1996 Escort LX - Serious idling issues
I own a 1996 Escort LX. Up until now the car has been bulletproof, only needing regular maintanence. The other day it developed an idling problem. When I come to a stop (ie. stop sign or light) and sit there for a few seconds the car starts idling erratically between 400 RPM and 1700 RPM. I should mention the car is an automatic. Eventually the car stalls because it is working against the brakes. In other words the car is trying to accelerate when the brakes are fully on. Obviously the car only stalls in drive or reverse (I have been putting it in neutral or park at lights to keep the car running).
The sporatic idle has a regular pattern which makes me think it is something electronic. It usually takes about 30s before this problem starts but recently it only takes around 10s. The problem stops when I press the accelerator. When I do this the cars RPMs jump to 2000 and stays there for a while before slowly decreasing to 800.
Any ideas? Your help is greatly appreciated.