Ford Super Duty (1999-2016) :: CEL Sporadic Only When Cold - Code Read P0355?

Here is my situation. A month or so ago when it got cold out consistently I got a rough idle after start up.. CEL. Code read P0355, cylinder 5 misfire. Removed plug to check it. All was good, I put everything back together (anti seize, dielectric greased) So I replaced coil. It went away. This week got very cold and Code P0355 and flashing CEL. Drove for a mile or so and it went away. So I'm thinking vacuum leak, Intake gasket, egr valve or warped intake manifold?

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Ford Super Duty (1999-2016) :: Truck Will Not Start When Cold - Code P1378

05 6.0 72,XXX miles. Will not start when cold (below 40ish) outside and engine is cold. Throws a P1378 code and no others (per the BullyDog Gauge Tuner that came with the truck). Checked the FICM with the voltmeter test on a morning it wouldn't start. Never dropped below 48 volts through the whole test. I can clear the code, try and start the truck and it comes back as soon as I try to crank it again. Warm days=no problems at all.

Oh yeah...I did go through the harness from the FICM to the injectors a while back and found a couple spots that were rubbing on various bolts. Peeled the insulation back and taped up the bad spots to keep from grounding something out so I don't think it's a harness issue. Also found a ground wire off on the back side of the FICM and reconnected that on the nearest valve cover bolt.

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Ford Super Duty (1999-2016) :: 2006 F250 Running Rough / No Power On Acceleration / Code PO420?

CEL came on last night, OBD code PO420, truck is an 06 f250,5.4? Btw, truck running rough, no power on acceleration, in gear at idle, runs rough....

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Ford Super Duty (1999-2016) :: 2008 F250 Has Been Slow Going Uphill

Last few months my 08 F250 has been slow going up hills. The fluid checks out ok and it shifts fine.

It just seems to take forever to get up hills. Has 124K....

Also has a huge hissing noise thats RPM dependent on the passenger side. Will make the sound in neutral just revving.

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Ford Super Duty (1999-2016) :: F450 Revs Up But Drives Very Slow

I have a 1999 F450 Diesel dump truck. Automatic. The problem that I have is that the truck will drive VERY SLOWLY while the rps go up.

You can hear the engine revving up, and a strong air sound when doing so (do not know if intake or exhaust, but its like a strong wind sound. And not like a hiss, so I do not think its a vacuum leak).

The transmission goes through gears fine, but it does the rev up thing through every gear. So I am wondering if something like the torque converter might be broken or slipping.

For example, if you go with the loaded truck up a hill, you have to really push it to keep any type of speed. Or when you get off a red light.

When I bought it used, I thought that it might have a really short final gear. But that would not explain the high RPM and no push.....

No codes at all.

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Ford Super Duty (1999-2016) :: 2008 F350 - Slow Cranking When Hot

I have an 08 f350 lariat with the 6.8 with 66000 miles. A month ago took it to the dealer with a plugged catilityc converter. All covered under warranty. Got the truck back, starts great when cold including 18 degrees the other morning. I drive 7 miles to work, shut it off and restart, it acts as if the starter is struggling to turn the engine over. Once it cools off, starts fine again. I took it back to dealer, they replaced the starter. No change. Took it back again, they replace battery. Cranks a little faster, but you can tell it's still struggling. It always starts, I'm just wondering how it will be when it's 80 out and in pulling my 9000lb camper....

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Ford Super Duty (1999-2016) :: Rear End Wobble At 40 - 50 MPH Until Speed Up Or Slow Down?

Ive had this 2009 F250 4x4 Super Crew, 6.4 for 2 years now. Bought it the way it sits with a 6" ProComp lift and 37" Yokohama Open Countrys. Recently, once I get up to 40-45 mph, the rear end starts vibrating violently until I speed up or slow down. There isn't any clanking noise and it's silent. I look in the mirrors to see if it's the tires but they appear to be rotating smoothly. It's never done this before. It's like a tire is out of balance but it shakes much harder than that should be at that speed. It rides smooth as can be at any other speed all the way up to 80 mph which is the faster than i drive. What this could be? I've done searches but can only find info on the front end death wobble which is not the case here.

