Ford F-150 (2004-2008) :: Truck Would Bump When Climbing A Hill While Under Load

2006 fx4 f150 5.4 flex 52,000 miles ... Just got home from a 800 mile round trip vacation, seems I've developed a miss or a tranny problem. The truck runs/idles fine, shifts fine, everything is as normal. Except maybe 12 times while under a load, like climbing a hill, the truck would "bump" that's the only way I can describe it. I only noticed it in Drive/Overdrive. I hoped I had water in the gas so I added gas treatment at 2 fill ups, still seems to do it occasionally. Where to start? I'm going to get a fuel filter today, the one that's on it only has about 12k on it....

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Ford F-150 (2004-2008) :: 2005 - Slip Or Grinding Noise When Go Up A Hill And It Downshifts Into 3rd Gear

Ok I have been trying to find out what is going on with my truck and I cant seem to find anything on here that points to all the symptoms I am having. I have a 05 xlt 4x4 with 5.4. For the last 5 months or so I have been noticing a slip or grinding noise when I go up a hill and it downshifts into I believe 3rd gear. It sounds like going over rumble strips on the road but only lasts a second. It also does it sometimes when I pull out from a stop.Also when I let off gas or brake to a stop it seems to shudder a bit.

Maybe its my imagination since I keep hearing for the grinding sound, I don't know anymore.Its driving me nuts(er). It doesn't do it all the time either.It has only 65,000 miles on it and never towed. I know I am due for a total tranny flush since it never had one. Could this be the whole problem? Iv been reading other stories that sound close to mine but they never mentioned about the noise when pulling out. Could it be the rear end? I am totally lost on this one.Other then that problem it runs great. Shifts nice.

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Ford F-150 (2004-2008) :: Rattle Noise Intermittently?

I get this weird rattle noise comes and goes once in a while notice it on highway mostly? I don't think it's a loose heat shield?

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Ford Excursion :: Turbo Surge - Cannot Maintain 70 Mph With Small Load Up A Mild Hill

I have a 2002 EX 7.3 and have never towed anything with it since purchased a year ago. This weekend I towed a side by side on a single axle trailer about 400 miles and could not maintain 70 mph with the small load up a mild hill. Also I could here the turbo surging while climbing hills. I have a AFE cold air intake and that is it. Truck had a aftermarket muffler on it when I bought it. New to the diesels but I thought it should tow that Trailer a little easier. I have no boost gauge or anything. Truck runs great other then this issue. Does not burn oil, get hot or anything out of the ordinary.

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Ford F-150 (2004-2008) :: Tranny Slipping When Pulled Away Up The Hill

Let me first say that my knowledge about vehicles is nearly non existent. Yesterday I was stopped at a light on a hill. When I pulled away up the hill it felt like the tranny was slipping real bad. I coasted into a gas station and stopped. I gave it the once over look around to see if I could see anything unusual. All looked ok, so I wondered if maybe it wasn't all the way into gear or something.

I limped it home only 2 miles and it was seemingly normal although I was real gentle and it was all flat or downhill. Later that night I drove it around the block and it was shuddering and banging and seemed to be slipping again. My question is doesn't the transmission usually go over time, or does it fail suddenly like this. Could it be something else? And lastly what does a rebuild cost. Truck is 06 FX4 54000 miles 3.73 gears. Edge Evolution on level 2.

I tow a Trailer a few times a year 7000 lbs fully loaded, if I do need a new tranny should I replace to a different gear.

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Sonata NF (2006-10) :: 2.4L Engine Rattle Noise At High Load / RPM

I have a '07 Sonata GLS with the 2.4-liter Theta engine and the 4-speed automatic. It has 52k miles on it and has always been serviced regularly. It's been a pretty decent car but is starting to feel a little tired, most notably the worn/bouncy suspension.

Anyway, the other day I was driving down the highway and gave it a little gas to pass a slower car. Doing 60 MPH it downshifted to 3rd (~2000 to ~3300 RPM) and I thought I heard a noise in the engine bay, but I wasn't sure. I ended up needing more power so put it to the floor and as it kicked down to 2nd at ~5000 RPM the rattly noise got a lot more pronounced. Driving around normally I don't hear it but any time I put it to the floor (merging/passing) I will hear the rattle. I can also hear it if I lock it in 2nd gear and give it full throttle up a hill at low speed, like you might do with a stick shift.

It seems like it only does it under load because if I rev it to ~4000 RPM in park in the driveway, there's no noise, even at full throttle. I know the V6s had tensioner issues but I haven't heard much about the 2.4s. I'm not super concerned as it is still under warranty but what might be wrong with it as this is my first Hyundai vehicle, especially in case the dealer can't replicate it.

