I know that Pats is a software program what I need to know is what all of that nature would I have to take out of the other 2002 Mercury Cougar V6 that I got for parts and put into mine to make it run

SOURCE: 94 mercury cougar wont run after 10 min

the fuel filter is either blocked or installed in the wrong direction.the rotor and distributor cap are fine. swop the fuel filter around and try again.

SOURCE: i need to know the

I do Believe that they are 225/65/15's Do you have the Original Tires now???? If so They have the Size right on the Tire. The Letters and Writing are in Black But, If you take a Piece of Chalk and Highlight the Writing you can read it better. The writting is right on the Side of the Tire.

SOURCE: tire sizes

Open the front drivers door... or the passenger side front door... there should be a sticker there indicating correct tire sizes as well as pressures.

Robert

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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: I need a vacuum diagram for a 1999 mercury cougar 2.5L V6

The correct diagram for your engine is located under the hood, Look on the radiator support, firewall, or sometimes on a valve cover...