Hi,
My 2000 Ford Expedition with the 5.4l motor has been idling really rough when its cold in the mornings. Well it has become colder here in Nebraska and I have started to notice that it is now starting to idle really rough all the time. I cant notice any hesitation because I have only had it for a couple months. I was thinking about ordering a new idle air control valve to fix it but not sure if thats totally the problem. It does not have a check engine light on either but it just idles really rough when I am at a stop light. The rpms drop three or four hundred then go up and it just idles like it has a bigger cam. It has never died but I am afraid it is going to. Any ideas on what to check first? I was going to order that new iac valve off ebay since the expedition has 123,000 miles on it and might need a new one.
Thanks
My 2000 Ford Expedition with the 5.4l motor has been idling really rough when its cold in the mornings. Well it has become colder here in Nebraska and I have started to notice that it is now starting to idle really rough all the time. I cant notice any hesitation because I have only had it for a couple months. I was thinking about ordering a new idle air control valve to fix it but not sure if thats totally the problem. It does not have a check engine light on either but it just idles really rough when I am at a stop light. The rpms drop three or four hundred then go up and it just idles like it has a bigger cam. It has never died but I am afraid it is going to. Any ideas on what to check first? I was going to order that new iac valve off ebay since the expedition has 123,000 miles on it and might need a new one.
Thanks