Ford 7.3L Power Stroke (1999-2003) :: Slight Vibration / Shimmy While Driving Down The Road

A little about my truck. E99 F-350 crew cab long bed dually 4x4 223K miles. 4.10 gears with LS in rear.

I bought the truck June 2016. I ended up wrecking the truck on the test drive. Thought it was a 4 way stop and pulled out in front of a lady and she ran into the passenger side tire. Only damage that was on the truck was a busted tire, and the fender smashed in. Some how missed the door and the bumper.

I replaced all the front end: u-joints, ball joints, steering linkage, brakes, rotors, calipers, and all the u-joints in both of the drive shafts, also changed the fluid in both axles.

I have started to notice a slight "vibration" "shimmy" while driving down the road. Mainly while in a curve or changing lanes; applying pressure to the steering wheel one or the other. Tires have been balanced, and rotated several different times now with no luck at all.

While backing up, I can feel something "popping" "clunking" especially while turning. Like backing out of a parking space.

Insert troubleshooting:

Jack truck up and put on jack stands.

- Pull and shake all tires. --No movement
- Put in drive and watch all the rear end. --Nothing shaking or out of sync.
- Put truck in 4wd, hard to engage, watch front end. --Nothing shaking or out of sync.
- Turn tires to full lock. --Drive line starts clanking and shaking and rear tires acting funny.
- Turn tires straight. --Problem goes away.
- Put truck back in 2wd. --No problems when turning wheel lock to lock.
- Drive to empty parking lot. --Mainly feel problem while backing up, really have to feel for it. Most people call me insane.
- Lock the front axle. --No difference.
- Put in 4wd. Drive straight --No difference.
- In 4wd while turning. --Truck wants to act like it is fully locked in the rear and will bind up and slip a tire. You really have to give it some fuel to make it even try to move, and its almost like the truck wants to fold in half on itself. Cant keep the steering wheel in one spot as it keeps "jumping" on me.
- Put in 2wd. --Acts the same way until the truck fully comes out of 4wd then smooths back out to where you have to really feel for it. 4wd light stays on forever, before going off later in life.
- Put in 4low. --Gears grind and will not engage.

Would this indicate that the transfer case is messing up on me? Why would the rear axle feel like it is locked when in 4wd?

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Ford 6.7L Power Stroke Diesel :: Shimmy In Front End When Hit A Crack / Seam In Road Pavement

So, I went in last Monday to do the first oil change thing, and visited with the service mgr. for a while about a couple of issues with my big blue dually. I reminded him about the shimmy in the front end when I hit a crack/seam in the road pavement. Or a bridge abutment.

While it's not the dreaded "death wobble', it does shimmy pretty bad at times. He said in order to claim a warranty on the alignment or tires, I had to prove I've rotated the tires as described in the "little tire book of life". Also, he says you can only make a claim up to 12K miles on alignment issues.

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Ford 6.0L Power Stroke Diesel :: Brief Loss Of Power When Accelerate While Driving - Bad Injector?

Occasionally when I'm driving, I'll accelerate and get a brief loss of power, then it'll pick back up, followed by a puff of white/blue smoke. This usually happens when the oil is over 120*, but not quite to full operating temps. It doesn't happen every time either. Only 3 times in the past week. Otherwise, there is a very faint haze of white smoke that seems to be constant. It is very difficult to see unless against a dark background. Oil level is good, I check it once a week, no rising or lowering levels.

I pulled the EGR yesterday, all good, although a tad dirty. Cleaned up no problem. Haven't had a chance to do a bubble test yet. There are some DTCs, but I can't remember off the top of my head what they were. I'm about to go clean the inside of the truck, so I will pull those and update in a few minutes.

Truck has about 148,500 miles.

Torque Pro lists these codes: C1145, P0299, P0677

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Ford 6.0L Power Stroke Diesel :: No Power - Only Accelerate At One Constant Speed While Driving?

My f350 6.0 has seem to have lost its power, while I was driving home it would only accelerate at one constant speed, and driving up hill it would not accelerate at all, I also noticed an elevated exhaust temperature.. There are no warning lights or dash lights indicating any problem.....

