F4Gary Posted February 2 Report Share Posted February 2 (edited) So was out cleaning up the interior and had the engine idling. About every 15 seconds the idle would slow a bit with the lower idle shudder, and then recover to normal. Like is would slow 75 rpm and then recover. Any ideas? Haven't checked for a code yet and now light on the dash. Car runs fine otherwise. 2017 Edge Sport 2.7L Edited February 2 by F4Gary Quote Link to comment Share on other sites More sharing options...
1004ron Posted February 2 Report Share Posted February 2 Was it with a full tank of gas? Quote Link to comment Share on other sites More sharing options...
F4Gary Posted February 5 Author Report Share Posted February 5 I don't think so. Quote Link to comment Share on other sites More sharing options...
1004ron Posted February 5 Report Share Posted February 5 Best get the stored error/fault codes read and that should offer some direction - I'd guess that it's the evap system, but reading the codes is the way to go. 1 Quote Link to comment Share on other sites More sharing options...
Got 2 Posted March 28 Report Share Posted March 28 Did you have AC or defroster on? (The default startup climate settings used to put the defroster on at start. And the defroster is meant to act as a dehumidifier to "dry" condensation on the inside of the windshield as well as melt ice on the outside.) The defroster controls won't show you the AC is on. And the compressor cycles on and off quite often. At idle, that's usually enough of a load to make the engine labour a bit until the throttle catches up to the load. 1 Quote Link to comment Share on other sites More sharing options...
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