Ford 7.3L Power Stroke (1999-2003) :: 2000 - Occasional Miss At Highway Speeds / Bucking And Jerking During Even Gentle Acceleration
165k miles 4x4 6 speed, bone stock unmolested
Slowly progressing problem over 6 months. Occasional miss at highway speeds uphill has progressed to bucking and jerking during even gentle acceleration attempts.
I hadn't got my cam sensor recall done but no change after that procedure completed yesterday. Oil recently changed as well.
I have a torque pro but it never finds any fault codes even though 'service engine' light comes on sporadically. I'm not sure I'm operating it properly but it at least reads rpm when its running.
I'm contemplating the hutch mod but I'd like to have an official diagnosis beforehand if its possible in my case.
Ford F-150 (2004-2008) :: Shuddering On The Highway Under Light Load / Misfire On 7
I have a 2005 f150 4x4 with a 5.4 it was studdering on the highway under light load, i changed the plugs and coils it worked great for a day now working worse and giving a misfire #7, so i swapped the injectors around still misfire #7.
View 8 RepliesFord F-150 (2009-2014) :: 2012 - Missing / Shuddering On The Highway Between 1200 - 1700 RPMs During Slow Acceleration
I have a 2012 4x4 EB CC. In 6th gear, on the highway between 1200-1700 RPM's, during a slow acceleration, it feels like it is missing or shuddering. It is most pronounced going up a hill, and/or towing something. As soon as you get above about 1700, it goes away. Rig needs to be fully warmed up (not just the engine, but tranny/drivetrain). Needless to say, this is generally from about 52-65 mph, which is most highway (not freeway) driving I do. At times it's so bad my wife says it's time to get a Chebby.
Had it in about a year ago, couldn't duplicate it. Took it in this last week. Did the TSB on the plugs, and was told that would fix it. It didn't. Took it back in; they couldn't duplicate the issue. Rotated the tires hoping that might do something. Took the head service guy for a ride, and made it happen; it was very obvious then. It seems like the tachometer should bounce or shudder a bit when it's doing it, but nothing. It's going back in on Monday to see what they can do.
Ford F-150 (2004-2008) :: 2005 - Truck Shuttering And Bucking Along With Loss Of Power
I have had the check engine light on for a while now with the truck shuttering and bucking along with loss of power. Feels like there is something holding back the power. Just a couple days ago I was driving on the freeway and all of a sudden it felt like I was in neutral, tried to accelerate but the engine revved but wouldn't go anywhere, I clicked the overdrive on and it went into gear and I was able to drive home. Now every time I drive it, it goes a block or two in drive then again feels like neutral, put in overdrive and it goes into gear. I just put in new ignition coils.
View 9 RepliesFord 7.3L Power Stroke (1999-2003) :: F350 DRW - Chugging Bucking At Highway Speed
I have recently picked up an older F350 2WD 7.3 DRW Lariat. the price was right higher miles but hey it is a 7.3, overall in very good shape.
So the issue at hand is the truck runs great most of the time and puttering around at city speeds you would never know there is any issue;
Get the truck out on the highway set the cruse at 70 to 72 and if you hit a rise in the road or other reason to slightly accelerate the truck chugs and bucks. For lack of a better description it goes chug chug chug, if you accelerate harder to downshift it goes away or if you back off the throttle it goes away. This happens with cruse on or off, a steady foot on the pedal will cause this as well.
I have also noticed that when you let off the throttle the sound the truck makes de-fueling is just very different and "off" sounding . Not sure how to describe it but it sounds funky ... clearly not right when compared to other 7.3 or my 6.0 truck.
What I have done, :
1. Had the truck scanned with an AE and a snap-on scanner both show no codes ran injector tests no contribution errors, not even in # 8.
2. Changed fuel filter
3. Changed Oil and Filters ( tried both full synthetic Rotella and Dino oil looking for a difference )
4. Cleaned out the fuel filter housing just in case.
5. Confirmed injector O-Rings are not leaking
This feels like a fuel issue, my next thought was start looking at fuel pressure under load at speed to see if there was a drop when this is happening ?
