madspence2

OK, I need help. I have a 1997 Expedition with 95,000 miles. Car runs great but recently (last couple of days) wont idle without stalling. I have to start it with more gas than usual and keep my foot on the gas at all times even at lights and stop signs or it will stall? I have also noticed a drain on the battery which I am replacing tomorrow. Any ideas?

Phil056

There are a couple of things you can do that might help your idle issues.
First thing that comes to mind is that your IAC (Idle Air Control) valve is sticking. It's behind the throttle body (5.4l it's on the driver's side)
Here's a link of what it looks like:
http://www.smpcorp.com/buyersguide/images/AC158.jpg.

If you can find it, you can take it off and clean it using a Brake Kleen type cleaner to free up the valve that goes up and down inside the part. Just be careful not to rip the gasket.

Second, you could clean the MAF (Mass Air Flow) sensor (located in front of the airfilter box). Open it up and spray the cleaner over the two silver sensors (could be black if really dirty). Let dry and reconnect.

PS. Disconnect the negative battery cable before doing any of the work. This will make the computer re-learn your driving habits with the cleaned parts.

Just my two cents,
Good luck

bigdee1227

i have the same problem right now on my 99 ford its in the shop now and the mechanic says thats the idle control is failing so he is replacing it now . i will let you know if thats the problem .

jdsmith75202

Simple fix please see my post at http://www.automotivehelper.com/topic344975.htm