I do know this is in the Grand Marquis section, but I cannot find anywhere else to help me with my car's problem.
Since October, my car has developed a problem in starting. It literally does not warm itself up and has no cold start. I have replaced both the idle control motor and coolant temperature sensor. The engine is a 3.8L V6 and it is CFI. Orginally, the idle control motor did fix a problem with the car always idling too high, then the cold start issue started about a week after I put in the new motor.
I have taken note that the vacuum to the motor on the air intake to direct the vent down to the headers is now nonexistant. I was under the impression the the computer thought the engine was warm from false readings of the coolant sensor, but that is not the case. I am now thinking that it could be the air temp sensor? Anyone got any suggestions or info on Ford 80's fuel injection cold starts? Thanks.

 

cold starting issues can be caused from needing plugs, wires, cap and rotor kit and even fuel filter restricting fuel from engine like a friends car is doing...