Ford F-150 (2004-2008) :: 2005 - Idle Really Rough / Revs Will Rise And Then Drop Again If Blip The Throttle
Sep 17, 2014
I just locked out the cam phasers on a 2005 f150 with a 5.4. It now idles pretty rough. If I blip the throttle the revs will rise and then drop again, and it barely catches in time to prevent a stall. If I continue to tease it this way I can usually get it to stall. I'm getting no CELs or anything, but I intermittently will get a P035x code (it seemed to rove. I've gotten cylinder 1, 4, 6, but not consistently.). I have chased those around by swapping coils, checking/cleaning the connectors, etc.
I am kind of thinking that these codes are a symptom of my idle issues, and not the actual problem. What could I have done wrong? Could it be a vac issue? I had basically the entire ECU harness and all the vac lines disconnected to do the job, but as far as I can tell everything has been reconnected to the correct locations. I did have an SCT tune done to remove the phasers in the ECU. I installed it and still have the issue, so for now I am on the stock tune just to eliminate any variables.
Could my tune be the issue? Is this how you would expect the engine to behave with locked out phasers and no corresponding ECU tune?
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I recently bought a 2006 that idles rough, not real bad, but bad enough for me (and my 9 year old kid!) to notice. I asked the dealer where I bought it and they put it on the computer and said everything checked out. He said "it's a characteristic of this motor." I've never heard of such a thing. The truck has 27,000 miles on it and the dealer flushed the fuel system. He said the throttle plate had a lot of carbon on it, but it still idles rough... 4.6 idle rough?
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I have a 2005 5.4l f150. 105,000 miles. Recently While on a trip I experienced rough idle and stalling at idle. I drove it home 2hrs. The ride home was challenging. Poor acceleration, rough idle. Took it to the dealer and was told I needed plugs and I was 5qts low on oil! Not sure where the oil went. It hasn't been leaking and never seemed to burn oil in the past. They did the tune up. Picked up the truck. It ran fine while cold. Upon warming up it ran rough at idle and stalled just like it did before. Took it back, they said "you need a new engine. Upon warming the oil pressure drops indicating internal engine damage". I took it to a local guy he says replacing the cam phasers might fix it. What's the consensus, should I try the cam phasers? Look for some other potential problem or trust the dealer? (They did refund me for the tune up)...
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2005 f-150 4.6l v8 rough idle only when truck is to normal operating temp. I have run several gas system cleaners through the truck. I replaced the air filter, the fuel filter and the spark plugs. I am only getting 14to 15 mpg mostly highway. No DTC's are showing up. The truck only has 50,000 miles.
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I just purchased my first F150, 4.6L V8, 55,600 Miles. It intermittently has a rough idle and only seems to be when the engine is hot. I've had engine and tranny mechanics look it. The spark plugs have been inspected and are within an acceptable range. The throttle body has been cleaned. There are no trouble codes of any kind. What I can check next?
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A week and a half ago I went out to my truck to go somewhere and I got about 2 blocks away and the truck started running really rough and had a big lack of power, so I turned around and scanned it with my code reader and the codes I got were p2271, p2196, p0303, p0012, p2197, and p2272. since then I've changed all the spark plugs, boots, swapped all the coils and injectors from a great running truck, fuel filter, and the bank 1 upstream O2 sensor.
the other thing that came to mind that could of caused the problem is that a few days before the problem started. I jump started a co-workers car and he hooked the cables up backwards on his car. Could this be the cause of the problems I'm having.
The truck is an 05 F150 FX4 5.4 with 180,000 miles on it.
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I have a 05 fx4 5.4L with 85k on it. It has started idling rough when i come to a stop light or slow down to 10 mph or less. It only does it once in a while. There doesn't seem to be any real pattern. The motor shakes until you rev it up and then it goes away.
I have cleaned the maf, put in new air filter and fuel filter. And put in a new battery. Would a coil act like that? Maybe plugs? Or a vacuum leak?
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my f150 running right so i can enjoy it like everyone else does. I have a 2005 Ford f150 with a 5.4 auto.
It has a rough idle(shakes the truck), very little power, and poor gas mileage. Randomly It will throw a code for misfire on 1 and/or 3 on start up only. It does seem to perform better within the first few of starting but dies right off after that. In fact i got stuck in the snow the other day and it could barely break the tires loose to try and get it out (almost put in 4low cause i didn't want to hurt the trans). I have replaced:
Cats
Fuel pump
Plugs (motorcraft)
Random Coils
Did the timing chains and phasers
MAF
All new injectors
Intake gasket
Was at my mechanics and had a scanner on it and at idle the 1-4 cylinders are all show a negative cylinder contribution. But when you rev it up they all go to 0 across the board. Was kind of thinking about the Variable Timing solenoid.