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Ford Super Duty (1999-2016) :: Slow Oil Leak - Staining Underneath

My 6.0 has been leaking oil for a couple weeks now possibly longer judging by the staining underneath. Very slow leak. 1 drop hits the ground when I get off work and go to get in the next morning. It never really reads off the dipstick a drop in the level. But I want to get it fixed. Ive attached pictures of where its coming from and was hoping to get pointed in the right direction.

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Ford Super Duty (1999-2016) :: A/C Does Not Cool At Slow Speed And Low RPMs

2006 F250 6.0L CC Lariat with Climate Control

- 1st Start in morning, AC Blows cold.
- Run it down the Interstate AC Blows cold.
- Get back into traffic, slow speed, low RPM, AC doesn't cool.

Is this likely the clutch going South or low Freon perhaps? At higher RPMs, 1000+ seems to work good. At idle, when hot, not so much. Just looking for possibilities.

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Ford Super Duty (1999-2016) :: 1997 F250 - Cold Engine - Heater Would Blow Either Cold Or Slightly Warm

I can't seem to get the engine temp to middle range on the marker, but yet my heater blows "to me" hot air. Even while sitting in idle for extended amounts of time I cannot get it to "operating" temperature. I would think if my thermostat was stuck open my heater would blow either cold or slightly warm air. I have the 5.4L engine with knn air filter and no cats.

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Ford Super Duty (1999-2016) :: Slow Fuel Fill Or Gas Nozzle Keeps Shutting Off

I notice the gas nozzle clicks off all the time when I am filling my truck. Normally I just hold the nozzle up more and it seems to work.

F250. Slow fuel fill or fill nozzle keeps shutting off....

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Ford Super Duty (1999-2016) :: Starter Bogging Down Batteries / Slow Crank

Got 01 F350, 7.3

Started having issues with starter bogging down my batteries. Slow crank, it would catch anyway and runs great. I have spare used starter in the garage, threw that on and it cranks fast, but occasionally just free spins half way thru the cranking.

My question is, can I make one good starter from these two? Monday AM buyer is coming to get my truck, and I don't want to have to buy brand new starter if I can avoid it, but I want him to have reliable used starter.

What causes free spinning (not flex plate related), and what causes power drag and slow crank? I was thinking throw solenoid from fast starter onto slow one, since slow one doesn't spin out but it bogs down my voltage?

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Ford Super Duty (1999-2016) :: 6.0L Engine Shuts Off While Driving At Slow Speeds

I have a 2006 F350 6.0L Diesel with about 72,000 miles on it. It has been the best truck ever, but just about two weeks ago it started doing something real strange. While driving, and it seems to only be at slow speeds, (idle or just accelerating), the truck will shut off the engine. And it is always in this order, it will first "pop" all the speakers real loud, then the radio will reset, (go to the AM radio and shuffle through my 6 disc changer) and then the engine will shut off.

Once I bring the truck to a stop and put it into park, it will then start back up with no problems at all. There is nothing I can seem to piece together as to when it will do it other then it seems to only be at slow speeds... Besides that, it is completely random. One day it did it four times, and then it didn't do it for the next few days at all... The only thing that has changed over last 2 weeks is that, the last few times that it has done it, it didn't kill the engine, it still popped the speakers like normal and then reset the radio, but didn't shut off the engine.

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Ford Super Duty (1999-2016) :: Slow Drip Coming Off The Plastic Oil Plug

2011 250 CC FX4 LARIAT 6.7l Just had the oil changed on Friday and I noticed a couple oily spots in the driveway. Crawled under to investigate and there is a slow drip coming off the plastic oil plug. Called the service center and they said the seals on those plugs fail pretty regular. What was done to eliminate this issue?

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Ford Super Duty (1999-2016) :: Fuel Gauge Slow To Respond After Fill Up

Yesterday went to fill up ($4.05 a gallon geezz!) and noticed that after getting back into the cab, the fuel gauge still showed almost empty. So after yelling a few expletives, I looked again and noticed the gauge starting to make it's way up the dial. It took almost 30 min. before it showed almost full. I'm not sure what the problem is, as the gauge seems to still function. I don't drive the truck much as I use it as a tow vehicle. However, I do try and take it for a spin about 3-4 times a month just to exercise it. I was wondering if the fuel has started to gel and that is the reason for the slow fuel gauge response. Should I add a fuel conditioner/cleaner now that I have a full tank?

