Ford 6.0L Power Stroke Diesel :: 2006 - In Tow Mode Tranny Clunk And Shudder?
Oct 8, 2016
2006 long bed with LS diff sometimes gets a fairly robust CLUNK! sound and feel when decelerating with tow mode engaged. It only happens once per 20 trips and only about a mile down the road, and it only happens once in a blue moon. It definitely is the rear end making the noise and brief shudder. Otherwise the truck runs extremely well.
I had the pumpkin off and fluid changed with Ford friction modifier added at about 100,000 miles. Truck is at 160,000 now. I just got done with a trip in the mountains of Idaho carrying a truck camper and used tow/haul mode extensively for engine braking and climbing, worked like a champ. This was just one trip of many this summer. This is about the only thing wrong that happens on my truck, but usually occurs before I get very far from the house. Should I just forget about it?
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So my 06 6.0 4x4 is just about to break 200,000km and I've done most of the upgrades and work myself. (All the updates are in my Sig). My problem is that when I'm cruising and the engine is at full operating temp, if Im bellow 80-100km/h nothing but as soon as I break into that speed range about 2000rpm the truck will start to shudder. Almost feels like its not firing properly is the best way to describe it. Why this could be happening or causing it?
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I have a 06 6.0 no start . I was at a light felt a slight shudder went to take off felt another shudder and it just died. Changed fuel filters, unplugged icp no start still. No code at first now throwing p2291. Fuel pressure is at 62 when cranking. Hooked up air to the icp port and only heard air coming out of both valve covers inlets. Ipr was at I believe 60 to 65% when cranking. Little back round 2 years ago I did the whole sinister diesel top end kit and put the updated parts in. New o rings on everything that took them, new egr valve, standpipes and dummy plugs. On the injectors all new o rings and crush washers. I believe that's everything.
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This is the only 6.0 I have owned. My tranny temp (with the Torque Pro) is pretty much always the same as my ECT. My ECT will move, and less than 2 seconds later, the tranny will move to the same temp. Is this normal? I was expecting lower tranny temps, but maybe it should be the same because of sharing the radiator.
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I'm at 5,500 miles and the last couple of mornings I've had my tranny slip and lunge between gears, sometimes 2nd and 3rd and once out of 1st. I know there's an update/flash that needs to be done but my build date says not required. My truck was finished April of 2012. I'm going to call the stealer but I'm sure they will "check it out" and say nothing's wrong so it would pin point this issue.
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Took my first camping with 2012 King Ranch F350 and 37 feet Challenger 12k fifth wheel trailer over the weekend.
I noticed there is lot of transmission slips in first gear. Once it enters 2nd gear, no more slips.
My previous Chev 2008 2500HD diesel didn't slip much with same trailer.
Is this normal for this F350? My rear ratio is 3.55. No slips without hauling.
Maybe I need to ask dealer to check 1st gear towing?
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2011 F-250 6.7
H&S Mini Maxx
Fully Deleted
What is going on with my tranny. I purchased my truck back in August with only 14k miles on it. It was a weekend camper hauler for the previous owner who drove very little. He bought it brand new and had it fully deleted with the mini maxx put in right away. I bought it in that current condition. Since buying it I have used it as a daily driver. Current mileage is 21k.
About 2 weeks ago I did 2 things. First, I decided to update my mini maxx from H&S's website to make it current as I was having a really firm shift from 2-3 gear. This is a know issue with my year truck due to a solenoid issue and I figured a more up to date tune might work. Second thing I did was tow for the first time since getting it. I towed an open bed car hauler with an SUV on it down the highway for about 150 miles. Prob about 7k#s. While on this trip I noticed my tranny temp go up to 235 degrees. When I reached my destination I parked the truck and stayed the night and returned back down the highway unloaded not towing anything and it still went back to 235. Trip was on the highway and is mostly flat with very few hills.
I monitor all gauges religiously and know my trans has never even gotten close to 200 before. My oil and coolant were both running in their normal mid to high 190 range and everything else appeared normal about the truck. I have talked to several diesel performance shops and received multiple ideas about what it might be. All seem to be in agreement that it is not my tuner as no one else that I can find has had this issue with their mini maxx after updating.
What is wrong range from the solenoid issue making the gears slip causing additional heat.... to my thermostat in the coolant valve having gone bad. I have had it in the local Ford dealership all week and they are completely clueless. They claim that everything they can check with their computer for flow and whatnot is functioning perfectly fine. They also claim that at 235 it is not out of spec according to Ford and that Ford doesn't consider this temperature to even be an issue or something that needs to be fixed.
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I have a 12 cc 4x4 drw. I hauled a bull and a cow about 100 miles this morning. I was pullling approx 6k including the trailer. The temp was about 75*. 50-60 miles into the trip I switched to the oil temp screen and the oil temp was 224* and the trannie was 199*. I was going into the wind which was about 20 mph, and I was traveling 75mph. The truck never lugged down heck it never shifted out of 6th gear. When I unloaded the cattle the temp came back down around 190*. Headed home and the temp got up to 226* and the tranni went to 205*. This was going with the wind and just the trailer. I am using oem 10w-30 motorcraft and motorcraft filters. The truck just has 9k miles on it. I am thinking that the oil temp is a little warm, should I be worried. What should I look for to diagnose. I like to do my own diagnosing if I can, the dealers around me can't find anything wrong even if you point the leak out to them. Should I be using a different oil?
