2004 Ford Focus ZX5 - stopped at a light, car will skip beats/rhythm while idling. Random w/ no set pattern.
I just inherited a 2004 Ford Focus ZX5 with a little over 76,000 miles so I already know it's going to have some issues here and there. My main concern at the moment is when the car is stopped at a light and idling, it sounds like the idle skips/hiccups in it's rhythm. It's very random and doesn't happen at every stop and there is no set pattern to the change. I have a 2005 Ford Focus ZX4 and I've never encountered this problem with mine (it has a little over 131,000 miles). Any ideas on what it could be causing this? Thanks!
Possible ignition coil miss or a Fouled plug, is there a engine light on?
No and that's where the issue lays, I called Ford and they told me they can't pull codes if there is no check engine light. It doesn't seem to do it while the car is maintaining speed or at least I haven't caught it.
Could be that the throttle plate and IAC need cleaning.
Someone mentioned a throttle position sensor, could that be it also???
Start with cleaning out the throttle body first.
check your motor mounts!
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