Is there a way to test fuel pumps in this truck ? Maybe a clogged pick-up screen ? Where do I start looking next ? I have reasonable mechanical skills but don't know this motor very well, this doesn't seem like a CPS issue..
Ford F-150 (2004-2008) :: Vibration At Highway Speed From 55 To 60 Mph
Trying TSB 05-13-1 on f150 ? Mine is a 2004 xlt 4x4 and it shakes and vib really bad from 55 to 60 mph ,had tires balanced 3 different times brakes replaced and rotors turned ...
View 14 RepliesFord F-150 (2004-2008) :: Slight Shake At Highway Speed About 90 KPH
So, after putting new tires on my truck about 2 years, I noticed a slight shake when I drove at about 90kph. I let it go for quite some time thinking it was just a balance issue.
Well this weekend I spent 7 hours washing, waxing, and polishing my truck. It was worth. The rims reflect the moonlight now. It's amazing. During this washing, I scrubbed in behind the spokes of the rims. I found a big chunk of mud. Well surprise surprise, my shake at 90kph went away... or so I thought.
I no longer have the shake when driving at 90 or accelerating through 90kph like I used to. Now I have the shake when I let off the gas at 100 and drop to 80kph. It shakes at 95 through 90, and then goes away.
What is causing this? The parking brake is never used, and is showing no signs of engaging while driving. Is this a driveshaft issue?
Ford F-150 (2004-2008) :: 2006 - Vibration At Highway Speed?
Today I caught a deal on a 06 F-150 with the 5.4l. I noticed a slight vibration that comes and goes at highway speed (65-75), when I got home I jacked the front end up and checked everything out. The right front CV axle is still engaged with the tire when it is out of 4 wheel drive, I can engage the 4wd and everything locks in and works as it should. My understanding is that the axle should spin free and independent of the wheels when in 2wd? How would I go about troubleshooting this?
View 4 RepliesFord F-150 (2004-2008) :: Shudder When Taking Off From A Stop Or A Very Slow Speed?
Looking at a truck at a dealership. 04 F150 Lariat 5.4 3v? 2wd SuperCrew 148k miles. Bone stock besides the bedliner.
Truck is pretty nice besides these 4 things. Kind of a shudder when taking off from a stop or a very slow speed. Adjustable pedals don't work.
New brakes, but possibly the rears are dragging a bit. Was able to turn them in neutral and the rear on jacks. Extra, guessing because of the newer looking battery, some systems lack data from the OBD2
I'm mainly concerned about the shudder from a complete stop/1-2mph. At the dealer, to leave the lot, the driveway was elevated. I think it showed very well climbing that hill. As it was noticed and played with the gas a bit. Otherwise, you stomp the gas, it may shudder for a second or two, (3-5 times?) once it hits about 3000 rpm in 1st, its fine. Only ever seemed to do it in 1st and never any other gear, never on any gear changes.
We lifted the rear end up on a jack and fiddled around. Put it in neutral and spun the wheels, tried to mess with the drive shaft... According to dad, who was looking at it with me said it was fine and that it's normal to have a little bit of slop, but I didn't notice any real slop myself, tried to push on the driveshaft on the transmission side and I think it may have moved a bit but it didn't feel loose or clang or anything. Although I didn't get to push on it too hard because he was rotating the driveshaft at the time.
I assume new fluids in engine and trans. My dad said something about old oil marks on the transmission pan area or something. Both to the fill line.
One thing that I wonder about is how long this truck has been sitting. I wonder about the differential clutches. I'm not that sure what it really has for the rear end. But google had mention of clutch packs in the rear. I wonder if because it's been sitting that the oil has settled out of the clutches or something. There was a mess of silicon on the rear diff cap area. Couldn't tell if it was new or not. I think we put 10-20 miles on it at least and only looked under it for maybe a half hour... Still did the clunk/shudder at a start from a stop, when we returned it.
