I have an 06 f250 superduty, 6.0 . Last week I rolled into the throttle up to about 95 and then backed off. After which it developed a thumping noise, not metal, more like an air thump in the intake. Not throwing any codes, still runs strong, pulls boost, etc. The motor does have 285,000.
View 7 RepliesMy 2011 F350 - 6.7 has developed this KRAZY thump, snap noise under the hood, loud enough to be heard inside the cab, and I cannot find out what the heck it is. It is not directly connected to the motor, you can rev it and the noise does not change. the thump is like, every few seconds or so, especially when the motor is cold. I am afraid this is a 2000 dollar noise and the truck is out of warranty.
View 8 RepliesI have a code for #6 low contribution and a thumping noise out the exhaust. When I turn number 6 injector off the popping/ thumping goes away. Truck is straight piped and deleted. It started doing this after getting on it hard to get on the high way. Sounds like beating an empty pop bottle on something
View 14 RepliesI have recently bought a 04 f250 6.0, and it has the intake thumping noise that varies speed with idle... I was told it could be a broken rocker, a bent push rod, or a broken roller... I am not that much experienced with diesels. I've spoken to the dealership, and they don't wanna fix it, they said it wouldnt hurt it to drive it like that, but the noise bothers the hell out of me, and everyone notices it. so i wanna get it fixed. I am hoping its just a rocker. if it is just a rocker how deep am i in? truck has 240xxx miles on it, and runs perfect other than that noise.
View 7 Repliesmy truck under throttle sounds like a jake brake noise that kicks in an out comming from turbo does it supose to do that
View 11 RepliesI'm looking at maybe trading for a 2004 F350 with a studded and deleted 6.0. It has a "thumping" sound coming through the intake like an exhaust valve is staying closed. My question is, how common is it for the rocker arm retainer or rocker itself to fail? It has 204k miles, and the owner says he was on his way home about 2 weeks ago and it just started doing it.
View 3 RepliesI have an odd sort of occasional vibration in my 2004 W12. I've read the sticky FAQ info posts concerning vibration, but I can't find a report with the same symptoms. Here are the observations:
1. When present, the vibration comes in very mildly at 50 MPH and peaks at 65 MPH, then dropping to barely discernible at 85 MPH.
2. The car shudders under the vibration, at worst resonating interior items and can be felt through the seat.
3. The vibration ceases IMMEDIATELY at any speed when coasting with the throttle backed off.
4. Curiously, the vibration seems to be much more noticeable after about an hour's drive. Before that, not so much.
5. VAG-COM does not indicate any misfires... I was sure I have a bad coil/plug... but the controller shows no such evidence. The throttle-on shake feels like a miss.
6. Brakes on/off makes no difference.
7. Road surface does not make any difference.
8. Near new (2K miles) Yokohama YK 580 all around, stock rims. If it's balance, I doubt it would decrease at higher speed (being sub-critical). Likewise for belt bubbles or other tire flaws.
Some posts have pointed to worn suspension link bushings causing mechanical resonance at certain speed ranges, perhaps aggravated by engine torque on the mounts, so I'm leaning in that direction (bushing replacements) if nothing else comes to light.
Yesterday it was running fine today only half throttle, going up a hill no power throttle push 12 down let off the throttle engine smooths out and starts picking up speed ....
EGR stuck????
CAC boots look good do not hear any leaks on the tubes
no smoke
ICP 675 at idle full temp, cold 1200
OEM filters with OEM caps
ficm 48.5 to 47.5
Can hear the turbo spool up
Oil temp less than 10 dec difference with water temp
No code showing up
141,000 2003 F-350 dually
I did some searching and cant seem to find this in a 6.0 (massive results in IDI)
If I rev my truck over about 3200 rpm and release the throttle, as it comes back down to idles it will stall.
Ficm voltage is fine and I am running a stock tune, ICP doesn't seem to drop until the stall...
What should I be looking for?
I have a 2012 6.7 4x4,CC,SB, truck seems to run fine, I've only had the truck for a few months. The other day I laid into it and pulled hard, as I passed 3/4 throttle the truck backed off and didn't pull as hard. I backed off from full throttle back to 3/4 and it picked back up again.
Seems odd, I pulled a 1600 gallon water tank up a hill today and experienced the same thing again. I really don't understand why it would do this. I searched this and found one forum where several people experienced the same thing but no solution, all on stock trucks. I have a Spartan tuner an delete, I run the 80hp tune. Also when I got the truck I changed the oil, fuel filters, and air filter.
I have been having that nice thumping noise that generally accompanies worn out sway bar bushings. I did bushings last spring but a noise came back shortly thereafter. Finally got bothered enough/ found enough time to take a look at it and tracked it down to the sway bar again. My right front axle mount has taken damage before and is now all bent up, not allowing the bushing clamp to hold tight to the bushing. Pictures of the issue are below.
Front view of the entire mount.
Rear view showing the sway bar mount plate.
I am unsure what to do about this mount. As you can see it has been pretty messed up by the PO. What could be done to fix the issue?
I have a 6.0 in a 2004 E-450 that starts and runs like a top except that it will not idle below 750rpm. If I give it just a tad of throttle it runs well. You can slowly let off the throttle and when it gets below the 700 it just dies like you turn the key off. Ford dealer spent piles of money on it and couldn't figure it out.
Got it in my Powerstroke shop and replaced CMP & CKP & tried another FICM. Is it possible that it would be the accelerator pedal assembly? The volts are what they should be but it dies so fast that the scanner can't see what's happening till it's too late.