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Ford Super Duty (1999-2016) :: Vibration Mostly Noticeable While Under A Load Like Climbing A Hill

My current 08 duty was bought with what I believe to be a procomp 6" lift modified to an 8" lift. The 100 mile drive home after buying the truck showed a tiny "hop" in the rear. I ditched the 37s for some new 35s. Still a tiny hop, mostly noticeable while under a load like climbing a hill. I pulled the rear driveshaft and had it fully rebuilt with a new carrier bearing as well. Still gots the hop? The truck has a carrier bearing drop bracket but I think it may be insufficient for the lift.

The rear driveshaft still has a slight bend in the middle of where the two driveshaft pieces connect. Are the 2 piece driveshafts on your 8" lifted trucks sitting straight with each other or do they have this bend as well?? I am thinking if I get a bigger drop bracket it may cure this slight hop I have? Lots of lifted trucks where I live but they are dam near all shortbox with 1 piece rear shafts so I haven't been able to find one to compare. By the way, my truck also has pro comp rear traction bars..

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Ford F-150 (2004-2008) :: Transmission Temp Will Get Up Around 250 When Pulling A Large Hill

I have a 2006 F150 4x4, tow package 5.4, edge tuner, magnanflow muffler.

Towing a 21ft fifth-wheel, trailer weighs 4000 lbs, my trans temp will get up around 250 when pulling a large hill.

What is hot for a transmission?

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Ford F-150 (2004-2008) :: Engine Shudder At 45mph Or While Going Up 4 - 6 Degree Hill

My 2004 started shuddering at 45mph or while going up a 4-6 degree hill. It was well past the suggested 100,000 mile spark plug change. I thought about changing the plugs myself until I heard that they could possibly break and would be difficult to remove. I took the truck to a shop and had the plugs changed.

For about 2 days it ran okay, but the shudder returned and we got PO303 (mis-fire cylinder #3), PO316 (mis-fire on start-up), and PO171 (system to lean, bank one) Codes. The shop replaced the fuel injector on cylinder #3 and again the truck ran okay for about 2 days. My son and I cleaned the other three injectors on bank one, cleaned most of the sensors and the MAF.

That work cleared the PO171 Code, but we still had a mis-fire on cylinder #3. We swapped the spark plugs between #1 and #3 and got a mis-fire on cylinder #1. We replaced the plug on cylinder #1 and that cleared the code. The truck is running great.

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Ford F-150 (2004-2008) :: Running Rough - Rear End Squeaks All The Time When Going Up Or Down A Hill

I have a 2004 Ford F150 with 149,000 miles I have recently put 5,000$ In the motor that is a 5.4 V8 before it would shake and make a terrible noise got a brand new engine from Ford put in by a ford mechanic but now my rear end squeaks like crazy and it is all the time more so when going up or down a hill or when it's shifting more or less or going over a ruff surface that's been going on awhile and was told I needed a new rear end by the same ford mechanic and wanted 1,000 to fix it!

But also said the whining noise that is coming from the front was the transmission and that I shouldn't worry about it to drive it till it goes out but it's a terrible whining noise that you only hear it when your in gear not in park or neural the truck sounds good what causes this whining noise?? Not done yet but recently the front driver side around the wheel has also gotten a squeak mostly when in low speeds and turning to the left! What to do? I'm already replacing the motor! Hopefully these are some easy fixes! I've done some research and the whining from the front that I was told to be the transmission doesn't seem to be that I would think more along the lines of pulley or alt!

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Ford 6.0L Power Stroke Diesel :: Hard To Start / Glow Plug Controller Made A Funny Buzzing Noise

I have a 07 f250 6.0l and it has 112k on it, I've owned it for over 4yrs, since 45k, and no issues, but this morning I went out to start my truck didn't start, tried again and started, but the glow plug controller made a funny buzzing noise, (making that noise for a few weeks), so I went to ford and bought a new controller, so I hope that fixed that, but on my way to work I was at a traffic light and noticed that my ficmv were between 46-48.5, icp 23-24%, vgt around 68%, truck was at temp, should I start to worry about the ficm??, I have to replace my ground on driver side battery, noticed that it is corroding, gonna do that, I have 2 yellow top optima batteries about 3 yrs old....

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Ford F-150 (2004-2008) :: Oil Leak Under Load Only?

Have a friend and looking at his truck for him. He was towing a boat and climbing a steep grade hill. As he described it, it felt like he lost all power. Did manage to get it to the top of the hill and stopped to check it out.

Noticed the under of the truck dripping oil. Checked the motor oil and none on the stick. Put 4 quarts in the motor, started it back up and oil pressure is good and motor sounds fine.

The strange thing is the motor is dry. Can not find where the oil leaked out. All the oil is located on the transmission and transfer case. I'm not too familiar with these Triton 5.4's but where could that oil possibly have come from? I'll re-look this morning.

