these engines have a coil on plug. first i would change the spark plug boots because they are known to cause this issue by grounding spark from the coil to the block. its best if you can check misfire condition with a scan tool to determine this. if the plug boots dont fix the problem then try the coil pack. if that doesnt work check for a manifold leak (coolant or vacume). good luck
my idling on my 2001 ford focus is not idling correct, tried to adjust idling but there is no screw or way to adjust why?
Replace the Idle Air Control Valve only about $50. This would cause funny idling and stalling out.
want to know if my starter is going bad if
It's probably part of a fuel pump recall with Ford, make sure to take it into your local dealership, they should fix it for free in around two hours.
Maybe need tune up
misfire
If your car is stalling while it is idling you could have a vacuum leak in one of your hoses. I had that problem on my 2000 escort ZX2.
I have had the same issue in my 92 gt and i replaced the fuel filter, vacume lines,and changed the tranny fluid and problem was gone due to one of the three changes
Here is a link to a service bulletin that might help. http://www.fcsdchemicalsandlubricants.com/fad/tsb/031515.pdf Randy
check air intake hose for cracks between the ribs causeing to much air. if ok check dist rotor for burnt marks. also you should check brake power booster when appling the brake and this uit is leaking it will drop idle speed.the brake pedal should fill hard.
If a 1997 Ford Aerostar surges when low cruising the throttle body may need to be cleaned. There could also be a lose hose or one that needs repairing.
i found that in mine, it was the egr actuator