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Ford 6.0L Power Stroke Diesel :: 2005 F350 - Hesitates / Low Power Driving / Idle

I have a 2005 F-350 Lariat, FX4, CrewCab, with an 8ft Bed if any of that matters. Currently sitting at 191,000 miles and 4,500 Engine Hours I just started running into some issues that I cannot figure out. To start with here is a list of all the mods and prior maintenance that I've done to my truck over that last 6+ years that I've owned it.

I purchased the truck in 2010 and had no issues whatsoever for the first 3 years.....then it all started. While pulling a camper home from vacation "still bone stock" the truck overheated and by the time I realized it it was to late. I ended up blowing a head gasket cracking a head and blowing a hole in my coolant reservoir from the heat & compression of the engine in the coolant system. So to the shop it went.

All of this was done at the same time at just under 4,000 engine hours:

1) Both heads were sent out to be pressure tested "which is where the crack was found", so 1 replacement head and the other trued up and tested by the machine shop
2) All 8 injectors replaced with Airtex/Wells New/Reman
3) ARP Head Studs
4) BPD EGR Cooler
5) New Stock Coolant Reservoir
6) New Stock Oil Cooler
7) Motorcraft Coolant & Oil/Oil Filter Change
8) New Serpentine Belt

After getting the truck back I installed some upgrades that I had wanted but didn't want to do until I had head studs. 4" Turbo back Diamond Eye Performance exhaust, Bully Dog GT Tuner with an EGT Pyro, coolant changed to Caterpillar ELC, Sinister Diesel coolant filtration system, new Optima batteries "I hated them",

Forward a year with no problems I had a crank but no start. I ended up having a bad IPR. A buddy rebuilt the turbo since I had it out and it was leaking. He apparently did something wrong because it took its own life sometime after. So a brand new stock Garrett Turbo with a Wicked Wheel 2 & I changed the IPR "don't remember the brand." Also replaced the factory paper air filter with a cleanable one from AFE that fits in the factory cold air intake.

Little more time and I started to have some overheating issues again, luckily the Bully Dog was monitoring and I had alerts set up so I caught it way before it caused any serious damage. Turned out the fan clutch wasn't working. So I replaced the Water Pump with one from dieselsite.com that has a steel impeller, also replaced the computer controlled fan clutch with a 7.3L mechanical fan clutch and an adapter from BPD.

After that the batteries I hated were replaced. I installed Oddssey Extreme 950CCA ones, a new 185A alternator from FICMRepair.com as well as the complete battery wiring interconnect kit. Did the blue spring upgrade. Replaced my FICM with the BPD 6 phase at 54V setting. Also I changed my starter to an 6.4L Ultima one from O'Reily Auto to bring me up from that slow crank of the 6.0L at about 150RPM to the 225RPM of the 6.4L.

So now on to the current issue. This has happened in the last month and may be related to the issue. I had some small coolant leaks and wanted them fixed. Pressure tested the system & found the radiator and timing cover gasket leaking. I installed a new stock radiator and lower radiator hose. Had the shop do the gasket and a serpentine belt due to cleaners being all over it. During replacement of the timing cover gasket my mechanic found that the LPOP gears had some damage as if something had be in there at one time. Not sever damage just minor. LPOP replaced with brand new one from Ford.

After I got the truck back it was fine for 2 weeks, no leaks or any problems whatsoever. Then I noticed a hesitation as I was leaving work at idle. You could see the RPM's moving up and down by about 50 as it sat there at idle. It got really bad and eventually stalled on me. It fired right back up and ran fine after. I was thinking water in the fuel or just maybe old fuel because it was kinda old and I was at 1/4 of a tank. I went and filled up and it ran great all the way home. Day or so later same thing. At idle you can see the RPM fluctuating and while driving it feels like it has no power at times then it goes away and runs fine. So I changed both fuel filter with Motorcraft ones and put in a new oil filter. It is the Wix brand but I've be running it for years with no issues, one was also in it way before this issues started. The oil has about 2,000 miles on it currently. I verified fuel pressure at idle to be at 70PSI. I tried unplugging the ICP at idle with no change in the hesitation. So I plugged in my SG2 and started to see if I could see anything out of the ordinary.

