Ford 6.7L Power Stroke Diesel :: Metallic Knock At Start Up As Marbles Shaking Or Popping Noise
Aug 21, 2014
I know this is an old subject that comes up from time to time. Most will notice it after an oil change or the first oil change anyway. Yet, some will never notice or experience the sound.
It is when you first start the engine, it has been described as a can of marbles being shaken or popping noise, maybe a metallic knock.
I have 17K on the truck now and this seems to be getting louder and more annoying. Sometimes it is louder than other times, and sometimes I don't hear it at all. I have always changed my oil right at 5,000 mile intervals. Fuel Filter at 13,500.
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My 2003 f250 6.0l just up and quit. It make a popping noise out of the intake when cranking. I am getting 1150 psi at the icp and ipr is at 62% which seems high to me. The FICM voltage seem fine unless the batteries are drained and I am getting FICM sync. I replaced the HPOP, ICP sensor and IPR about a year ago. I recently replaced the air conditioning compressor and power steering pump. I am at a bit of a loss. I did pull the IPR and everything looked fine.
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My 2004 powerstroke recently started making a loud knock during the process of starting. Will make the sound warm or cold, however I mostly hear it when the truck is warm as it cranks a little longer and about two seconds into the crank something starts knocking. After the truck starts it runs perfectly fine.
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I'm new to diesels. I just bought a 2004 F250 with the 6.0 V8. I have the high and low circuit, contribution codes on cylinders 4 and 8. I've only had the truck for a few days but I've been reading a ton. The symptoms are hard start, rough idle/shaking, no power when cold. When it heats up and I'm over 2000 RPM it seems to be just fine. Even when hot and below 2000 RPM it does ok. I've check the FICM. It reads 48V with key on and 48V running. My plan is to do the following:
Change the Fuel Filters
Change the oil filter
Change Air Filter
Change oil with 5-W30 synth and I have both Hot Shot/Rev-X
If that doesn't work, I'll replace the two injectors. How does that sound.
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Title says it all... Starts & idles pretty good. No codes. Has decent power on mild acceleration, any time you step on it more than 1500rpm it lets out little black puffs of smoke and intake makes that popping sound and truck jerks a little...EGR delete. HPO pressure is good. Injectors are fresh as of a year ago. Valves? Lifters? Turbo?
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My new to me (2K miles now) 2013 F350 with 52k miles just developed a knock. Oil changed 600 miles ago, Oil level good. No codes or CELs ...
YouTube...
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So I have just over 14k on my 2015....... I love the truck but have had a few small issues. I had a water leak coming in from the roof that would leak through the grab handle. Nothing major dealer replaced one clearance light seal and they said the windshield needs to be re sealed.
Then I had a god awful irritating squeak in the dash..... It only does it late In the day when it's been hot. The dealer said it was a loose air bag. I have had the truck back a week and it's doing it again.
Those are little issues that will get resolved...... I hate having problems with a brand new vehicle but I understand it happens and that's what warranty is for.
I also reported a bad shake to the dealer...... The truck will shake very violently and have a very loud "diesel" sound. It's very specific at when it occurs. It has only done 4 times in the past 6 weeks including today. The odd thing is the 4 times it has done it has been the same time of day in the exact same spot on the exact same road!!!!
Basically I leave my office sit in some traffic and by the time I get to the parkway it has been35 minutes or so. Only happens in 6th at 60 which is roughly 1,400rpm a slight load due to a small incline and it shakes real bad! The typical "diesel" sound you get when under a load is very pronounced almost to a knock. It will continue to do this as you slowly increase throttle until it down shifts and then goes away. I also caught it doing it and I manually shifted to 5th and it went away.
Because of the rpm at which it happens with slight load only doing it in 6th I lean to a Trans issue and more so a converter problem. It feels like converter shutter. I just don't understand the engine sound.
I gave very descriptive info to the dealer..... Several techs drove it and could not duplicate. I just picked the truck back up last Thursday and the dash squeak is back and the shake happened yesterday and again today. So I am a bit irritated to say the least.
I really hate the fact that I know there is a problem but I also understand if a tech can't duplicate it he can't diagnose it. However today I did get a video of it with my phone so they will know I'm not making this crap up!
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Today I noticed this burning smell under my hood and a bit of a engine knock on idle... It doesn't knock all the time tho ??
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I have a 2016 f350 super duty with 6.7L engine, at random times engine sounds like it has a rod knock, give more fuel, it goes away, driving at 40 to 55 mph the whole vehicle shakes all at different times and different days vehicle has under 6500 miles want to now anything before going back to dealer..
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I bought my 6.0L Diesel about a month ago. Recently when I turn to the left it makes a weird popping sound and gets the "death wobble" If I turn it sharply to the left it will then stop. Last night it got terribly worse and it wobbled at any speed no matter what. I put it up on jack stands and turned the wheel with both tires off the ground, and the sound still happens. I am only by myself and I tried to figure out what is wrong with recording on my phone to see if a ball joint was freezing up but couldn't see. Is there anywhere I should focus on more or less with the camera to see what the issue could be?
