Results for "misfire-codes"

Staring at my broken-down F53 motorhome with a list of Ford dealers, having no clue which ones actually know how to work on RV chassis. When I was in Knoxville, TN, I encountered several issues including an intermittent engine misfire, a missing front suspension bumper, and a completely missing rear sway bar mount.

I've been calling around to Ford dealerships and most either refuse or say they don't have anyone qualified to work on these chassis. The few places I found are booking months out, which makes me nervous about emergency repairs.

My experience with Paul Miller Ford in Lexington, KY was excellent. Mike, their motorhome advisor, got me in quickly. They diagnosed a burned plug wire, ordered parts, and had me back on the road in just a few days. The repairs were even covered under warranty.

Is there a better way to identify which Ford dealers are actually equipped and willing to service RV chassis? I want to make sure I find reputable places before I actually need them. …more

Apparently I did everything right replacing the engine coils and plugs on my 2014 Fleetwood Bounder 35K with Ford V10 at 49,000 miles yesterday but I'm still getting random misfires at high RPMs. Experiencing random misfire codes exclusively at high RPMs (4000-5000) during hill climbs under load conditions. Check engine light flashes intermittently, occasionally solid.

Completed diagnostics include: full spark plug replacement, compression testing (all cylinders within spec), three ignition coils replaced, MAF sensor cleaning, premium fuel upgrade to 91 octane, and Lucas fuel treatment. Engine exhibits smooth idle and normal operation at standard RPMs. Scanner consistently returns P0300 random misfire code only during high-load, high-RPM scenarios.

Given the intermittent nature occurring specifically under load conditions and the systematic elimination of standard ignition components, what are the most probable remaining failure points? Seeking technical analysis of fuel delivery systems or overlooked ignition components that could manifest these specific symptoms. …more