800-900 RPM knocking in engine

[Jeddler]

I know this is old but I’ve had the same issue for awhile. Normally on cold starts I can hear and feel the rattle in my shifter from the 800-900 RPM range. I e had it at the dealer twice and they can find nothing wrong. One time I had my wife have it in gear with parking brake on and had her idle it 800-900 and seem like the noise is coming from my passenger side somewhere. If y’all find anything out please post your findings 🥹

I’m on my second Bronco Raptor this year. The first one had the “thumping” noise that happened in gear under a slight load that ended up getting worse/louder. I couldn’t stand it. I had the dealership come pick it up to diagnose the issue. They ended up finding the noise coming from the driver’s side cylinder head. Ford authorized replacement of the head and it was in the shop for 9 weeks between diagnosis, waiting on parts, and reassembly. I got it back and drove it for 3 days and then a cam follower on the driver’s side head snapped in half. Ford was forced to authorize an engine replacement. It was in the shop for another 5 weeks while waiting on parts. In that time I had submitted a buyback request which Ford denied without any explanation besides that “it didn’t meet the requirements” (which was complete bullshit). It was going to be in the shop for another month at least. I was so over it at that point so the dealership let me trade in the broken one for a new one. I feel like the new one is starting to make the same noise now too

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[CR_IN_UT]

I just got mine back today. Been in the shop since July 9. Sounded like a diesel (see my thread Diesel Raptor under Warranty for video). Started with "That's normal there is a MMS and not a TSB on it." and after arguing for someone else to look at it they wound up replacing left side head, cam phasers, followers, Turbo, cats, and god knows what else. Funny how nothing was wrong with it.

7 weeks later I got it back. Much like Jeddler above.

I think the worst part was that I pinged Ford on this forum and they didn't respond for days and days. I called the 800 number instead to start a case number and the guy literally told me, "We aren't mechanics and you shouldn't even be calling this number." I had to point out that my service manager was the one who told me to call and start a case number. The guy at Ford Customer Care also told me to go to another dealer if I am not happy with my dealers answer. Glad these calls are recorded for training purposes. What a joke ford has become. Glad I dumped the stock. Now the question is to keep it or get anything else. I love it but the reliability is a concern and the fight to fix it becomes annoying.

Good luck to you. I hope you get it fixed. I would start with the Cam Phasers. its a common issue on EcoBoosts.

 

[Draff1]

I know this is an old thread but I’m bumping it to see if anyone has found a resolution yet? Not sure we’re all talking about the same thing but the similarities I’m experiencing are:
1. Thumping, knocking sound seemingly coming from under the shifter area
2. Just above idle around 900 RPM
3. Sometimes in park during high idle, almost always in gear with brake applied just before acceleration
4. Seems to progressively gotten louder as the miles accumulate. Now 1 year old with about 12k miles
5. This is not related to the noisy cam phaser like start up or the DI ticking… I have those also. Damn, why do I keep buying ford product?

My guess is that this is a loose part, hose harness contacting the bottom of the vehicle at just the right RPM where there’s a vibration off-idle. Really annoying and given the 101k price tag, I’d expect more. I guess premium price doesn’t mean premium vehicle in FORD world.

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