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I have a 2005 f150 5.4 3 valve with the p0012 code the truck runs good has a rough idle not sure if it is worth changing the vct or not the truck has 190000 miles....
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I have a 2005 F-150XLT with the Triton 5.4L. The other day while driving on side roads (Paved, not back roads) I noticed my CEL on and it was blinking. There was a very rough idle as well as a big loss of power. When I pressed the gas pedal it was sluggish to say the least. I have yet to get a computer on it, since I had to order one. There is also a light gas smell, only smells near the rear of the truck. From what I am guessing, I think it is either a spark plur or a coil over pack, Truck has about 56K on it.
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I have that wonderful ticking noise... Here is some info on my truck: Its 133k, 5.3L 3V. I put new plugs in it and changed the oil (YES the right filter and oil).
Okay, so I'm trying to make sure my diagnosis is what I think it is before I start digging into the motor and get angry because I ordered the wrong parts.
Preface: I got the truck from a deal auction. I was told it ran great, well when I got it, it had this tick. It comes and goes as it pleases (not dependent on the weather or RPMS. The noise is consistent, it gets faster as RPMs rise, it doesn't go away after 1,200 rpms. This lead me to eliminate cam phasers as the issue.
Now here is something odd: After starting up the truck, initially it will be pretty quick and have great throttle response, but after that it will start act like someone put on the parking brake. It can barely accelerate and when you put it to the floor it gets worse. It seems to accelerate best at half throttle. The second part is the truck will shift, dropping the rpms incredibly low and the tick gets louder and more spaced out (leading me to think it's rpm dependent).
All of the noise seems to be localized around the passenger size head area. If I unplug the VCT solenoid the ticking doesn't seem to be as loud if I drive it the next day, and it doesn't do the shift into lower rpms and accelerates wonderfully. Leading me to think it's either the timing is off and when the phasers kick on it goes way out of time and causes it to go into limp mode...or the VCT solenoid is bad?
The ticking never fully goes away, but it has it's quiet days and LOUD days...
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Getting these codes what they mean or need to do ..to get rid of them...p0022, p0171, p0174, p0183, p0340, p0300, p0316, p2006 did timing n plugs fuel filter n gas filter getting very bad gas mileage it runs good but here a ticking in motor at idle and more as u accelerate, running rough....
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2005 f150 Lariat 4x4 5.4
Had phasers, tensioners, chains, guides, and sensors replaced. After driving the truck, it started to get a rough idle at low speeds, primarily in reverse. Changed both vct solenoids with no results. Started to get p0022 code. Changed the oil with motorcraft filter and 5w-20 twice after the work had been done, thinking it might need it. Vct's were a little varnished, but not too bad.
After a couple days of light driving, got a misfire on #3. Replaced the coil and it hasn't been back since. I am stumped at this point.
The computer show the timing to be at +13 when sitting stopped and in drive. It fluctuates a little, but not much. When the truck goes into a rough idle. The rpm's fluctuate wildly. It seems to be happening more frequently, the more I drive it.
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My friend just bought a 2008 F150 5.4 110k, it ran great all day during all of the test drives, after he gets it home it has started acting up. Most of the time it runs great, but sometimes when you stop the truck the idle will drop down and the truck sounds like it is going to die but so far it hasn't actually died, it starts knocking really badly and runs very rough. If you let it keep running like that it sets P0340. If you rev the truck up it cleans up and sounds fine again and it will even drop back down to a clean idle most of the time. I swapped the cam sensors because it was easy and just to see and it didn't make a difference, I was hoping after switching the sensors the code would switch to the other head but it didn't.
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I have a 2009 Tiguan Auto Diesel and have noticed recently that, when cruising along, if I take my foot off the gas pedal the revs drop to idle. The revs only pick up again if I touch the accelerator. Im sure it did not used to do this. If you feather the gas pedal to maintain a set speed (say 50mph) then this can have the effect of the rev counter dropping to idle and going up again to, say 2500 rpm all the time.
The rev counter seems to be all over the place!!! I also had a stall situation the same day. I was leaving a driveway to join a main road. The driveway is on a slight incline when exiting. I nudged up to the kerb line as normal and then took my foot off the gas to check noting as coming. Nothing was so I accellerated gently and the car stalled. I think this is related.
The Tigual Auto box is not DSG it is regular Auto and it is also 4motion. I have noticed the haldex doing its thing in D2 when pulling off, you know that weird bit where the revs drop a bit even though the gear is not changing. This is a little similar to that but not the same....
