I have a 95 escort with about 120 K that I bought about a month ago. It's a 1.9L, fuel injected, manual trans. It was running great untila couple of days ago when it started stalling if it idles for more than 30 seconds or so (which it does frequently because I deliver newspapers with it) It idles at about 500 rpm (this seemed low to me - that's what it was doing when I bought it - is it ok?) It idles fine for 20 seconds or so, then the idle speed will quickly drop to near 0 then back up to 500 several times before it finally stalls. At first I was very confused about why this was happening only at 3 am while I was delivering papers, but this morning I discovered that it only stalls when the AC is off. If I leave on the AC, it idles just fine - still at 500 rpm, but it holds steady and doesn't drop. Thanks for any help.