Could be many things but my guess is the transmission fluid level,hope this helps,Gary
CEL glows running?
scan codes stored, use a scan tool ,
chuggs. my guess this is misfire.?
misfire code is P0300 (random) either stored or in pendings
misfire has many reasons.
1 cylinder is like P0301 #1 misfire.
P0300 all cylinder, so not knowing what codes is stored, makes diagnoses, endless.
also does it misfire hot or cold engine or both
going down the road, flat, hills, steady cruise, fast right foot only.?
just a hint of when, and how.? WOT up hills> (wide open throttle)
misfire is under BASICS.
1`; poor compression on hot motor? if fails hot.
2: bad spark ever consider doing the 60k mile listed tune up? if not why not? all steps. not just 1 filter.
3: bad fueling.
4: stuck open EGR (covered under 60k, clean it.)
there are tests for each fail point. above.
use a scan tool, no scan tool the job is 100 times harder.
SOURCE: car runs rough at idle
clean out ur throttle body, just follow the hose from the air filter to the throttle body. Need 2 people to do this. Don't remove the hose completely from the throttle body. Just enuff to be able to spray ur intake cleaner into the throttle body. Do this especially if its worse when the motor is hot, as this would confirm the problem.
SOURCE: 2001 Ford Windstar runs rough.
remove the coil pack and look at bottom of it if it shows any cracks coil is bad very common on these vans if you have a noid light check for injector pulse on #4 if you have pulse and good blue spark most likely the injector is bad you have to remove upper plenum to get injectors out let me know how you make out
SOURCE: MY 98 FORD WINDSTAR STALLS WHEN I IDLE OR COMING
I'd be looking at removing IAC valve, and cleaning it out with throttle body spray cleaner, and checking mounting gasket as well. Usually some success with cleaning it & spray ports it came out of, but if not you may need to replace it.
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