, use the magnetic pickup tool to pull
the plug out. You will not be able to reach it with your fingers.
Using the feeler gauges gap your new spark plugs to the
correct gap for your vehicle. A typical
spark plug gap for this engine is .054 inch. With the plugs gapped, fit
the rubber fuel line to the top of a spark plug and then apply a small
dab of anti-seize compound to the plug threads. Work the anti-seize into
the threads a little bit and then insert the plug into the engine. The
rubber fuel line will prevent you from cross-threading the spark plug
and you should be able to turn the plug in about 3/4 turn or more
easily. If not, remove the plug and make sure that it has not picked up
any debris in the threads. If so, clear it out and try again. Once you
have all of the plugs started, use the 5/8" socket to tighten them just
1/8 turn past their stopping point. Do not over tighten as this is the
leading cause for plug-blowout with this engine series.
With all of the spark plugs back in, you can then proceed to
replace the coil/plug connectors. Replace the 7mm bolts for each coil
and tighten them snugly but do not over tighten. With the bolts tight,
the coil/plug connector should still rotate slightly. Reconnect the
electrical connectors for each coil by gently pushing them in place
until they click. They are indexed and will fit only in one direction. Reconnect
the air hose to the throttle body and any vacuum lines that were
removed. Replace the plastic engine cover and fasten it in place. That's
it, your done.
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2:55
See more on our website: https://fuse-box.info/mercury/mercury-mountaineer-2002-2005-fuses-and-relaysFuse box diagram (location and ...
YouTube · Fuse Box Info · Dec 30, 2018
The BCM sees it as a door opening and sets off the alarm
A bad door switch can malfunction ANY time. The alarm is looking for a door switch or hood switch opening. That's where you start--with an intermittent switch
Try resetting the alarm, using the instructions given at the link below. I'll also copy the text here.
Insert the ignition/door key in the door lock on the driver's- side door of your Mountaineer.
Turn the key to the lock position.
Turn your key to the unlock position.
Turn your key to the lock position.
Turn your key to the unlock position. Your alarm is now disabled. If your key fob works, you can also press the unlock or alarm-disable button on the fob.
Start the Mountaineer's engine and allow the vehicle to run for at least 10 minutes. This will allow the alarm to relearn the default settings. You must make sure that you have disabled the alarm first, however, before you attempt to start the vehicle, so that the alarm will reset itself.
If these instructions don't work, you can try resetting the car's computer by unplugging the battery for half an hour. However, that will reset the keyless entry code, as you can see in the fixya article I link to at the bottom
i can tell you that the towing package fuses are in the power distrubution box under the hood..best way is with test light check all fuses in that box.. let me know
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