Ford Super Duty (1999-2016) :: 2004 F250 - Runs Rough At 1500 RPM

So, my truck runs really rough when I am @1500 RPM and lightly feather the gas. I have replaced all coils and plugs. Used dielectric grease. Replaced air filter, replaced ICU, changed transmission fluid. The thing still "shudders" ... 2004 f250 5.4 ....

View 14 Replies

Ford Super Duty (1999-2016) :: Truck Shaking When Accelerating / Idling And Driving At 1500 RPMs

I got a 2000 f250, 5.4l, I got a check engine light bout 2 weeks ago and didn't experience any driving issues. The code was p0171, just recently I've been experience troubles idling, if I let my truck idle for about 3 minutes it will want to shut off, also on acceleration the hole truck bumps, feels like I'm in an earthquake. Where I should start with this problem?

View 11 Replies

Ford Super Duty (1999-2016) :: 2004 F250 Vibrate Up And Down At 45 Mph Speed

I have 2004 F250 6.0 diesel. I added 35s with diamo rims and I installed a front end lift which added a small leaf springs to the factory leaf spring to raise the front end 2 inches . The truck drives fine no problems at high speeds and low speeds except for right at 45 mph. At that speed the whole truck vibrates up and down . If I accelerate the vibration goes away. Discount tire rotated balanced etc and even replace a rim and nothing has changed. I did put the factory wheels and tires back on and the vibration went away. Put the big tires and rims back on and vibration is there at 45 mph. How to troubleshoot this ? I have 90,000 miles on her.

View 3 Replies

Ford Super Duty (1999-2016) :: F250 V10 Misfire - Shaking At 80 KMH

I have a 1999 f250 v10 auto. It has 3 miss fires thats im stumped with .. Ive replaced all spark plugs, all coils , I've had injectors out and were cleaned and it still miss fires. I can disconnect the coil and injector on the cylinders and the motor runs the same. Ive swapped the coils and injectors around to make sure it wasn't them. What else could it be? Frustrated I've had the truck for 2 years and haven't figured them out. Ive had them go away for at most a day. Also the truck has a shake at 80 kmh not sure if its from the miss...

View 13 Replies

Ford Super Duty (1999-2016) :: 2008 F250 Truck Shaking Violently At Over 45

2008 f250 standard cab long bed 2wd base model 5.4. This thing has been great for the last few years i i owned it but it developed a shake since i got new tires. My mechanic mounted 4 new Hercules Terra trac at 2's on my 18 inch wheels (275 70 18) and when i got the truck back it was shaking violently at anything over 45. Mechanic says the new tires are heavy and its affecting other things...sounds plausible. So here i am a month later with a New steering stabilizer, all new ball joints, new shocks, new u joints, and 1 new tire (he said 1 of the brand new Hercules had a broken chord). The shake is 80% gone but this truck is still not the same. Anything after 65mph and it has a feint wobbly bouncy shake. I don't think its the dreaded hop that everyone gets on these. I have 2 theories:

1. These cheap tires just suck and will never be right
2. The cheap junk Monroe shocks he put on are way too soft to do anything

so what do i do? Should i get some crazy shocks or will that make this truck even bouncier? Im worried about making it even stiffer than it already is.

View 12 Replies

Ford Super Duty (1999-2016) :: 2002 F250 - Violent Shaking When Reach 35 Mph And Above

I have a 2002 F250 with the 5.4 triton engine. Automatic transmission. When I reach 35 mph (sometimes sooner) the truck will shake horribly when I reach lower rpms. It will do this up to 65 mph and then it mostly stops. Completely taking my foot off the gas will stop the shaking, as well as shifting into neutral.

I know for sure that the truck has a cylinder 3 misfire as well as a minor exhaust leak, could either of these be causing it? Don't have the money to fix either of the problems for another couple weeks, is it safe to drive until then or should I play it safe?

View 2 Replies

Ford Super Duty (1999-2016) :: 2008 F250 - Truck Will Not Stop Shaking When Driving

I have a 2008 F250 crew cab lariat 4x4 with 20 inch factory wheels that the steering wheel shakes during normal driving left to right. I bought this truck with 1500 miles on it. This shaking started at 50k miles and I was thinking it was a balance issue so I got new tires a month later since mine were about worn out anyways. They were factory replacement nitto terragrapplers. Shake was still there, swapped out for another set of nittos and shake still there, swapped to BFG AT KO's and shake better, but still there. I have gone through 10 or so balances, 5 roadforce balances, 2 alignments at 4 different shops including the ford dealer through the 3 sets. My wheels are scratched to hell and back from the careless people at the tire stores from so many balances.