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Ford Super Duty (1999-2016) :: F350 - Death Wobble At Slow Speeds

1999 F-350 7.3 Dually 2wd Front End issues. I think I may have several things going on so here goes. Truck has about 130,000 miles on it . Bought it with 60,000 miles in 2009.

It's always worn the front tires weird but it's gotten a lot worse and it's happening in about 10-15 thousand miles now. It's wearing the tires on both sidewalls like under-inflation but I run 70 lbs in them. I've noticed for several years now that it makes a knocking sound and I feel it in the floorboard, shakes in the steering wheel when I turn to the left only in a corner at speed. (65-70) ...

Now it's started intermittently going into the death wobble at slow speeds like the caster is to negative on it. I'm sure it could use some shocks but I just rotated the tires and I felt no play anywhere. I know when we used to get that bumping in the floor board on older Fords it was a bad radius arm bushing but that couldn't be all of what's going on here. I've done searches on this and it has happened to others but I haven't found a resolution from any yet.

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Ford Super Duty (1999-2016) :: 1997 - Gets Hot Under Acceleration?

Okay here we go. 97 F250 HD with 460 and e4od.160,000 miles, MSD 8.5 Super Conductors, Mallory 6A, KNN air filter, Transmission Flushed new filter including inline and Mercon V. New Hedman Headers and Y-pipe into Cat delete stock exhaust. New front fuel pump and filter. New 38 gallon conversion rear tank and fuel pump. Air pump delete. New IAC valve. Timing set to stock. oil just changed Valvoline high mileage full synthetic, KNN oil filter , Lucas Full Synthetic oil Stabilizer, Injectors cleaned on truck with Berrymans, Entire cooling system has been thoroughly flushed. New 4 core radiator and 180 degree high-flow thermostat, new belts, new water pump, new hoses, new 13lb rad cap.

So here's the problem. It gets hot under acceleration. If I do a 0 - 80 mile per hour run the temperature gauge will go from a steady "O" reading to the high side of "R" (of course I am referring to the word displayed "NORMAL").. if I am Towing 0 - 65 mile per hour run will put the Gage to a solid "A" Reading then drop quickly once the throttle is lifted. It can idle all day long with the AC on and it will not come above the"O". I would normally think that this has caused buy a stuck thermostat however the thermostat is new and a stuck thermostat while running easy, would most likely cause the lowest temperature to be around the letter "N" on the gauge. I have no condensation coming out of the exhaust whatsoever except what is normally associated with first start up on a full exhaust system. I have no additional pressure or bubbling in the radiator. I have no foreign fluid in the radiator either from oil or transmission fluid being introduced. And I have no coolant contaminants in the oil at all which would normally indicate a head gasket or intake issues. This is definitely a concern because Towing an RV in hilly conditions will allow the gauge to climb rapidly. The bigger the hill the longer and harder the acceleration the higher the temperature will climb. I am stumped.

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Ford Super Duty (1999-2016) :: 2008 5.4L - When Slow Down To Idle Engine Starts To Diesel

I've got a 2008 5.4L I just bought. The previous owner just ran around the city and never pulled anything with it. After the truck has been pulling and the engine is hot, when I slow down to an idle the engine starts to diesel. This lasts for a few seconds then goes back to normal. Is this just because the engine isn't used to working and the computer hasn't adjusted yet? is this something that could be serious and I should have checked out by a garage?

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Ford Super Duty (1999-2016) :: Slow Cranking - Bad FICM Can Cause Intermittent Battery Light?

2006 F250, 6.0, AT, 59K. Week and a half ago, started cranking slow. I charged the batteries and checked with a professional load tester. Both batteries good, but voltage was fluctuating and tester said charging system needs service (no battery light). I swapped in a remand alternator as a new was not available that day. It lasted 6 days and this time the battery light was intermittent.

I checked voltage and again it was fluctuating. I swapped in another remand unit and 3 days later, same thing, intermittent battery light and fluctuating voltage. I'm installing a new, not remand unit tomorrow. However, could a bad FICM cause this problem? I noticed that the engine seems louder (not the exhaust note) at idle. This truck is clean and I have no corrosion issues. What is the right direction to test the FICM?

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