Question about Mercury Cougar

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The 2 wires that run off the battery on the hot side,1 goes to the relay and the smaller wire goes were?? For a 1978 mercury cougar

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To the ignition feed via the distribution box but on older cars they often went straight to the ignition switch

Posted on May 28, 2011

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My fan on my 2001 mercury cougar won't come on at all. How can i test it to see if they are working or if i have a bad relay?

This is a partial fan wiring, I'm just trying to show the fuse and relays. That fuse circuit is hot all the time. not only check the fuse, check voltage on fuse circuit, hot all the time, use a test light.
Check for applicable trouble codes, Your coolant temp sensor is involved. On the load side of high-speed relay, the left side in picture, use proper size jumper wire, between the two terminals with relay unplugged, if the fuse is good, voltage, the fan/s should run? If they run, at least the fan motor is working and ground for the fan should be ok. If it runs with jumper, the problem is on control side of relay, either voltage or ground.
cougar fan-ila2g4cxpmlwwiapu5gp33ke-4-0.jpg

Feb 24, 2017 | Mercury Cars & Trucks

1 Answer

99 mercury cougar radio wiring diagram

1999 Mercury Cougar Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange/Black
Car Radio Accessory Switched 12v+ Wire: Yellow/Green
Car Radio Ground Wire: Black/Green
Car Stereo Dimmer Wire: White/Green
Left Front Speaker Positive Wire (+): White/Black
Left Front Speaker Negative Wire (-): Gray/Black
Right Front Speaker Positive Wire (+): White/Red
Right Front Speaker Negative Wire (-): Gray/Red
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): White/Purple
Left Rear Speaker Negative Wire (-): Gray/White
Right Rear Speaker Positive Wire (+): White
Right Rear Speaker Negative Wire (-): Gray

1999 Mercury Cougar Car Stereo Wiring Diagram ModifiedLife com

Feb 08, 2017 | Mercury Cougar Cars & Trucks

2 Answers

How to fix horn on 2001 mercury cougar

check for power to the horn relay , check the horn itself as they rust the diaphragm inside
check that the contact under the steering wheel is operational

Jul 24, 2015 | 2001 Mercury Cougar

1 Answer

2000 cougar running hot but fans are not kicking on

Check to see if the fans are connected to the wiring harness, if radiator was removed the shroud and fans had to be removed, are fan motors connected to wiring harness, are there any damaged wires at connectors, check the fans fuses at fuse box (Power Distribution Box) in the engine compartment (front right side)(push in on tab in front of box lift up then back to remove cover), Engine Cooling Fan Fuse, Yellow 60 amp, posistion #49, Check the Relays, Engine High Speed Cooling Fan, posistion #R8, Engine Cooling Fan, posistion #R9.

Aug 10, 2012 | 2000 Mercury Cougar

1 Answer

1996 Mercury Cougar 3.8 V6 ,,,The rediator fan is not coming on.

So can you jumper the relay to make the fan run?

The computer grounds the relay, so you can jumper the relay and the fan runs, check for a signal from the computer.

Jul 30, 2012 | Cars & Trucks

1 Answer

Collingfans won't come on after resistor was replaced,also ac pump won't come on, have power to the relays under the hood and when they are jumped can get power to ac unit but still no fans

on the cooling fan part, disconnect the wire harness and run 2 wires from the connector to the battery, ( 1 wire to the pos 1 to the neg) if that dont work, switch the wires at the battery (take the wire on the pos and switch with the neg) if the fan still dont come on , you have a bad motor on the fan. if it does work and your relays are good, i would say you have another electrical problem

Mar 03, 2011 | 1999 Mercury Cougar

5 Answers

Must be electrical problem

Suggest replacing the the switch for the headlights or the switch for the dimmer...doesn't sound like it's your charging system, but more like a switch. There are probably relays involved too, usually in the Fuse Box, that may be suspect.

Good luck,

Apr 08, 2010 | 2000 Mercury Cougar

2 Answers

Where can i find a new alternator wiring harness or (diagram to make one) for a 1985 mercury cougar that has a 5.0 engine. The local area parts/salvage dealers do not have this part.

My software won't let me link the diagram to the internet. So I will describe it to you. I'll use factory
color codes, so if you have any harness left you can
splice to it. On the regulator there's 4 terminals one
ot them is (A) from this a yell/wht wire that go's to a
fusable link then to the + battery side of the solenoid.
The (F) orng/ltblue wire go's to the field terminal on
the alternator.The S or stator wire (wht/blk) go's to
the Stator term on the alt. The I or ign. wire (ltgrn/wht)
go's to the alternator light. (or gauge) Next the B or
battery connection wire (blk/orng) from the alternator
go's to the fusable link, the same one that the yell/wht (A) wire went. Also there is a wht/blk wire
that runs from the stator term. on the alt. to the
choke heater. Hope this helps. Good luck.

Feb 14, 2010 | 1985 Mercury Cougar

1 Answer

1999 cougar turn key nothing

blown maxi fuse in engine fuse box. remove only one fuse at a time checking each one with an ohm meter

Aug 09, 2009 | 2002 Mercury Cougar

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