My truck sat at the Ford dealer for a week just the other day and they changed the steering stabilizer. I thought it was gone, but a a few days later shaking started again. It almost feels as if every little bump, rut, crack in the road the steering wheel feels and shimmies (doesn't matter the speed, gets worse and more noticeable at higher speeds). The Ford Dealer says can't duplicate, but then when I go down there and test drive with them it's "oh yeah I see that, it shouldn't be doing that". The Ford Dealer says they can't find anything loose in the front end when I tell them to check tie rods, bearings, etc.

My truck has 62k miles on it now and it's driving me to the point of thinking about trading it on a Chevy. I love my truck, but it kills me everytime I make a payment and it rides like crap. I am still under extended warranty so I need to get this fixed before it goes out. I've also noticed that if I turn my steering wheel back and forth real quick while driving like warming up for a Nascar race I can feel a bumble in the steering wheel. This is NOT the death wobble as I use to get that around the 20k mile range and it disappeared and has never been back.

View 14 Replies

Ford Super Duty (1999-2016) :: 2011 F250 Truck Shaking Badly When Put It In Reverse

Well I just bought a 2011F250 6.7 on Friday. The truck has 42000 miles when I picked it up and now has almost 42800 4 days later. I love the truck so far. But anyways its an early build so is there anything I need to look out for? I noticed today I pulled into a parking spot and went to back up and as soon as I put it in reverse the truck shook pretty bad. It did it a few times as I sat there and went from drive to reverse. Is this something that is normal?

View 9 Replies

Ford Super Duty (1999-2016) :: 2000 F250 - Whole Truck Starts Shaking / RPMs Will Drop Down

I'll try not to post an entire book.. But I bought a 2000 F250 not even 8 months ago, it did have issues before but I changed out the spark plugs and coils and it fixed it's original missing issues.. I also just recently changed the fuel filter but it didn't fix it's new problem.. It drives ok around town but if I get over 35 mph it doesn't run well... If I try to keep a steady foot on the gas but don't get the RPMs over 2000, the RPMs will stay where they're at for just a second then they will drop down and the whole truck starts shaking.. I push more on the gas and it shakes even more and the RPMs don't move at all until I really step on it.. It lacks in power going up hills as well... The dealership i bought it from said the Catalytic Converter was bad but my uncle who is a mechanic says it isn't.. It's the first vehicle I've bought so kinda wanna make it last..

View 11 Replies

Ford Super Duty (1999-2016) :: 2002 F250 4X4 - Front End Shaking And Brakes Began To Intermittently Hum When Stopping

Problem started with the front end shaking a little bit when braking like the rotors needed turning. Then the brakes began to intermittently hum when stopping. Then my ABS light came on. Put the truck up on the stands and disassembled the brakes on both sides. The ABS sensor was chewed up on the driver side. The less than year old hub felt sloppy so I changed it. Put everything back together.

New hub came with new ABS sensor. Went for a test drive ABS light is gone and I no longer shake or experience the hum when applying the brakes. However now when I go to stop right before I come to a complete stop the driver side (new hub/spindle side) I hear what sounds like the grade school class clown making a fart sound with his mouth, and the truck pulls to the driver side. Is the ABS system malfunctioning or is this a caliper issue? Calipers look like they are OEM.

View 3 Replies

Ford Super Duty (1999-2016) :: F250 V10 Shuddering At Constant Speed

I was running my 99 F250 SD with the V10 around the DFW area pulling a car hauler with a Jeep on it. The last 50 or so miles on the way home she started shuddering at a constant speed unless I turned off the overdrive or I was accelerating or slowing down.

She's never given me any issues but this is bothering me. 4x4...

View 10 Replies

Ford Super Duty (1999-2016) :: F250 - Vibration Above 70 MPH - Speed Related

I have a 1999 F250 super duty with a mean vibration at 70+ mph. It is a 5.4L manual trans manual 4x4 extended cab short box with around 250k miles on the body and 50k on the motor. It is a one piece drive shaft with the double knuckle at the t- case. it has had a vibration in the drive line since i bought i about a year ago. there is almost zero vibration at 60 mph but at around 70 the vibration starts to get really bad. The vibration is speed related because when i push in the clutch or pull it out of gear the vibration is still there. i seems to vibrate more when winding out in 3rd and 4th gear but that may just be because off the exhaust resonating or something. I have already done u-joints, balanced the drive shaft, put brand new tires on mounted and balanced, replace transfer case output bearing and both front hub assemblies. the vibration feels like it is coming from the trans or transfer case. every thing i tried made very little impact on the vibration. I'm a loss and i don't know what else to try. i know the throw out bearing an pilot bushing are bad and the clutch is well worn so ill be replacing that soon but i don't believe that is causing the vibration.

