Rough Idle & Knocking

[thrashx]

On Monday my Raptor started to idle low and near stall while waiting at a red light. I put the vehicle in neutral and revved the engine and that seemed to keep it going. When the light turned green the engine started to knock and the rough idle persisted for the rest of my 2 mile drive home. Today everything seemed normal. I'm taking it in for service tomorrow. Anyone experience rough idle/engine knock? I have 50K miles on my 18 Raptor and it runs on 93 octane fuel.

 

[smurfslayer]

Stock or aftermarket tune?
I’d pull codes if possible but since it’s going in the shop tomorrow, they should be able to see if anything was stored.

 

[GCATX]

I know it's dumb, but I've had a few occasions for my 18 to do some crazy things that a simple restart fixes and never returns. If it was me, I would spare myself the heartache of a dealer experience unless it happens again. It's a rolling computer after all.

It's part of the Raptor mystique.

$.02

 

[thatJeepguy]

Try some injector cleaner? Lucas or bg?

 

[CoronaRaptor]

Maybe a bad battery connection, etc Good luck at the dealer, let us know what they find.

 

[Trey Harlow]

Had the same problem with my ‘19. It is at the dealership now. Codes P0014 and P0018. Cam phaser and crank shaft problem per the service manager.

 

[Stang2]

My 2018, all stock and only high octane with routine oil change every 5k miles. Cam Sensor recall...when the dealership went to replace the sensors they found a hole in what I call the flywheel. Metal shavings throughout. Ford approved a new long block yesterday.

 

[thrashx]

I thought the issue had worked itself out as the truck has been running fine. Tonight as I pulled into the garage, the RPM's dropped low and near stall, I could hear a ticking noise from the engine. My guess is the issue is going to go away when I take it in to dealer. Sigh.

 

[Blkshp18]

Fuel pump maybe?