Ford Everest rough idle

My 2003 Ford Everest with a gasoline engine is throwing me for a loop. Check engine light is on, idles rough and sometimes stalls, and the error memory's got a code pointing to an incorrect fuel composition. I've already tried fuel injector cleaner, checked for vacuum leaks, and even replaced the fuel filter, but no dice. Fuel economy is also in the pits! Could it be bad gas? Anyone else wrestled with this?

4 comment(s)

I had a similar issue with my Everest (gasoline model). Same symptoms - check engine light, rough idle and everything. Have you checked the cable or plug connection of the component, maybe it's defective? I heard it's a pretty common fault.

Interesting! Cable or plug, huh? Which component are you talking about exactly? I've visually inspected most of the connections I can easily reach, but maybe I missed something specific. Was the error stored in the error memory in your case?

Yeah, the error was stored too. Sorry, I can't tell you exactly which component it was in my case, but the workshop guys identified a loose connection which caused the issue. Maybe you should visit a workshop. They should be able to locate the problem relatively easy with their tools.

You were spot on! Took it to the shop, and it turned out to be a corroded connector on one of the fuel mixture sensors, just like you suggested. New connector and labor came out to 95€. Runs like a champ now. Thanks a million for the tip!

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