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I have a 1998 Mercedes ML. In the past few weeks, there is quite a loud metallic knock when I start driving. It does not happen if I take off real slowly. What could be the cause?
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I noticed a rough idle after driving an hour with a 6000 lb trailer and stopped at an offramp. Had no performance issues to that point in an hour drive. Then I noticed a good amount of white smoke coming out of the exhaust. The idle felt just like when I had a contribution/balance code on #5 a year ago, and a new injector fixed that. Before long (10-20 minutes later) the idle got real loud, like a big knock/loud tick every revolution.
I had a bunch of stored codes, so I reset them and later found a P0281 - Cylinder 7 contribution/Balance and P0404 - EGR control circuit range/performance were the 2 that came back. I drove it 2 more hours to get home. It ran well under load, but coasting or stopped gave the loud knock, and stopped and idling was a rough, inconsistent idle. It even stalled on me 3 times when braking for a red light (auto trans). There was a lot of white smoke all the time, plus a little dark smoke on acceleration.
What would you recommend for troubleshooting steps? I could put a new injector in #7 and clean the EGR valve, but want to have a good idea that will fix it first. Is there a good chance I have a messed up piston in #7 now?
Codes I cleared:
P0148 Fuel delivery error
P0234 turbo overboost (i know i need to pull and clean the turbo anyway, unrelated to today's issue)
P0281 Cylinder 7 contribution/Balance
P0404 EGR control circuit range/performance
P0670 Glow plug (I had the module unplugged a while ago)
P0683 Glow plug (I had the module unplugged a while ago)
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I went out to the store today all was fine came back out and started driving got 2 miles down the road to a red light and the truck about stalled no power it doesn't smoke at idle but revved up it blows black and some white and the truck shakes. I am thinking its stiction or bad FICM????
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This morning I noticed when I started the truck had a rough idle shaking truck. The truck felt weak. Boost would go up but truck felt like it was in sand. While coasting on the highway at 50-55mph the truck not only lags in power but vibrates viciously until the overdrive kicks in that vibrations in cab and ssteering wheel go away.. What might be going on?
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Just noticed a loud squealing sound coming from the engine area before I start the truck, but with the key in the on position. I'll try to get a video the next time it happens. I assume it's something starting/warming up, but it's louder than anything I've ever noticed. It lasts probably 20 seconds.
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I have a 2011 F250 4X4 Supercab 6.7L that has a highly annoying knock/rattle (you can't hear it) under the front passenger side floor. It feels like someone is tapping on the floor beneath your feet any time you hit a bump or when on a rough road.
Its been in at least 5 times in 2 yrs with cab mount adjustments/shims, cab mount replacements and realignment of the exhaust and brackets. The knock has been there since about day one (I assume anyway, I'm rarely on that side of the cab) and have burned up my 36k warranty, although I'm told i'm good because it is pre-existing.
I keep insisting its in the suspension and keep being told they can't find anything. The mechanic indicated that this is a known problem, but Ford has not put out any service bulletins other than to do the cab mounts and suspension. Has anyone had this problem and found the solution?
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I have a 2012 F350 KR with 14,000 miles. Over the last month, I have had 5 or 6 instances where Im driving and barely on the accelerator and the engine or transmission shakes or vibrates violently. Its happened at around 40mph and 70mph. It seems like the engine is not getting the right amount of fuel or maybe its the transmission stumble or shake that I have heard about. It is a fast back and forth of either the engine knocking or gasping or its the transmission. It can be very bad.
I went to the dealer and of course, there were no thrown codes on the pcm. They did the reflash and 20+ miles of driving and said there is nothing wrong. Last night, I was on a country road at about 40 mph and it happened again. If I press the accelerator down harder, I will stop. If I keep the accelerator at the same spot, it seems like it would just knock, or shake violently forever. Do we think this is an engine issue or a transmission issue?
Its not a slow back and forth of the transmission like Ive seen in older cars. IF it is the tranny, its happening really fast..if not, its maybe the engine?
I cannot tell or don't have enough knowledge to know if its an engine prob or transmission. I just know it sounds and feels like the world is ending and the shake, knock and vibration is going to tear the truck up..
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Finally after 423k plus miles on 7.3, bought 13 250 with 6.7, love it but... I noticed some shaking @ 45 mph, below or above no problem and only when cold. I was thinking it could be tires, they are Conti 18" original with 65 psi and I do not pull anything.
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I replaced the all 6 tires and all 3 rear u joints on my 03 dually and steering all feels tight but I still get a vibration above 60.
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Was on the way home today and was taking a long sweeping left-hand curve at 60 and got a horrible shake in the steering wheel. Kinda scared me a bit and let out of the throttle a bit. Didn't happen after and never has before. I'm under the impression it is more shocks maybe then steering, Reason I say that although I don't get a lot of bounce if the road isn't perfectly smooth I can really tell it. What do ya'll think?
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Having issues with their mirrors folding in? One of mine makes a popping sound and will not fold in or out. I can hear the motor running, sounds like a gear is out of alignment. Have tried to reposition manually with no luck. Is there a rebuild kit for the internals or will I need the entire mirror assembly?
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