OAT - 60 Degrees F
KOEO Engine Cold - FMP - 54.5V, ICV - 0.25V, ICP - 0, IPR - 14.9
KOER Engine Warm - FMP - 54.5V, ICV - 0.82V, ICP - 576, IPR - 23.5
Cruise at 40MPH - FMP - 54.5V, ICV - 1.14V, ICP - 965, IPR - 32.9
Cruise at 50MPH - FMP - 54.5V, ICV - 1.42V, ICP - 1,190, IPR - 38.0
Cruise at 60MPH - FMP - 54.5V, ICV - 1.27V, ICP - 1,143, IPR - 37.2

While driving this issue comes and goes very randomly. The only parameter I notice changing alot is the IPR. It jumps around a lot and sometimes it will go to 85. I know that this isn't a good thing so I am going to change the IPR later today or tomorrow. I already had a brand new Motorcraft one to put in, plus at the very least I want to look at the screen. I had read somewhere that there could be air in the oil system and that if you run at a high RPM it can remove this air. I never seen any bubbles or anything on the dipstick. My brother ran the truck for me at 3,000RPM for 5 minutes. No hesitation during the test but he didn't have the SG2 plugged in so I don't know the parameters during the test. I thought that it worked but then it came back after a few miles of driving. The above parameters are from this mornings drive home from work.

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Ford 6.7L Power Stroke Diesel :: No Power When Accelerate Quickly While Driving - Low Boost Until Restart

I was driving and went to accelerate quickly and had no power, checked the boost gauge and it had very low boost. Continued like this the rest of the drive, all gauges normal, no check engine light, not towing or hot. Got home then next time out it was back to normal.

Someting to be concerned about? Or just a computer hiccup. Truck is '13 with 66k.

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Ford 6.0L Power Stroke Diesel :: 2005 - Engine Lost Power When Driving Down The Road

My uncle bought an '05 that stopped running one day. He was driving down the road and engine lost power. He was able to coast into his driveway. Unfortunately, it's been 10 years since I've work on a 6.0 and no longer have any of my computers.

He did state there is no check engine light. He's going to change the filters today / tomorrow. I'm hoping to make it down there this weekend to look at it, but what to look for. Even more unfortunately, we really don't have any specialty tools or gauges.

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Ford 6.0L Power Stroke Diesel :: Loss Of Power When Driving Or Leaving From A Stopped Position

I have searched and the only thing close is bad sensor for water in fuel light but it does not say they lost power. When driving or leaving from a stopped position, if I put any extra load on engine by pressing on accelerator pedal fast the water in fuel light comes on and the glow plug light comes on and the truck loses all power. Not 12V power just engine power. I have to let off the pedal and the lights go out and I have power again. Until I press the pedal hard again and it does it again. I have drained the filters and replaced them and still the same.

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Ford 6.0L Power Stroke Diesel :: 2007 - Power Loss When Driving - White Smoke Blowing

I have an 07 6.0 with 400,000 miles. Has been a great truck with no major problems. Before I started the work I had 3 bad injectors, running rough and the oil/ coolant temp just outside of 15 degrees. So I tour her down and replaced head gaskets, installed arp studs,all new injectors,all new glow plugs and new oil cooler. Ran great for a couple days. Then when driving to work lost power on and off for a few miles then completely gone could only go 10 miles an hour. I checked codes and there was the under boost code witch has been on there for a while and I forget the other code but it was for the ipr valve so I replaced the valve and right after still the same but that code went away and the p0470 popped up. So I cleaned out the ep sensor tube and replaced the valve. After several miles she now runs great but now I'm getting a little puff of white smoke when I take off and not every time and mainly when I take off some what quick. All codes are gone expect the under boost. I have an egr delete already.

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Ford 6.0L Power Stroke Diesel :: Lost Power When Driving Down The Highway - EGR Codes P0404 And P1335

So I was driving down highway when I lost power. Engine was still running just had no power and would blow black smoke when I got on the accelerator. I pulled the EGR valve and noticed it had rocks stuck keeping the valve open. Cleaned it all up and put it back in. Went for test drive and seemed good again until few miles in same problem. Took it apart again and same thing.. rocks. I did this 3 times with same results...rocks getting stuck in my valve.

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Ford 6.0L Power Stroke Diesel :: No Power When Accelerate While Driving

So I have a no start on my 6.0. I was driving and went to accelerate and had no power, pulled off of the road and was idling rough, I checked for fuel leaks-none. I put it in drive and engine cut off and wouldn't start again, changed the ICP (threw a code) still nothing, FICM is good, ICP is 950 psi at cranking, IPR is only at 54%. I'm at a loss of what to do next besides looking at the IPR, and I do not have the equipment for a leak test.

