Re: 95 Escort Idle Problems
I just found this forum, so sorry if this info is too late.
My '95 Escort with manual tranny was stumbling badly on part throttle acceleration, such as when going up a slight hill in 5th gear at about 60mph. Downshifting into 4th allowed the car to accelerate fine under full throttle. Therefore I ruled out plugs, wires, fuel filter, fuel pump, dirty fuel injectors, etc.
I agree with the third posting by DeBosco that the cause is likely a bad IAC (idle air control) valve. I was too cheap to give Ford $85 for a new one. I removed mine and found the two circular pockets which allow air to bypass the throttle butterfly were encrusted with sooty, black dirt. I ignored the factory warning label not to attempt to clean the IAC, figuring what did I have to lose? I sprayed Brakleen solvent into both ports, and carefully worked it around with a small, soft brush. I paid particular attention to the springloaded shaft for the plunger. I think it was sticking, and not allowing enough air into the intake manifold for smooth running. I dumped the black liquid out, and rinsed two more times with brushing. Then I blew it dry with low pressure (about 20 psi) compressed air and put it back on the car.
The stumble on idling and partial throttle acceleration disappeared. And if it reoccurs, I know exactly what to do!
Hope this helps.