Question about 1999 Mercury Cougar

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1999 mercury cougar only blows cold air, no heat.

1999 mercury cougar

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  • Anonymous Mar 28, 2014

    how to replace a flasher for a 1999 mercury cougar?

  • Anonymous Mar 31, 2014

    2002 mercury cougar has black smoke blowing out of the tail pipe some times on start up and when accelerating hard in pak

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If the car is overheating the thermostat is stuck closed if the car is not overheating the heater control valve may need to be replaced

Posted on Dec 17, 2008

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It's very common in the Cougar, Hate to say it, but I think you know the answer. You need a new Heate Core, PS, Their a B#$%#.

Posted on Dec 12, 2008

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1 Answer

Car over heating


low coolant, need a new thermostat, air in the cooling system, blown head gasket

Mar 16, 2013 | 1999 Mercury Cougar

1 Answer

HEATER IN MERCURY SABLE ONLY BLOWS COLD AIR GOT THE AIR CONDICTION FIX NOW NO HEAT


Two things.........either it's a bad blender motor,or more likely,plugged heater core..Remove heater hose from near thermostat and heater hose from water pump,and flush from water pump side heater hose back thru the heater core and out the thermostat side heater hose with a pistol grip type water nozzle. don-ohio

Nov 05, 2011 | 1999 Mercury Cougar

1 Answer

1999 mercury cougar transmission problem i dont understand


This is being caused by the seals in the transmission worn out and the heat is causing them to become to plyable thus losing pressure, an overhual is needed

Mar 17, 2010 | 1999 Mercury Cougar

1 Answer

Trouble with the heating system on a 1999 mercury cougar


Replace your thermostat....often they simply get weak and work when they feel like it.

Dec 31, 2009 | 1999 Mercury Cougar

1 Answer

My 1999 cougars heater is blowing out cold air. it blows out warm air on setting one but when i put it on 2 or 3 or 4 its cold i am going to get my anti freeze flushed this week and see what happens but i...


Check the thermostat in the cooling circuit for the heat problem; it could be stuck. As for the O2 sensor.....Check the thermostat first. Its cheaper.

Dec 02, 2009 | 1999 Mercury Cougar

1 Answer

Low Heat on 1999 Mercury Cougar


I had the same problem with my 199 cougar 2.0 4 cyl.
The problem was air in the cooling system.

I had to bleed the air out of the system, and now the heat
works much better.

I put a flushing tee between the back of the thermostat and
the heater core, and made sure that water flowed out of there.
Then I disconnected the small hose from the top of the coolant
resevoir, and poured water into it using a funnel until the coolant
level started to rise in the coolant resevoir. Then started the car, left the radiator cap off, and let it come up to temperature (thermostat open)
then over a period of about 5 minutes, periodically "goosed" the engine to clear any remaining air bubbles.

The heat is MUCH better now.

Oct 17, 2009 | 1999 Mercury Cougar

2 Answers

No cold air coming from air conditioner on 99 cougar


Air conditioner will not work if low on r-134a coolant. System has to have pressure. You can charge it yourself by buy a air conditioner refill kit at any auto parts store. If you don't know how to do it sometimes they will do if for you if you ask.

Mar 26, 2009 | 1999 Mercury Cougar

2 Answers

My 99 cougar only blows cold air the hoses are hot,


maybe your thermostat is stuck open, you may need a new thermostat.

Dec 05, 2008 | 1999 Mercury Cougar

1 Answer

Heater not blowing hot air


If the fan motor is blowingthen this is a sign that the fuse is good, if it's not then check the fuse, or you may need a new fan. as for not blowing heat it could be that the gate valve in the heater lines is stuc closed for some reason, or you could need a new thermostat. as for fuse slots 5 & 6 I am not really sure for your car as I would need to see the fuse panel and what accessories you have. Good luck and remember to rate all the solutions you get, thanx.

Oct 29, 2008 | 1999 Mercury Cougar

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