So, what could be causing this clunk/chatter when talking off from a stop/1-2mph roll?
Axle wrap?
Differential Clutches?
Differential?
Driveshaft?
Transmission?
Saab - 9-2x :: 2005 - Started Shuddering On The Highway?
I recently had the following work done or replaced on my 2005 Saab 9-2 X -
Timing belt kit and water pump replacedA/C BeltALT/P/S BeltFront Camshaft seal KitFront Camshaft seal
Everything was fine for a couple of weeks. A few days ago my car started shuddering on the highway and the check engine light came on. I was out of town at the time and took my car to a different service garage. They found that "Cylinder #3 was miss firing and had very low compression, only 20 psi" They suggested I may need to find a used motor to have installed...
I arranged to have the car transported home and dropped of at the shop that performed the original work.
Is it possible that the current problem could have been caused by the previous work being done incorrectly?Or should this possibility of this problem been noticed when the previous work had been done?
Camry 2012+ :: Occasional Blue Smoke When Moving Around 30mph And Gently Accelerate
Over the last two weeks I've had a couple instances where I'm moving around 30mph and I gently accelerate, you can tell that the engine/transmission is about to downshift and while pushing the accelerator just slightly you can feel the car shutter (not terribly noticeable) not accelerate as well as a noticeable amount of blue smoke will come out of the exhaust. It's happened twice now. After a few seconds the car will return to normal and the smoke stops.
Camry is a 2012 SE, 4cylinder, 31,000 miles. It's had the torque converter software update. No lights on the dash. I've also stopped after this happened and the engine sounded normal, oil level is normal.
Sonata NF (2006-10) :: Occasional Power Steering Loss Right After Slowing Down From Highway Speed
My 2006 Sonata V6 (88k miles) has an occasional power steering loss. It has only been noticed right after slowing down from highway speed. Total loss for a few seconds then comes back. No dash lights or noises, just cant steer - then can. Did all required maint. until 60k then just oil changes by me. Have read other forums about fluid flush, but that was for noise and I don't have any noise. This has happened with and without the Electronic Stability Control turned on. Other than that, runs great. MPG is about 25 or so (wish was 30 or so).
View 9 RepliesToyota - Corolla :: 2005 XRS - Shuddering When Accelerating At Highway Speeds
I have a 2005 Toyota Corolla XRS with a manual transmission which has developed a shudder. When this shudder started, it only occurred when accelerating at highway speeds, or maintaining highway speeds. Now it happens at lower speeds if I give it gas without downshifting, but at reasonable RPM, 3000-5000. I cannot feel the shudder in the steering wheel, but the whole car shakes, and it definitely feels like it is coming from the front end. I have had the tires balanced and rotated. I also have replaced the IACV and MAF due to a CEL. These were replaced after the shudder started. For a few days after the replacement, the CEL returned, but now I am no longer getting it.
There are no visibly obvious issues with the suspension or the drive shafts or CV joints, and the motor mounts likewise look okay. I am not getting a CEL of any kind, and I replaced my plugs 6 months ago, but I pulled them anyway, and they are not fouled. I don’t think the issue is in my suspension, steering, or wheels because I cannot feel it in the steering wheel. I don’t think my half shafts are warped because the shudder happens at varying speeds, and the instant I let off of the gas, it stops. Though this doesn’t rule them out completely, there is no clicking from the CV joints. When I brake, the car slows smoothly, so the rotors are fine. I have run injector cleaner a couple of times, and octane boost once. These both seemed to solve the issue, but did not make it stop, and it has gotten worse lately. My wife did put low-octane gas in the car once, but it was weeks ago.
Ford F-150 (2004-2008) :: 2005 - Shakes While Accelerating And Slow Down?
my 05 is giving me these mini shakes when I accelerate and slow down. I also get a little bit at highway speeds. I was walking around the truck today and I noticed that the back right tire doesn't have a weight on it. I thought this was wierd. Could a weight have fallen off thus causing the vibrations, or is this normal for one wheel to not have a weight?
