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


May 15, 2011

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 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) :: Funny Rattle Noise Under Load When Going Up A Hill

I bought a 2004 F150 XLT 4x4 122,000KM. I used to have a 1995 BMW 318TI but I built a cabin and a truck seems to go with it. I have already done some work like new plugs, oil change, tranny flush, fuel filter change and Air Filter. I noticed about 2 weeks ago going up to the cabin a rattle sound when I was going up a hill. It is coming from the right side (FRONT) and it sounds like its from the wheel. I really does it if I give it some gas and then press a bit more on the peddle and then you here like marbles in a tin can if that makes sense. I just got back from my mechanic and we took it out and it is still doing it so we jacked it up and checked everything. Their are no loose clips and back plates making noise. We did notice that a heat shield near the cat was rubbing and we adjusted it, this did not solve out problem. We were both looking at each other after an hour wondering what the hell this could be. I am going back on Wed and he is going to hook it up with some kind of machine with microphones and a headset to pinpoint the problem. It does not affect the performance of the truck but it is very annoying when I need to give it some gas to pass or go up a big hill.

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Prius (2004-09) :: Engine Rattles When Climbing A Hill With AC On

My wife has an 08 with a little over 50k miles. When under load (climbing a hill) with the AC on, the engine "rattles". This sounds like classic detonation to me. It stops when I turn off the AC or she lets off the gas. I have tried running several tanks of super unleaded with no improvement. I have searched here and checked a few things others have mentioned as well, such as a loose hood prop rod with no success.

The car just started doing this around 3-4k miles ago. Last week I changed the spark plugs, even though they are way under the mileage where I should change them. The plugs looked normal, a light tan color, with no unusual deposits or anything out of the ordinary. . Last night I checked and the engine coolant was a little low, so I topped it off. This had no effect as this afternoon on the way home I heard the same clatter when climbing a long hill. All this started back in march when the outside temps were still in the mid 80's... I wonder if it is possible that the pistons already have carbon at this low of mileage ?

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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) :: Truck Missing Pretty Bad Going Uphill Or Under Load

I have a 2008 XL 4.2 auto trans with 60,000 miles on it. We purchased a new travel trailer with a total weight just under 5000 lbs that we pulled for about 2000 miles this summer. On the last trip we noticed the truck was missing pretty bad going up hills or under load. After we got home I started to notice the miss at times even not towing. Did a tune up with Motocraft plus and wires and seems to still have a miss at an idle and very low RPM. What would be best to check next?? Would Coil be logical?

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Ford Excursion :: V10 4r100 Transmission - RPM Dropping When Climbing The Hill

Today I was 160 miles into a 250 mile drive and things were going well. I was cruising at about 75-80mph and approaching a fairly long hill of moderate grade. As I climbed the hill, my rpm was dropping, as expected before a downshift. The downshift never happened. I kept pushing more pedal and eventually, at maybe 40mph, it downshifted, but still no power. Engine being held at around 2500 rpm. No power no matter how much I pushed. Down hill I was able to resume speed but as soon as the next uphill, same thing, no power, no shift. Pulled over, it was raining hard. Checked for wet fuse box, control modules, pcm, wiring harnesses, everything dry. Checked all fuses. Disconnected battery in hopes of forcing reset, no change.

Checked trans fluid, it was clean, red, full, and unburnt. No visual wires broken or chafed. No odd smells or sounds. Nothing noticeably hot. Truck hits 45mph max on flat ground. I limped it this way for 20 miles. If I push my foot to the floor to really force a downshift, engine will rev freely up to redline with no resistance once it downshifts. If I let the rpm drop down, it will catch and lock back in. Now when I come to a stop the truck has a very lopey and rough idle and will stall once I come to a complete stop. It will stay running if I give it gas. In neutral and park the engine still has a lopey idle and is rough. Will possibly die at times. Sounds smooth and perfect when you rev it in neutral or park. Reacts as it should with no hesitations. No check engine light and no flashing OD light. Will shift into all gears, just moves through them with no power. Let truck sit for 3 hours, issue remains.

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Ford 7.3L Power Stroke (1999-2003) :: Surge During Hill Climbing

Decided to try a new wheel to see if I can stop the surge during hill climbing with our 5er. Old wheel looked great with no dusting or nicks. New wheel sure has a whirl when it spools up, but sounds cool. Haven't pulled trailer since swap yet. Truck still only has 85k on the clock.

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Ford - Explorer :: 1999 - Air Stops Coming Out Of Vents When Get On The Gas Or Climbing A Hill

I have a 99 explorer that stops blowing air when I get on the gas or climbing a hill. The motor is still blowing but it stops air coming out the vents. What could be causing this? It works fine other than that.

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Ford Excursion :: Rumbling Vibration And Noise While Climbing A Steep Paved Hill At 5 - 10 MPH

Ok...not sure were to go with this or how to explain it, while climbing a steep paved hill at 5-10 mph I get a rumbling vibration and noise. If I were to guess almost like axle wrap is causing the U Joints to bind or something. Runs and drives fine other then that. If I put it in 4x4 it does not happen, only seems to happen when wheels cant slip while climbing hills at LOW speed.

