Ford F-150 (2004-2008) :: 2006 5.4L Engine Knocks Real Bad After Gets Hot
Feb 27, 2012
Engine seems to knock real bad after engine gets hot like its out of time if unplug the vvt solenoids it runs great something is telling them to adjust timing to much.
When it came in it had a cam code and i found cam sensor was broken it had new installed found part of other in engine. Phaser was damaged replaced it. still did it after.
Then I pulled front of engine apart found chain tensioner leaking oil around gasket and then we decided to re time chain. If still doing it.Will let know after air mass meter.
PS no codes at this time
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2006 Ford F150 4x4 - Ford
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As stated I have a 2008 F150XLT 5.4 V8. Recently it has started making a knocking noise and very rough idle when warm. It only does it when the truck has been driven slowly or typically when going through a drive through. It sounds like a rod knock but putting it in neutral and revving the engine makes it go away for a while.
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I have a 2007 150 5.4 31,000 miles that started knocking and pinging at low rpm, fine above 1000 rpm but i am detecting ackward exhaust tone, after reading several posts on this site about similar complaints i replaced the cam sensors but prob persists.
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I just bought a 2007 F150 XLT with a Triton 5.4 with 80,000 miles on it. My problem is this, the engine seems to run ok ( a bit rough) until it gets up to running temp and I have driven about 10- 20 miles then most of the time, it starts to act up.
When I am driving it is fine, but when I slow down and come to an idle about 500rpms, it sometimes runs very rough, sounds like a diesel and shakes violently. It feels like it is doing damage. Sometimes it stalls. If I rev it back up immediately it will smooth out.
In speaking to some friends they've suggested things from plugged oil channels, (affecting the cam phasers? All the way to it needing new chains, phasers and guides. I don't want to spend a ton of money doing an improper service repair only to have the issue show up later . But there seems to be a lot of different answers to the same problem. Is the dealer going to be able to diagnose something like this fairly well? Or should I try to narrow it down a bit first?
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Is there a port I can hook a mechanical oil pressure gauge to for checking my oil pressure.
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I started having an issue when the weather changed here on the East this weekend. When I start my car in the morning the engine knocks for about 30 seconds and then stops. I also recently got an oil change at some local mechanic shop and wondered if that might be the issue. I checked the oil and it was stellar this morning but I'm not sure what kind they put in there. I would assume it's the required type.
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I am the original owner of a 2006 Prius with 265k miles. I use Mobil 5-30 synthetic oil and I drive a steep hill every day and the engine knocks in the summer afternoons when I use cheap 87 Octane gasoline from Safeway or Costco. If I use better 87 octane gasoline (Chevron, Shell) generally there is less knocking. Also during the winter months no knocking even with cheap gasoline.
During summer I can sometimes make the knocking go away by accelerating or decelerating. The knocking is intermittent and generally occurs only during the steepest parts of the commute. The engine might knock for 30 seconds to 60 seconds before its goes away as I try to change the engine RPM.
Unfortunately I am burning some oil at a rate of approximately half a quart every 5k miles. Generally I watch the oil level, but there have been cases where the oil level has fallen below the lowest mark on the dip stick so I suspect I have some carbon build up.
I've read posts where others have used additives like gumout regane and I've read posts that say not to use additives.
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I have a 2002 Crown Victoria LX. The engine runs great with the exception of a loud knocking sound sometimes when starting or stopping the engine. When starting, it's a single loud knock after the engine turns over. When stopping, it's anywhere from one to several as the engine motion comes to a stop. When it's several (probably 4 or 5) they are quick but it's apparent that the rate slows down slightly over time, as if it's a moving part inside the engine coming to a stop. It is worth noting that about one-third of the time when turning the car on or off, there is no noticeable knocking sound whatsoever. Maybe something is loose inside?
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We have a 2006 F150 w/new engine, new everything but transmission and cat. converter. When driving in warm weather with the AC on and at low speeds or idle the engine will knock and want to cut out but you rev and turn off the AC and it stops. Only with AC on. We replaced fuel filter, fan throttle took to dealer and updated the software which it stopped for 3 days and started again today. Could it have to do with AC compressor or low refrigerant?
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The other day I bought an sct tuner for my excursion and its been a little glitchy, likes to freeze up and lock out my ecu.
I was driving yesterday and today I try to turn it on and my engine knocks badly revs erratically and all gauges weren't working so i shut it off. I tried to start up again and it flashes the theft light and abs light. Won't crank won't do anything my whole engine is locked out.
So i tried reverting the ecu back to stock. I did this several times once it simply lost power and shut off at the end another time it said wrong vehicle and the final time it said completed.
Now when i try to start up it does the same thing and will not do anything but flash lights at me... When I downloaded the file it said select vehicle: 6.0 superduty. That was the only choice, and the guy at the store said that the truck tuner will work in my excursion I specifically asked if this works in the ex.
I really need my truck otherwise I will he paying hundreds in taxi fare. I tried calling the store and sct but both are closed on weekends.
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My 2006 F150 with 77k seized up on friday. Sounds like a bad injector flooded the engine, caused hydrolock, and then bent a rod. I called the dealership today and they said the only fix is a new engine. I have 3 payments still left and now the dealership is telling me I gotta buy a new engine.
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My 2006 f150 was making a noise that's coming from the engine. It sound like rocks in the engine. When I'm going 50-60 MPH the engine starts to make a sounds like rocks in the engine. What's happening. When I go about 40 it stops.
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2006 STX 4.6 .... I recently changed my oil a couple of weeks back. I've noticed spots of oil on the driveway. I thought it may be coming from the oil pan drain plug but i checked it and it seems to be coming from where the transmission connects to the engine. Lotta oil on the bell housing. That's where it looks like it's dripping off of. Could it be the rear main seal?
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2006 F150 Triton 5.4 Motor... It's been over a months journey with fixing this truck....
How it started: had an oil change, a while back, on long drive after, check engine light started flashing as I accelerated up hill so I pulled over and in a while it was ok, but couldn't get on the gas too much, or it would cause that flashy light thing.
So fast forward to now, after driving it with an intermittent miss for a while, was driving it to work and the miss became a shudder, and she stopped going over 30-40, and runs extremely rough.
Steady but loud idle.
Replaced all plugs with motocraft plugs and new coils all around. No change.
Finally hooked it up to a computer and got random misfires, now it's saying
P0174 bank 2 too lean,
But it's bank ONE that's the only side misfiring.
Here are the freeze frame details:
Frame 1 Mod $00
MIL Status Off
Troub Code P0174
Abslt TPS 24.3%
Eng speed 1665
Baro PRS 71 kpa
Calc Load 100%
[Code].....
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