Also, with oil in motor, and it is idling, there is no oil leak or drip anywhere. Is there a pressure regulator in this oil system and the load he was exerting cause it to release?

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Ford F-150 (2004-2008) :: Hiss When Engine Was Under Load

I have a 2004 f150 lariat crew cab 4x4 with the 5.4 3 valve. It now has 113 000 miles. Since i got it at 85 000 miles its had a hiss when the engine was under load. So like light acceleration or driving into wind. The guy i bought it from said that it had a manifold leak so that's what i figured it was. I got the manifold fixed and it still hisses. There are no check engine lights. It almost feels like my engine lags when it starts hissing. It sounds like its coming from right on the other side of the fire wall. What it could be?

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Ford F-150 (2004-2008) :: Truck Has Miss Under Load

I have a 2004 150 with 165,000 miles I sometimes pull a 5 by 8 trailer. when pulling trailer in overdrive and excelorating the engone will cough several times. I took it to a mechanic and he told me that there was nothing he could do that I needed a new engine. I can pull trailer out of overdrive with no problem. don't undrstand why I need new engine....

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Ford F-150 (2004-2008) :: No Disc And Load Error

I have a Lariat 4x4 supercrew cab with a CD 6 disc changer head unit. Error message. No Disc, and Load Error. Will not eject any of the 6 loaded CDs. Pulled/reset fuse. No luck. Banged on dash while trying to eject any of the loaded CDs.. no luck. Unit cycles when first starting the engine. Radio works fine. Unit locked up....Ford Mx tech says the solenoid that holds the CD is frozen in position and will not release.

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Ford F-150 (2004-2008) :: Rattling Sound Happens Under Load When On Gas?

Hard to describe sound, but it only happens under load. It happens at any speed, but more predominently at higher speeds. When I lift off the gas it stops. I can keep it going up hill since I'm maintaining speed rather than accelerating over the limit. The other day I heard another F150 beside me making the same noise going up a hill.

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Ford F-150 (2004-2008) :: Spark Knock Under Load?

I have a 04 5.4 w/ a whipple supercharger. truck has 104k miles. Has a misfire in cyl 4 (p0304, p0316) And spark knock.. I've changed the plugs, coil on cyl 4, fuel filter, and today the o2 sensor(pass side upper, bank 2??). I've ran tecron injector cleaner threw it, and always used Chevron 90 octane. (highest in Alaska)

The noise only happens when under load, or accelerating with more then half the throttle. doesn't happen when i slowly get up to speed. What I could do next? About to take it to the dealer to run a full diagnostic test on it.. Also, does not hesitate or bog. drives normal just with that noise

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Ford F-150 (2004-2008) :: 2006 - Backfire Under Load During Acceleration

I have a 2006 ford f 150 with a 5.4 Triton 3v engine and every time I floor it and the engine reaches 3000 rpms the truck backfires and looses power. Sometimes it wont pass 3000 rpm it just stays there and backfire and have no power. Sometimes the check engine light flashes...... I took the coils off and looked at them and they all looked pretty clean. Also the truck idles rough and sometimes when it cruising at low rpms, and I give it a little gas the truck will randomly misfire and shake hard. also the engine sounds like a diesel engine........ What might be wrong.

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Ford F-150 (2004-2008) :: Misfire Under Load At 40 - 60 MPH While In OD Or At Higher RPMs At WOT

I have a 2006 Ford F150, king ranch, 4x4, super crew 135k miles. I bought the truck and shortly after noticed the miss under a load at 40-60 mph while in OD, or at higher RPMs at WOT, but never a CEL. Well 3 months went by and I couldn't take it anymore so with lots of research I decided to change the plugs. Ran seafoam through 2 tanks of fuel prior to this job to break up the carbon in hopes of none of the plugs breaking.

All 8 plugs came out with no issue and I replaced them with the Motocraft SP 515s (old ones were very nasty and brittle, most likely the original). I put copper anti seize on the end that goes through the channel in the head, however none got on the end near the electrode, and also on the threads. Put it all back together and it had the worse misfire an pretty much not drivable....flashing CEL and codes p0308, p0355, p0356. So I decided to buy 8 new coils as well, got all 8 of them on and now the truck is drivable but the miss is still there (no CEL).

Feels like maybe just one cylinder and I believe I got it pin pointed to cylinder 8. I put a vacuum gauge on it and unplugged the injectors 1 at a time and cylinder 8 is the only one that there is no change while unplugged. So I switched out the coil thinking maybe I got a bad one, still does it. My COP electrical plug has 12v Constant and also confirmed with an led it is getting signal. The injector is ticking or pulsing as i confirmed with a mechanic stethoscope. What am I missing????? Today when I get off I plan pulling the spark plug, checking for carbon tracking, check compression, check actual visual spark, and pull and clean the injector.

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