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2017 F250 6.2L, bought new, I have had the slow starting issues on and off since purchase, never had an engine code til now. Fuel Mileage 13-14ish mpg (according to the dash gauge) Over the last few months I have been getting random P0300 code pop up at start up(not every start up). Sometimes the code clears on its own other times I can clear it while engine running, after being cleared code doesn't come back while driving. No power problems, I tow trailers, tractors, boats, cars Etc. No issues. Wondering if I should do anything about it? It has 75000+ Miles, maybe a plug change?
2017 F250 6.2L, bought new, I have had the slow starting issues on and off since purchase, never had an engine code til now. Fuel Mileage 13-14ish mpg (according to the dash gauge) Over the last few months I have been getting random P0300 code pop up at start up(not every start up). Sometimes the code clears on its own other times I can clear it while engine running, after being cleared code doesn't come back while driving. No power problems, I tow trailers, tractors, boats, cars Etc. No issues. Wondering if I should do anything about it? It has 75000+ Miles, maybe a plug change?
If the system doesn't detect the conditions that caused the CEL to illuminate after a certain number of cycles, it goes into a "Soft Code" mode where it is still in the ECM but no CEL illuminated. After even more cycles where it doesn't detect the event, it erases the code considering it fixed. AFAIK. What this means to me is that you DO have an issue that is present intermittently. According to THIS article, it takes a 2% reading to trigger the cylinder misfire code. Since you have a P0300, it states that the misfire condition is going around from cylinder to cylinder. Why are you trying to clear the code without fixing it? Hoping that it goes away by itself? Isn't that like throwing away the MD's test result so the cancer goes away by itself? Are there any other codes? No power problems doesn't mean much to me since you don't have it strapped to a dyno with a baseline test before any of this happened. Cars these days are not like a carb car where you can feel it until it totally sucks. By clearing the code, you also wipe the freeze frame data for the mechanic to give him a better idea of what happened.
I had this same thing at 64K miles on my 2017/6.2. Ended up being plugs/wires. One bank (upper or lower I forget which) was more corroded at the connection to the wire the other bank was more dirty/oily as seen below.
A couple coils were corroded badly as well. There’s a way to pull them apart and clean I saw on here but I opted to get 8 new ones as I figured I would end up damaging them when cleaning, also some of them had tons of corrosion falling out so I figured they were about done.
owners manual says 96k but from what I’ve seen on here and elsewhere , 50-70k more common to start seeing issues.
I had this same thing at 64K miles on my 2017/6.2. Ended up being plugs/wires. One bank (upper or lower I forget which) was more corroded at the connection to the wire the other bank was more dirty/oily as seen below.
A couple coils were corroded badly as well. There’s a way to pull them apart and clean I saw on here but I opted to get 8 new ones as I figured I would end up damaging them when cleaning, also some of them had tons of corrosion falling out so I figured they were about done.
owners manual says 96k but from what I’ve seen on here and elsewhere , 50-70k more common to start seeing issues.
Mine shows some wear BUT NOT THAT MUCH OR OIL.
One of mine was done. The rest were saved with boots, pellet and spring. What I don't know is why Delco has the pieces but not Ford. What was Ford's idea? Replace the coils every 50K? I don't care what the manual says but 96K isn't happening. Those are rosy projections. I'm glad I did it at 65K. I should have done it at 50K seeing how corroded the pellets are.
One of mine was done. The rest were saved with boots, pellet and spring. What I don't know is why Delco has the pieces but not Ford. What was Ford's idea? Replace the coils every 50K? I don't care what the manual says but 96K isn't happening. Those are rosy projections. I'm glad I did it at 65K. I should have done it at 50K seeing how corroded the pellets are.
yeah I was surprised. I’ve pulled plugs out of a neglected 3.0 Taurus that had next to no oil. Out of the 16 plugs on my truck, I’d say 6-7 had this level of oil or close to this level, which for 64k miles is excessive imo.
yeah I was surprised. I’ve pulled plugs out of a neglected 3.0 Taurus that had next to no oil. Out of the 16 plugs on my truck, I’d say 6-7 had this level of oil or close to this level, which for 64k miles is excessive imo.
Those plugs have anything in common? Maybe valve stem seal?
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