RepMontreal
Active Member
- First Name
- Andrew
- Joined
- Sep 6, 2023
- Threads
- 1
- Messages
- 39
- Reaction score
- 33
- Location
- Gainesville, Florida
- Vehicle(s)
- 2021 Ford Ranger Tremor
- Thread starter
- #1
Hi everyone, I'm new to this forum. I'm having an engine ping/spark knock issue with my 2021 Ford Ranger. From what I can tell, besides a K&N air filter, the truck is completely stock. I've kept up with the oil changes and changed out the rear pads, but other than that I haven't done much to it. I started noticing the issue when a check engine light came on for P0402 exhaust gas recirculation excessive. The code would come on intermittently and usually clear after a few key cycles. During a trip up to NC hauling two bikes in the bed, the code came on 12 times and I started to notice the engine ping. I'm not sure if it began during the trip or if it was always there, as I only noticed it because my radio was off (I usually keep it on). Long story short, I took it to the dealership and they replaced the DPFE sensor. The engine light hasn't come back on yet, but the engine ping is still there. I've rescheduled to bring the truck back. My question is - What could cause this issue? The truck has 37k miles on it and I use it mostly to commute. The ping occurs under normal to moderate acceleration once the transmission shifts into 5th gear and will continue to ping all the way into 8th. It's intermittent, as it doesn't occur every time, but it does happen. I've only noticed it at normal op temperature, and it sounds like someone dropped some glass ball bearings in the cylinders. I live in Florida, and the hot weather seems to make it worse. I understand that higher octane fuel should fight this issue, but it kind of defeats the purpose of buying a smaller truck if I have to use premium. This truck is rated for 87 octane, and that's what I use. From what I understand, ping may occur due to excessive compression and/or hot air. I doubt the K&N air filter would cause it to run that lean, but I may be mistaken. I'm wondering if I have excessive carbon buildup on the pistons from the EGR issue causing higher compression. All this emmissions crap they put on these newer engines is a real pain (And, of course, it's only covered under a 2 year warranty). Thoughts?
Much appreciated, RepMontreal
Much appreciated, RepMontreal
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