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Issue on my wife's 2002 SC430. Recently ran into the well-documented disappearing acceleration caused by one of the trifecta of sensors on the throttle (TPS, APPS, and Throttle motor). Replaced the throttle position sensor and seemed to resolve issue. As of about a week ago, however, the car has developed a hiccup that I can't diagnose. Here's what I've recorded and done so far:
Symptoms:
-Hesitation at 1800 or 2300(?) RPM under light throttle and increasing load (often on uphills).
-Throttle down-blip of 100-200 rpm momentarily, only lasts ~1 sec
-Noticable lurch to vehicle, slows down slightly, results in 0.08G accelerometer reading when kicks back in.
-Change in engine exhaust sound as if in C-gate gears on a downhill (sounds like engine braking).
-Sometimes happens repeatedly in quick succession - up to 8 times in 10 seconds.
-Not speed dependent
-Overall performance is fine, not sluggish or hesitating when you stomp on it.
-Intermittant issue, not replicable, happens at random.
-No error codes thrown, no CEL, no DSP lights.
-Consistent -14.7psi vacuum registering on OBDII
Actions taken:
-Recently replaced and tuned throttle position sensor
-Seafoam on a nearly empty tank for 3 mi, half-full tank for 40mi
-Italian tune-up
-Disassembled and cleaned MAF
-Cleaned air filter (K&N)
-Reset computer (battery grounded for 10 min)
So... the question is, what the heck is this? Here are a few thoughts of what to do next in order of easiest/most likely/least expensive:
-Remove ABS relay and check performance (maybe TCS is hitting brakes a little?)
-Check all vacuum lines
-Seafoam cleaning through vacuum lines
-Remove, disassemble and clean TB assembly
-Test continuity on throttle body motor
-Test continuity on VVT solenoids
-Test continuity on full range of APP Sensor
-Replace VVT filters
-Replace VVT solenoids
-Check spark plug torque?
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2005 F150, 5.4 motor. Truck would loose power and no throttle response. Shutting off and restarting, ran fine. No codes showing. Cleaned throttle body and plate, reassembled. Key left on for 20 minutes. Tried to start vehicle. Making a clicking sound, dash lights flashing on and off when hear clicking sound when trying to start vehicle. when key turned to on position, dash lights go off except check engine light. When checked, no codes shown.
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2005 Ford F-150 FX4 5.4 V8
So my battery died the other day when I was working on the radio and I ended up having to jump start the vehicle. After the jump start the Wrench light came on the truck or the ETC light. (After doing research I have discovered you are not supposed to jump start a vehicle with ETC)
I have taken the car to the auto parts store and it does not seem the code readers they have can read codes for the ETC light.
I have also disconnected the battery cable to try and reset the light, but it still always comes on about 10 seconds after starting the car.
I have had no issues with the vehicle despite the light. No rough idle, no starting issues, or acceleration issues at any speed. What I can do to resolve this light or what part I fried when I jump started the car?
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.Here is a run down of my truck 05 5.4L Screw has 130K on it. Sometime when going up a slight incline the truck at partial throttle will shake very very little. if I put my foot into it the shake goes away and the truck response just fine. It only does this when going uphill on the freeway and on the streets here in Dallas that have slight inclines.
The truck is not throwing any codes nor does it stall at lights. Starts right up in the morning and runs good. Nothing done to the truck except I have an Edge programmer and Magnaflow exhaust. I have pulled the programmer off and returned the truck to stock and it still does the same thing.
I bought the truck used in 07 had 40K miles on it. I'm thinking spark plugs or maybe a coil is going bad. But this doesn't happen all the time just here and there.
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I just bought a 2005 fx4 and there is a whining or whirring sound coming from the rear of the truck when I hit around 70km/h. the second i let go of the accelerator it stops.
Today when I got home after a 15 minute highway drive, i got under the truck and felt the differential area. it was warm but not hot. and there was a wet spot on it. i wiped off a drop of oil. there was also a wet spot on the bottom, seemed to be just water? I'm not sure.
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I have a 2005 F150 5.4 FX4 and I had these two codes thrown over the past week/few days...P0325 and P1000 (pictures below of descriptions...I have an edge programmer and have been running it on the highest setting for a while now but always run premium fuel. I got these codes and reset them and they came right back. I then reset the cpu to the factory programming and they still keep coming back. I still have premium in it and it seems like when you hammer it that it falls flat on its face! It runs good and pretty smooth but seems like it has no power when throttle is pushed hard. It seems like it has a small vibration at about 3,000 RPM but only for a few seconds and then smooths right back out again. The truck has 88,000 miles and I just put new Motorcraft plugs in it about 6,000 miles ago. Not sure what I should do or what is the next step.
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