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So I have had this happen 3 times so far. As I am driving, and step on the accelerator, I get a very bad shudder in the engine. The whole front of the truck is jumping up and down. Once I slow down it stops and is fine.
It has happened on the following three occasions but it is intermittent and does not do it all the time:
1. driving up a long grade at 45 mph for 5 minutes. I stepped on the accelerator to speed up and it happened.
2. Getting on the highway from 45 to 70 fairly quickly.
3. Once I got on the throttle heavy and got up to 80 MPH. I laid off the throttle to slow down and when I stepped on the accelerator again it happened.
I was not towing at any of these times. I do have warranty still but since I cannot always replicate it, I have not taken it to the dealer yet.
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The past month or two, my garage-kept 2011 F350 6.7 with 38K miles will shudder on startup for a second or two or three then runs normal. What would be causing that? She is my every day driver, but I don't drive her every day. Seems that the longer she sits, the rougher the startup. Last time I drove her was Monday. Started her up tonight to run to the store and she shuddered for about three seconds.
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Anything besides a worn out Torque Converter clutch that might cause the incredible amount of shaking when the transmission tries to lock the TC?
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Recently had a rear pinion leak and replaced the seal and nut. I jacked up the truck, took off wheels and felt the drag so I could duplicate once i had the new seal as I tightened the nut. I've done this only once before on my F150 years ago, but when I put the driveshaft back on and test drove it, i had shudder when not under load. So when I let off of the accelerator, it had shudder and more the faster I was going.
Obviously thinking this is a preload issue with the rear axle but would this be caused by tightening too much or too little. I had no issues before so I would think that the driveshaft itself is not the issue. I can't confirm that I got it bolted up in the exact same manner as before in relation to the flanges but still wouldn't think that to be the issue.
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I bought my f 350 new from the dealer and have had many of the problems associated with this truck. Now I have a severe shudder while under acceleration when i either let off the gas or increase speed the shudder goes away. My dealer thinks it is injectors but I have little faith. Shudder seems to be rpm consistent and seems to be in the front end. oh yea it idles great and runs great except at that specific range.
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While I am loving the fuel millage and ride of my new truck, I have my first concern. In the last few weeks i have hauled a truck bed full of dirt, and 3300 lbs of sod. both times i would use tow haul mode, and while the truck had plenty of power, it would shutter when accelerating from a stop. Mostly first gear 0-15 mph.
This is my truck with a fancy electronic controlled transmission, so on the old pickups this would be a torque converter slipping, but all the ford dealer wants to tell me is "its electrical and they want to reflash my transmission". I am at 26k miles and have less than 10k left on my warranty...
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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.....
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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?
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So I picked up a 53' for the racecar. When I'm hauling it on take off I'm getting a pretty good shutter out of the truck. My crew chief who owns a maintenance shop, said it's a known issue, and ford has been shimming the drive shafts.
I talked to the service writer at my dealership and he said it's a known issue and they are working on it. However, he said if they shim the driveshaft, there is a good chance it could fix the problem loaded, but then unloaded I'd have the problem. Is there a setup that's recommended?
I'm towing about 15k, but that's far from the limit of my 450.
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I've done the testing of hitting the brakes when the TC is locked and when it's off the shudder disappears. My question is I recently had a trans flush and both internal and external filters replaced. There was a hint of noise before then but it seems it's getting progressively worse. Could it be that they used the incorrect trans fluid? Reading through it seems as if I should follow the steps of dropping the pan and looking for signs and symptoms and then replace with the correct mercon fluid (if that's not already what's there). Then maybe some additives like shudder fix? I just want to make sure I take the correct steps to solve the problem as to not break the bank getting a new TC put in and missed something cheap and easy. Also reading it could be motor related maybe a misfire so just looking for pinpoint the problem.
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I know that average normal tranny temps for the new 6.7s are 200 degrees give or take which my truck does as well. but I'm wondering about how long is normal for the tranny temp to get up to that normal range? My truck can take anywhere from 20 minutes to almost an hour depending on if I'm on highway vs lower speed driving and it's been that way since I bought it. Am I worrying over nothing or my worries not just worries?
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I started having an oil leak under my truck in the last week or so and when I went under the rig briefly (it is raining here) it looks like it may be either coming from the oil pan itself or the seam between the tranny and engine case.
I thought I'd try the easy solution by torquing the appropriate bolts. Looking for the torque specs for these two sets of bolts or have any other suggestion where the oil could be coming from?
I have ~130K on the truck.
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2003 6.0 FX4 w/ Auto Transmission, 180,000 miles
Last transmission service - unknown (I have owed the truck for 3,000 miles). I just acquired a clunking sound when shifting from R to P or R to N. No noise from N to D or lower or back up to D. It does not grind into gear, just clunks one time. It is rather loud.
All shifting while driving is normal, no slipping, or noise. This occurs on level ground, at operating temp, and +-650 RPMs.
Fluid level is okay. No strange odor. What will be the next steps to investigate?
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