View 13 RepliesLexus GX 2004-09 :: 2005 GX470 Stalls At Highway Speed But Restarts?
I have a 2005 GX470 with 96,000 miles. Yesterday, while going on a 500 mile road trip the car stalled suddenly while traveling about 75mph on the interstate. It would start surging and then just stall completely. I pulled over.. Let the car sit for a minute and then it started right back up with no trouble. It did this to me 4 times on the trip about 80-100 miles between issues. The last time it was while accelerating hard up hill. All other electrical functions.. Radio, lights, etc... continued to work fine. I don't recall the cel ever coming on and even if it did it wasn't on when it restarts. It was 100 degrees out.
I'm on vacation so wanted to get it checked put before we head home but curious on thoughts of what it might be? I was thinking clogged fuel filter or MAS but the fact that it restarts right up after stalling makes me ink it might be more of an electrical issue.
Ford 7.3L Power Stroke (1999-2003) :: Smoke For About 10 - 15 Seconds Pretty Heavily When Slow Down After Highway Speed Driving
Been barely driving my super duty due to it having a multitude of issues. So working on getting this thing back to some semblance of running decently and it has been smoking whitish blue, oil smoke out the exhaust. Not constantly, intermittently as far as I can tell.
If I drive it at highway speeds for 5-10 minutes then slow down it will smoke for about 10-15 seconds pretty heavily. Yesterday I got off the beltway after running for 15 minutes, it didn't seem to be smoking, but about 1 mile to 1 and half miles later, pulled into a convenience store and it was like I was spraying for mosquitoes for about 20 seconds then cleared up.
Truck seems to be running strong. Turbo doesn't seem to have any play side to side or in and out(according to Baltimore Performance Diesel who I don't necessarily trust at all [ I will explain my reasoning on that some other time, but let's just say, one of the reasons involves a rear main seal diagnosis... I digress] but I assume they are correct on that, I haven't looked myself. So what are some other possible answers, rings I would think would be fairly constant but I could be wrong there.
Ford F-150 (2004-2008) :: 2005 FX4 - Creaking / Scratching Noise At Low Speed
Bought a 2005 FX4 recently, 107k miles, engine and transmission working smooth and quiet. Changed oil in engine, transmission, transfer case and rear axle, filter in engine and transmission, the oil I drained still looked pretty good.
At take-off or when going slowly the truck sometimes makes a really weird creaking/scratching/rattling noise. It appears to come from underneath the truck, I only can hear it when driving close to a building or taking off besides another vehicle with windows down (noise is reflected by building or other vehicle). There is no jerk, the truck drives normal but the noise is really weird (and alarming?). Where to look?
Accent MC (2006-11) :: Bucking And Shuddering When Warmed Up
After almost an entire year of trouble-free running (with the exception of replacing a ground strap), my 2009 accent decided to start bucking and shuddering again. It only does this when warmed up, runs perfect cold. In the last 16 months, I've replaced the plugs, coils, battery, PCV valve, and ground strap. Car starts with zero hesitation.
Strong battery and starter, consistent output from alternator. After @5 miles, the car stumbles on acceleration, and idles sporadically. While looking at it tonight, I noticed a few exhaust brackets under the car had broken, and the flex section of the intermediate pipe had torn open. Could this presumed exhaust leak be causing the crap running performance?
(My "exhausted" brain thought it could cause the O2 sensor to misinform the ECM, resulting in the P0300 code I pulled...).
Ford F-150 (2004-2008) :: 2005 FX4 - Blower To Be Set At High Speed To Get Enough Air To Defrost Windshield
Whether in heat or AC mode and any dial position, I'm not getting nearly enough air blowing out of the vents to cool or heat the cabin in a timely manner. The fan switch is working in all positions but I have to use high speed all the time to get enough air to defrost the windshield. I've also noticed that when defrost is selected, air only comes out on the inside part of the vents, not the outside. Is there a cabin filter on this truck, I've checked auto parts stores and they don't list anything for it.
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