It comes up with P2132, P2122, P2127, P2138, P2139 which are throttle related but am wondering if anything else could cause this before I start throwing more stuff on it.
So I started to NM from fort worth texas with my 33" camper blew my CAC pipe four times. Finally got there. In the morning it took longer than expected to start. When it did white smoke. That was replaced with black smoke under full throttle.
I went from elevation of 700 to 8000 Ft. Should I care about black smoke? Meaning should I take it to Ford and get a rental car to get it looked at for our trip home.
96 degrees towing at 70mph with lots of climbing mountains.
Here are the basics:
1. Suppose I come to a dead stop or a rolling stop and I continue keeping a small or very small amount of pressure on the accelerator. When I try to start again gently, there are two outcomes: (a) the "hesitation" or "no or dead throttle response," when I had added only a small amount of pressure, or (b) a "lurch" when I add more pressure to counter act the hesitation!
2. On the other hand, if I come to a stop or a partial/rolling stop, and remove all pressure from the accelerator before I start again, it seems I can start from a stop normally, both gently and under control. I have been experimenting by being certain there is no accelerator pedal at all prior to any start from dead or nearly a dead stop. That isn't, however, a fail-safe approach because of various driving conditions.
But, even if that provides a partial remedy, there is still a problem because this isn't the way the accelerator should work. It should not take all that learning, adjustment, and counter-measures to drive safely.
I certainly agree with the another poster: either of the two results of this: the "hesitation," and/or the sudden "lurch," could put the truck in a dangerous situation. I already have experienced this near chaos a couple of times.
So, is this problem continuing to appear on 6.7 2011 Fords, and, if anyone has a 2012---has this problem appeared on the most recently built Fords?
So while driving just now the truck went down to idle and no matter what I did to the gas pedal the throttle would not change. The truck didn't die but would just sit at idle. It was like the gas pedal wasn't connected. About a minute later it surged a little and then I was able to drive like normal.
History- last week while at a red light the engine surged and then almost died. Light changed and I hit the gas....and stayed at idle...then died. Restarted and died two more times and then just drove like normal. Changed fuel filters and and checked fuel pressure. Under boost it was 38-40 psi. Idle it was 45. Cac tube replaced due to cracks.
My truck has been doing great lately after the major surgery she's been through. She is an '06 F-250, with about 238k miles. I've noticed a few days ago that there is a grinding noise and feeling in the gas pedal. (Or diesel pedal..? ) I can feel it right when I slightly ease into the throttle. It goes away once I'm up and going. But its the kind of grinding that sort of worries me. It is also apparent when in reverse, almost more noticeable.
View 3 RepliesOk so the other day the truck started smoking excessively (white smoke) mostly just when cold.. I didn't think a whole lot of it because I figured injector stiction. (The truck has 160,000 mi on it). There was not a noticeable miss while idling though. Last night I was driving and started to get an unresponsive throttle and it continues today after its warmed up. It does it when its cold also. Got a CEL today and went to Autozone for the code read...
U1900, P0528 & P0404
P0404 EGR valve
P0528 Fan speed sensor
U1900 ???
I am going to look at EGR valve here shortly and clean it try to get it functional again but I think it is coincidental and it doesn't have anything to do with the throttle issue...
Truck had been running with a bit of a skip and shuddered after throttle was applied and then stopped (would drop to 400 RPM and shake real bad). Had some misfire codes so I decided to do some digging. Where to start looking for air leaks pre upper fuel bowl?
YouTube.....
Also, does this mean the air has toasted my injectors?
YouTube.....
I have already logged 6K miles on her, crazy, but it's my job. I have pulled 5 maybe 6 trailers (form trailers, about 15K pounds loaded, this time of year). Loaded or unloaded, when I push the throttle in 2nd, 3rd gear, I feel a shudder, like transmission shudder.I know this thing throws down 800 ft. lbs. of torque, should I not be pushing it so hard? Or, what am I feeling?
View 14 RepliesI just recently got my truck back, My father and I switched vehicles due to need and distance's being driven. 2005 F350 6.0, 164,000 miles
I couldn't wait to drive it again, I spent hours detailing and cleaning. Well I go to start and noticed it struggled to start, and didnt seem to be idling right. I looked under the hood and it was leaking fuel from the Regulator. I left it parked and never drove it since he last did. I read around on these forums and I bought the blue spring upgrade kit.
Now I notice it shakes at idle a lot more than it used to, pretty bad at times. Then upon driving it shakes even worse upon acceleration attempts, and has very poor throttle response. I have to put it nearly to the floor and even then the acceleration is nothing like it used to be. Most of my trip was highway at 60mph, and anytime it would start climbing a hill it would shake pretty bad with the acceleration. When i let off the gas to slow down before braking it stopped the shaking.
So I read around on here and I went back and used the factory bowl and valve for the regulator, still had the issue. Next I went back and replaced the blue spring with the original, still have the issue.
I just checked the FICM and it is reading between 48-49 during key on, cycle, and cranking.
Batteries are great
Alternator only reads 13.6 at 2k rpm idle, but have not had charging issues.
My father says he never noticed anything wrong with it other than it occasionally missing out. But I don't see how changing the fuel pressure regulator would have caused this. Especially since I tried every combination of oem and aftermarket parts, ensuring that all the connections and parts were installed correctly.
So I was driving to work and the truck lost throttle response. There was very little of it! Came to a stop then it didn't barely want to move, pulled over then it died on me! No clue what to look at! 2005 6.0 232k miles
View 14 Replies