Where is the iac on a 2002 ford escape 4 cylinder

It would be on the intake

I would have it scanned and check what cylinders are still misfiring. I would change the ignition coil for that cylinder and see if that fixes the
problem. If the misfire is still there...the PCM will likely need replacement.

Bank 1 is located right after the catalytic converter, and it hosts cylinder numbers 1 - 3 - 5 - 9, whereas Bank 2 is on the other side, and it holds cylinder numbers 2 - 4 - 6 - 8.

Yes the 4 cylinder 2.0L engine uses a timing belt to turn the cam. According to the Ford Scheduled maintance guide for your year and engine, the belt needs to be changed at 120,000 miles.

On 4 cylinder engines: The oil pressure sending unit is located in the rear of the block near the oil filter housing
On 6 cylinder engines: Sending unit is located near the oil filter housing behind the air conditioning compressor, on the front side of the block

Middle cylinder on firewall side of engine. Front is 1-3-5, firewall side is 2-4-6 from front of engine.

The IAC vavle is located behind the EGR valve on the driver side of the motor. You will disconnect 2 hoses and unplug the wire harness from the system. The unit will come right out. Just make sure that the hoses you take off go back in the same place. Also make sure that you have the negative battery wire disconnected. I had this same issue on my 2001 Escape, had to replace both the EGR and IAC so check both carefully.

If it's not idling and has problems starting, it's probably the IAC motor. It's located on the throttle body. Follow the airfilter box all the way to the engine, where the rubber flex hose attaches. The throttle body should be the first aluminum part you come to. Attached to the side you'll find small little aluminum part with a small wire harness attached. Unplug it, take the IAC motor off and clean inside with carb cleaner. This should fix the problem with the idle.

V6 1-4-2-5-3-6 back bank pasenger side right to left cylinders 1 2 3
front bank passenger side right to left 4-5-6
4 cly 1-3-4-2

when looking at motor from front ......4-5-6 are front of motor...1-2-3 on back of motor by fire wall ....#5 is center plug on front of engine