General Ford Ranger Discussion General discussion of the Ford Ranger that does not fit in any other sub-forum.

Misfiring cylinder

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Old Jul 11, 2025
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cummings peter 70's Avatar
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From: Vashon, Wa
Misfiring cylinder

Hey Folks, I’m a new Ford member and I Love my 2010 Ranger XLT, 2.3 L, 4 cylinder. But I’m having trouble with a misfiring cylinder/shudder. I’ve replaced the spark plug wiring, put in new plugs and changed the valve cover gasket. I went away for a bit, but now it’s back. I does better when it’s warmed up and it doesn’t stop me from using it, but I’d like to try and resolve it. I’m a intermediate diy guy here so that’s a bit of a limitation.
Thanks for any help thrown my way!
 
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