View 7 Replies

Ford Super Duty (1999-2016) :: F250 5.4L - Engine Idle Rough - Missing / Shaking When Giving Slight Acceleration

I have a 1999 F250 Super Duty 5.4L, 118,000miles...engine seems to idle somewhat rough but tach doesn't seem to move off 1000rpm & when giving slight acceleration seems to act like its missing, shaking . But under acceleration moderate or high purrs like a kitten! Always starts good , few cranks. Any hints on the what issue might be?

View 2 Replies

Ford Super Duty (1999-2016) :: 2004 F350 V8 Shaking When Get Between 45 And 55 MPH

My 2004 F350 6.0L v8 has a weird shake when I get between 45 and 55 mph. Doesn't feel like its the tires, feel like the engine. I think I might have the #5 glo plug out. Is that it or could something else be wrong? If it is this how bad is it to drive on.

View 4 Replies

Ford Super Duty (1999-2016) :: F250 - Driveline Vibration That Is Speed Dependent

I have a 1999 f250 SuperDuty with a nasty vibration That begins at about 70mph. The truck is an extended cab 5.4l Manual trans 4X4 with a one piece driveshaft (No mid bearing). The Vibration appears to me to be a driveline vibration that is speed dependent. It is the same in gear, out of gear clutch in or out. I have replaced the wheel bearings/hub assemblies on all four corners, completely rebuilt and balanced the driveshaft the driveshaft, removed the front driveshaft, put brand new tires mounted and balanced on all four corners, new clutch, had the flywheel turned and balanced, and replaced the transfer case output bearings. Pinion bearing feels tight and does not leak.

Also the Input in the trans felt tight when i had the trans out. The truck had the vibration when i bought the truck and still vibrates after i have done all of this work. i did not change the motor mounts because they looked fine. when i bought the truck the tabs on the extension housing holding the trans-mount to the trans were broken so i make a huge "exhaust clamp" to straddle the trans and bolt to the trans mount.

After driving the truck up north last weekend the truck seems to shake going taking of at lower rpm as if the motor mounts and trans mounts are bad. I guess my questions is can a bad trans mount, motor mounts cause this Vibration at highway speed. if so is there a way to fasten the trans-mount to the extension housing without replacing the extension housing. If not what else can cause this issue?

View 7 Replies

Ford Super Duty (1999-2016) :: 2007 F250 - Misfire At Highway Speed

Have a 2007 F250 6.0 diesel with the standard issues including misfire at highway speed. Assume the bulletproof kit also cures the stiction problem? in reviewing the threads and looking at the vendors, references are made to fixing the oil cooler issue, egr issue, etc., but no one addresses stiction issue directly.

View 10 Replies

Ford Super Duty (1999-2016) :: F250 - Strange Sound While Turning At Speed?

I have a '16 F250 4wd with the 6.7 and approx 3k miles. There has been a strange sound coming from the front end when turning left from a stoplight. It sounds like something slides or shifts and it only happens once in a while. The noise isn't loud but you can feel it.

View 2 Replies

Ford Super Duty (1999-2016) :: 2002 F250 - Cruise Control Turn On But Sometimes Set Speed

Truck is an 02 F250 Automatic 4X4, 7.3 PSD.

Cruise control will turn on, will sometimes set speed and sometimes will not. If it does set and work it may kick off at any second or it may run fine. I have noticed it seems to kick off mainly after going over a slight bump in the highway or it may just kick off for the hell of it. Truck has 50,000 miles on it, I bought it new. Also having trouble with the throttle position sensor, it seems to have a "dead spot" at about 58 mph that shows up when I romp down on the pedal to pass on 2 lane roads. Can these two symptoms be related? Both are very aggravating. FWIW it does have the power adjust pedals. Truck is 100% stock, no power chips or other upgrades.

View 7 Replies

Ford Super Duty (1999-2016) :: 2007 F250 - 2nd Speed For Blower Motor Don't Work

I have and 07 F250 and the #2 speed for the blower motor don't work (hasn't since I bought it) I read that the most common cause of this is the resistor under the hood on the firewall so I replaced that and still no 2nd speed??? Where I look next? Motor itself maybe?

View 11 Replies