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Ford 6.0L Power Stroke Diesel :: Stalls While Driving

Driving down the road at 55, the truck just stalled out and won't restart. This has happened before but it always started back up right away. Put a scan tool on it last week and it's giving me an injector 1 low pressure, and egr.

I've read that running the truck at low voltage could fry the FICM and cause all sorts or problems. I just replaced the alternator this week because the batteries always drained while the truck was sitting.

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Ford 6.0L Power Stroke Diesel :: MAP - Fluctuates From 15.0 To 25.0 Or So When Driving Normally

What is MAP and what should it be? Mine is 15.0 KOEO and fluctuates from there to 25.0 or so when driving normally.

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Ford 6.0L Power Stroke Diesel :: Shut Down While Driving

Just to give you a run down on my truck. It's a 06 F-350 4x4 supercrew 6.0 with 78,994 miles. The trucks has been studded with Apr and aftermarket head gasket, Powermax turbo with a wicked wheel, RCD EGR delete kit, 5" turbo back MBRP exhaust, Driven Deisel regulated fuel return system, high REV valve spring kit, EBT sensor, 58volt swamps diesel FICM, edge evolution, within the last 4000 miles New oil cooler, crank sensor, cam sensor, IPR valve, ICP, batteries and lift pump. I think I'm missing a couple things but that's the layout.

Now for my problems recently took the truck to Florida from Illinois towing a 8500# boat. Before I left I had the oil cooler changed, Rotella T6 5w40 ,New filters And 2 bottles of REVX. The try k didn't miss a beat on the 1300 miles trek down. It sat for 3 days before coming back up lite truck. I was gonna drive straight thru and with 1100 miles down and 200 to go the truck acted like it was running out of fuel and died at 90mph. Fuel Gage read 1/2 tank to go.

After letting it site a 1/2 hr it finally fired back up and drove 5 miles before doing it again. This went on 3 more times. I even limped it to fill up the tank thinking the gauge was bad. Nope did it again And called for a tow truck. This was in mid october and 20 miles ago. Since then I've replaced fuel filters, lift pump, IPR, ICP, cam and crank sensors, sent the FICM in to have tested, replaced batteries. No the problem is worse. It Now has created a serious miss when it's cold till 90 then it Idles smooth but keeps dying on me like it did when it was towed.

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Ford 6.0L Power Stroke Diesel :: Vibration While Driving

172k on the girl now. Getting a little vibration while driving yesterday. Looks like it's time for new U-joints, carrier bearing pinion seal. Thinking of going grease less again since these lasted 172k. What brand should I go with? Or should I install ones that are grease able?

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Ford 6.0L Power Stroke Diesel :: Battery Light On While Driving

I charged the batteries fully, new alternator put in and checked grounds. Light was off, but while driving to work it came back on again and stays on. Battery voltage is 14.2 on each at idle and 13.4 while engine and key off. Maybe the two prong connector needs to be replaced?

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Ford 6.0L Power Stroke Diesel :: Shut Off While Driving Down The Highway

So today I was driving down the highway and my engine shut off. No sputter or any thing I had just filled the tank. I tried to start it and it wouldn't start. It's been hitting a dead spot at around 3000 rpm like its not getting enough fuel or something. Right now I'm thinking it's an ipr valve but would like to know if what was the cause and how did you fix it...

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Ford 6.0L Power Stroke Diesel :: Stall Out While Driving For 2 - 3 Hours

I got a 6.0 in 2006 tow truck happens to be after using the truck for 2 to 3 hours the truck stalls out while driving can seem to figure this problem out , I change

ICP
FUEL PUMP
FUEL FILTERS
INJECTORS 1-3-5-7

Can't seem to figure it out...

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Ford 6.7L Power Stroke Diesel :: WIF Warning While Driving In Water

Today I was on the beach and I had to drive through some standing water about 4 inches deep. I went through without a problem and noticed my WIC light came on. I unplugged the sensor, drained the filter(which had no water) and drove home. On the way home the light went off, I didn't experience any limp mode, etc...

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