Hey all — hoping to get some input while I wait on a FORScan adapter to arrive.

Truck: 2022 F-250 6.2L V8, 42k miles (I am second owner, purchased at 32k miles)

Symptom: Developed a ticking noise on a recent trip. Noise is coming from the passenger side, front of the valve cover area. It increases with RPM/load but not strictly 1:1 with RPM — more like it gets louder as airflow/load increases. Also noticing an occasional slight rough idle, almost like an intermittent misfire, though not severe.

What I've checked so far:

• Oil level and condition — full, clean, only 2k miles old
• Unplugged the passenger side IMRC blue connector while running — tick did not stop
• Checked for exhaust puffs along passenger manifold — nothing felt
• Scanned with Foxwell NT301 — only a pending P0443 (likely from accidentally unplugging a black connector on the intake, unrelated). No misfire codes, no CEL.

Video of the noise here:
My current suspects:

• Broken IMRC flapper (unplugging solenoid didn't stop it — flapper may be physically broken and rattling with airflow regardless of solenoid position)
• Broken valve spring on passenger bank
• Exhaust manifold leak passenger side
• Bad coil/plug causing the misfire independently of the noise

FORScan adapter arrives tomorrow — plan is to check individual cylinder misfire counts, live oil pressure, fuel trims, and use active commands to force IMRC open/closed to test flappers definitively.

Has anyone seen this combination of symptoms on the 6.2L? Curious whether the misfire + tick together points to something specific in your experience. Also — does the noise in the video sound like IMRC flapper rattle or something more mechanical to you?

Thanks in advance.

 

Pull the valve cover and check for a broken valve spring, will probably be a exhaust valve because it's not back firing into intake or causing major missfires like a intake valve will.
Denny

 

You are probably right. Luckily, I am still under the 60k powertrain warranty and so this should be 100% covered. Will drop it off with them and report back.

 

Don't drive it to far because you could drop a valve into the cylinder and total the motor.
Denny

 

I had this on my 2019. I thought all the things you have checked...
Ironically I was about to make 4 or 5 round trips Nj to Fla. Pulling a 20 foot cargo trailer, and had new spark plugs installed. I had told them everything new. Plugs and wires. They decided they were saving me money by not replacing the wires.
I was not happy about that as the cost of wires isnt worth a problem at 2am in Ga somewhere.
Truck now has 80k.had approx 75k at the time this happened. All 5k oil changes. Mostly used as a commuter with 20 mile trips each way. So I found it hard to believe mechanical issues like lifters etc.
I found out what it was by accident. The radio had reset to an AM station. I had the truck idling. And I heard a buzz... I worked the throttle and the buzz followed the engine rpm... meaning for me a spark plug issue.
I had them replace all the wires. Ticking issue solved.
What had happened was the tech pulled on the boot to get it off when replacing the plugs. I forget what number it was but it was a particular pain in the ase. There is a metal protective collar as the plug is way recessed. However it happened the metal boot was shorting against the wire.
I think it showed up on the scanner as well. I cant remember. But I think maybe a code for intermittant ignition fail on that cyl.
I really hope that helps brother... much rather replace plugs and wires than internal engine parts!

 

Make sure you give us an update when you solve your issue.
I dont know about others but I plan on keeping my truck until Im too old to climb up into it... given some of the issues facing new vehicle buyers these days.
Very interested to hear how you make out.

 

I have an update. Picked my truck back up yesterday - drove the kids today to school - no more knock. The issue was actually a spark plug wire that came loose and was arcing. All they did was snap it back on. I feel like a total doofus but at least it was not a major issue.

 

I went through all the same emotions and was so relieved it was something stupid.
It really is amazing how it sounds. It really sounds like a mechanical issue.
Glad to hear its resolved!

 

OP, thanks for posting back!!