Our 2001 Ford Windstar is idling roughly. We just took it to the Ford dealer and they did a diagnostic and thought the problem was just spark plugs and wires. They replaced these and the van runs fine, but idles very roughly.

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: 2001 ford escort, rough idle, runs smooth while

Your IAC may be defective, first check the canister purge valve by removing the large hose off the charcoal canster and plugging the hose with a bolt or something you can fit into it, then try it also check PCV valve and see if it's bad. there are more things to check like fuel filter fuel pump and or fuel strainer if fuel tank but would need to have more information to help.

SOURCE: 2001 grand am se1. Rough Idle - Spark Plugs and Spark Plug wires

What engine? You need to have it scanned for codes. Autozone will do this for free

Testimonial: "thanks for your quick response!"

SOURCE: u i have a 97 ford escort that idles rough so i

Often, on the Escorts of this vintage, rough idle can be due to a leak in the vacuum system. With the engine running, listen closely for any tell-tale hissing sounds coming from any of the vacuum hoses. Check that they are all securely in place and the end-clamps are all tight. Also check that the PCV valve and the hose connecting it to the manifold are securely in place. Another possibility is the Idle Air Control (IAC) valve. If it is clogged or sticking, it can cause rough idle. Refer to a service manual to diagnose the IAC valve. Other things to check: make sure that the air intake is unobstructed and clean. You might consider cleaning the manifold and throttle body. Check the air filter and replace if necessary. Let me know if you have any other questions.

SOURCE: 2001 Ford Explorer idles rough when at a stop in

sounds like a vacuum intake leak..check a those little tubes for cracks and security. also check your transmission levels, this will sometimes cause a surging problem while driving..if all this checks good then it might be dirty or clogged injectors..purchase a can of Sea Foam from Autozone $10 pour in 1/2 can to half tank of gas and drive around for thirty minutes..highway driving preferred, and see if that will clean up the fuel system.Can i get some feedback, thanks