Listen for a loud hissing type noise when the engine is idling. Find the source of the noise. A common problem is a vacuum leak that is caused by the PCV hose rubber fittings collapsing. They look like formed rubber hose connectors similar to the ends of a spark plug wire.
SOURCE: My 1999 ford expedition won't start
check your ignition module,most of the time its on the side of your distributor
SOURCE: 1999 ford expedition rough idle allready replaced
First, go to Autozone or Oreillys for a free scan. Then get a gasket for the airhorn to intake manifold. You need to undo the 8 bolts for the airhorn, remove the base gasket and clean any passages underneath.
When the intake manifold is dirty in that area you will get false EGR flow errors. Once clean it should idle better.
Testimonial: "thank you i have done everything but that"
SOURCE: Everytime I stop and try
On top on the engine, all the way to the back, and down a little, there some vacuum connection, one has an elbow that always leak's, start engine and feel back there, 9 out of ten time's that's the problem, that will also set an engine light on for lean.
Testimonial: "Thank you so much. That was exactly the problem.. I never would have found it on my own."
SOURCE: 2000 ford expedition ,,rough idle in park..rough
Check the fuel pressure at the rail assembly, there should be a min of 40 lbs at the rails. Do you have any loss of power under a load? You may have an issue with your o2 sensor that is causing the ecm to send an improper signal to the engine ign/fuel map.
SOURCE: The 4WD will not disengage on my 1999 ford expedition
hey well i have similar problem on my 2000 awd, it seems to get stuck on 4 all the time. when i turn it grinds and thumps like heck. anybody knows how to go about this prob?
63 views
Usually answered in minutes!
×