F250 sputtering
she sputters around 40-50 MPH..... Changed mass air flow- cleaned carb- checked for vacuum leaks-- Idles fine. Would this be a bad coil? it's a V10. It is not throwing any check engine light. Would a scanner uncover anything?
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15 Replies
- go to an autozone or oriellys and have them do a code check. Its free and go from there. A coil going bad should throw a code it did on my sons f150.
- Could be a bad coil or worn or fouled plugs or wires. It could also be a fuel pressure issue, sticking injector, or sticking lifter. A good garage can put it on a diagnostic tester and check to see what's going on. A sticking or weak injector won't necessarily throw a code right away. I would definitely get it diagnosed before throwing a lot of money at it.
One thing you can do that's free is to go out after dark and look under the hood with the engine idling. Look for arching near the plugs. It indicates bad plug wires. - IDK, I suspect at some point it will
- will that show up on a scanner without throwing a check engine light?
- Most likely a COP issue
