Where is the location of the PCM,BCM,GEM on a 2002 Mercury Cougar V6 automatic an how to change em out?

SOURCE: water pump location on the 2.5L V6 engine 1999 cougar

It is located on top of the engine under the throttle body, it sucks, plan on a whole day if you are a good machanic.

SOURCE: question about buying a car

http://consumerguideauto.howstuffworks.com/1999-to-2002-mercury-cougar.htm

http://www.edmunds.com/mercury/cougar/review.html

http://www.carsurvey.org/reviews/mercury/cougar/2002/

Some websites to read up on it

Robert

SOURCE: vehicle speed sensor

You will have to get to it probably from under the car it will be located just to the right of the driver's side axle

SOURCE: o2 sensors on a 99 mercury cougar v6

I just got done replacing the O2 sensors in my 99 Cougar due to throwing a P0135 malfunction code. There's 3. Facing the engine there's one in the front coming off of the front header, which is easy to get to. Another more tricky one if between the engine and the fire wall on the rear header pipe. The third is under the vehicle behind the transmission pan on top of the exhaust. In order to replace the O2 sensor near the fire wall you will need to remove the 4 retaining bolts for the ECM module and move it out of the way. Additionally you will need to remove the 2 retaining nuts for a wiring harness that is seated below the ECM module. Pay close attention to the connectors because the front and under vehicle O2 sensors have round connectors the one near the firewall has a squared connector. I was able to replace all 3 by myself in approximately 35 minutes. If your throwing a O2 heater malfunction code it is most likely going to be the sensor near the firewall. make sure that you know someone with a code reader so the code can be cleared. If you're do for an emmissions inspection be sure to put at least 40 miles on the new O2 sensor with different types of driving (e.g. highway, coasting, decellerated turns and rapid acceleration). Gotta love project cars for your kids!!

SOURCE: Turn signal stopped working 1990 Mercury Cougar

I had the same problem and the flasher is not located in the fuse box because it is not a normal flasher. the cougar has an electronic flasher unit that is located on the left side of the center console. the best and cheapest place to order a new one is amazon.com. they run about $30-$40