1999 Ford Expedition Q&A
1999 Ford Expedition Question: 1999 Ford Expedition random intermittent problem when starting
Sometimes when I try to start the engine it sounds like spinning gears making a high pitched grinding noise, like the starter isn't engaging or something. After I try it a couple times it will start and seem fine til it happens again. Like I said it is random as far as I can tell and fairly intermittent. - pele09
I would recommend to diagnose it, but it sounds like a starter problem. Make sure to check the flywheel teeth when you remove it. ACA Automotive - ACAkalb
Intermittent rough idle may be caused by the EGR sensor sticking, causing the EGR valve to stay slightly open. Our technicians tell us the valve and sensor must be replaced together to correct this...