Don't notice it if climbing a dirt hill. There is a hill at the kids baseball fields that is steep and paved that its really bad on, way to busy right now to play on it to see what's happening. Tranny was looked at and oil changed.

New BDS 4" lift - had same issue prior to lift, though stock springs were worn.

Searched the form but really didn't come up with anything at this low of speed. While in Wisconsin the resort we were at the paved hills were so steep it felt like something was going to break. Put it in 4x4 and it was fine. This was with stock leafs.

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Ford 7.3L Power Stroke (1999-2003) :: Slight Pinging Sound At Low RPM When Climbing A Steep Hill

Was climbing a steep hill at 35 mph just before truck down shifted to 2nd, I was hearing a pinging sound. Sounded like only I cylinder was doing so. What it could be. I am currently running a 1/4 tank of Fppf fuel injector cleaner. Is this a injector noise. No knocking just a slight pinging.

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Toyota - Corolla :: 2010 - Horrible Noise While Climbing Up Icy Hill With Traction Control?

2010 Toyota Corolla, 5spd. I was trying to get it up a snowy/icy hill this weekend and, although I succeeded, the car made a very scary noise that I couldn't decipher. Here's what happened:

When the traction control engages, it makes a sound like the ABS engaging. That wasn't the noise that worried me. I was feathering the clutch and trying to massage the car up the slippery incline, and it started making a loud rhythmic banging noise. It sounded like what happens when you're parked and you think the car's off, but it's not, and you take your foot off the clutch. The clutch engages and makes a bang, and the engine stalls. (Not that I've ever done that before.) That's what it sounded like going up the hill, but about twice a second and very steady.

As soon as I heard it, I tried releasing the clutch pedal all the way, I tried feathering the clutch more, I modulated the throttle a bit, but honestly I was 3/4 of the way up the hill after 45 minutes of trying and I didn't want to stop! So I bang-bang-banged twenty feet up the hill or so, then when I stopped at the top the car seemed fine. I've since driven it another 300 miles of city and highway and no issues whatsoever.

Now, I've driven stick for twenty years and dozens of cars and am very comfortable in my own skill. This clutch has always seemed a little screwy since we bought the car, but the dealer mechanic told me (when I mentioned it early on) that it's normal. It's hard to describe why I think it's screwy but it doesn't feel like any other clutch I've driven, new or old. Including, every once in a while, when I'm pulling away from a stop sign in normal (dry) conditions, the clutch will chatter a couple times as I engage it. It's far from a consistent or reproducible problem, and I always wrote it off until this recent episode that sounded/felt similar but much much worse.

Could there be oil on the clutch plates? Could this have something to do with the traction control.

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Prius (2010-12) :: Burning Rubber Smell After Climbing A Moderate Hill At 40kph / 25mph

I had a very strong burning rubber smell coming from under my Prius tonight after climbing a moderate hill at 40kph/25mph for approximately 3 to 4 minutes. The car had been driven for about 50 minutes through regular traffic, outside temp was 7C/44F and I drove up to a scenic outlook. When I pulled into the parking lot, we put the passenger window down and the burning rubber smell was very strong.

I searched all around using a small flashlight and couldn't see anything touching the exhaust, but it's difficult to see anything under a Prius with it's low ground clearance. The burning rubber smell was strongest under the car, but was getting pulled into the HVAC system when we stopped. I have smelled it before, but passed it off as other vehicles. After tonight, i'm sure its coming from my car. I drove the car home for 50 minutes through stop and go city traffic, so the engine was not always running. After parking, I checked under the car again and the smell was very light almost non-existent.

I have 13000km/8000mi on the car, and I have had it for 11months. It has been driven in hills and very hot weather last summer, so I don't think this is paint burning off or the car getting hot for the first time.

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Ford F-150 - 1997-2003 :: Truck Overheating Because Temp Just Keeps Climbing

Truck runs cool when driving around town about 177. Get on the highway and the temp goes to about 195, go up a mountain pass she climbs to about 210 and I feel that If I dont back off the gas the truck will overheat because the temp just keeps climbing. Go down the highway again on a flat stretch of highway and it drops to 195, get into town temp drops to 177 and even lower when i just let the truck idle.

Truck has a brand new 195 thermostat, fan clutch is only a month old, water pump is about 2 years old, this truck has had head gasket issues in the past but every year I put in the bars stuff and have not had a problem with it since, I started doing the bars stuff about 4 years ago. This is the stuff you flush the system first with not the pour in stuff. 1997 f150 4.6l

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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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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 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) :: Suspension Noise When Hit A Bump

Just had new full struts installed as well as rear shocks on 04 F150, supercrew. There is a noise that only happens when you hit a bump. I initially thought it was the strut boot but having those replaced, and the noise still there means it was not that. What I should look at sounds like something is loose on the front end. Had an alignment done and they said all was tight.

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