Ford F-150 (2004-2008) :: Sounds Like Diesel Till Warm?
Jan 2, 2014
so im a fairly new owner of a 2008 f150 lariat 4x4 5.4l3v bought in September of 2013 with 32358 miles. this engine was built in 10/9/2007 and was just before the spark plug update so I have the black cop on this engine. and on cold day start ups it sounds like a diesel till warm and then it still has a slight knock to it vary slight is this normal or is this a tall tail sight of the phaser issue or spark plug issue coming to light love this truck and will fully rebuild it if I know what to do, ford dealer says that its normal and that if I lose power at some point I will need a new engine with this low mileage.
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MY 07 passat 2.0t stutters til it warms up. Took it in to vw and they replace the plugs and coils but it still does it. Engine light stays on says 2 cylinder misfires. Its stops after 5 mins but when it sits for awhile it starts again. it has 110,000 miles thought maybe it could be carbon buildup?
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Its actually on a 2008 E350 with a 5.4 but figured its all the same. There is a squeal that sounds like a bad pulley but its coming from the flexplate or torque converter. I have taken the belt off to verify. I dont see anything psychically wrong like cracks, bends or anything touching. The little I can find on this subject I would say flexplate has a crack somewhere. Transmission shop also can not figure it out. I just want assurance before pulling the transmission in this beast.
Here is a video : [URL]......
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2003 f250 6.0.... recently did oil cooler,hpop,ipr,icp,fuel pump,egr valve, rebuilt the turbo.... when around 35mph truck seems sluggish and doesnt seem to pick up quick untill i floor it an then hauls butt.. vgt reading at idle is 62% and when floored around 30 to 35%.. fuel pressure is 63psi.. ipr is around 60 to 70% when floored and around 25% at idle. Hpop reading when floored is 3000 to 4000psi and idle is 624psi....
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As the title says I have noticed a strange sound on start up in the last couple weeks that sounds like rocks in a can. Noticed only at start up and then stops but I have noticed it slightly infrequently when driving. Truck runs great, no noticeable problems. I have looked under the hood and suspension to see if something maybe hung up and didn't see anything. Thought this might be the problem since I was following a plumbing truck that had plastic buckets flying out the back and I hit one!
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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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2005 f150 super cab, 5.4 liter, 4x4 107k miles. I have a 12 bolt rear differential and the tag on the door has an axle code of "B6". No noise under power or braking but if your driving along flat road and not much power is needed to keep the truck moving then there is a hum almost sounds like faint grinding but not quite. The differential housing gets hot to touch after a 30 mile drive down the interstate.
My brother was the previous owner and this has made the noise for years so it's not critical but annoying. I removed the dif. cover to change the oil. All the teeth are smooth, no rough or grinding surfaces. No play at the wheel end so I don't believe its a bad bearing. Oil was used but not burnt up or sludgy and very few metal flakes at bottom of housing. Thought it looked good for the age. Also, both wheels off ground and truck in neutral. There seems to be a lot of resistance while turning the wheel. I don't think the brakes are dragging but will eliminate that possibility this weekend.
What rear axle I have. Why its making the noise? How to repair it? Is this a posi diff?
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My 2004 with 5.4L Lariat is struggling to keep me cool. The AC works fine on mild days but when it gets into the upper 80s it works for about 10 mins then goes warm. If I shut down the AC for about 5-10 mins. it begins cooling again.
I first tried a retail charging kit with no improvement. Then I had the system drained and refilled with die to look for leaks, but neither had any immediate impact. So it is not a leak, but something else failing.
What are the next best troubleshooting steps for an AC system?
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I'm having issues with my a/c blowing randomly warm air. At idle (stop lights, heavy traffic) the cold air will kick off but the fan will remain constant. Once I'm back up to full speed, the cold air will come back. It also works if I turn the a/c and fan off for a few minutes and turn it back when I'm at highway speed. I've recharged it and when it blows cold it will freeze me out. I'm thinking its a possible compressor issue?
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I have an 04 F-250 6.0l Power stroke diesel with a problem. The engine starts fine and runs normally until it gets warmed up. Once it is at the normal operating temperature it starts to sound like it is misfiring when idle. Once I accelerate it sounds normal again but when I slow to idle the misfire comes back.
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I purchased an '08 F150 about 6 months ago, and have a problem that two mechanics haven't been able to solve. The truck has a 5.4L engine. Unfortunately, I bought from an auction and the 30 day warranty expired before I realized the problem.
After a longer drive (30 minutes to work) the engine is warm, and I always back into my parking spot or driveway. In low gear, it begins to idle very rough and the engine shakes. If I leave it long enough, it will stall. Usually I pop it into neutral, give it some gas, and its fine. I just bought a camper trailer, so I'll need to use the lower gear when backing up.
So far, the engine has been flushed twice, the solenoid replaced and phaser replaced. The second mechanic has recommended I contact a dealer, but haven't had luck with them with my previous Explorer. What it could be? I will be getting the diagnostic paperwork this week.
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I have an 05 150, 5.4l, My truck idles around 600 rpm when warm, I think that may be slightly low. Not sure what to check on.
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History: Truck was running okay but acted like a coil was bad when under load. I changed out all the plugs with Motorcraft and put on Summit racing COPs.
After the plug and cop change the truck will run rough after it is warmed up. I changed back to the old COPs and it runs the same.
First I replaced the MAF sensor after finding many posts on here about it. No change.
I read a bunch of posts on oil causing the problem so I used 10-30w and nothing changed.
I searched for a vacuum leak with carb cleaner and couldn't find one. I removed, cleaned and reinstalled the throttle body.
When I did the plug change I disconnected the PCM without disconnecting the battery. Would this cause this type of problem?
I think this is about all the stuff I found to try in the threads that came up through searching.
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My 2005 4.6 supercrew is worthless for short trips.....I am freezing and pick any other ford to drive.....my v10 heats up totally in 5 minutes so I know something is not right.....I have changed the thermostat....( its been like this since new ) the fluid levels are perfect....what is up ?
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My 04 6.0h started puffing bluish colored smoke typically only when I was accelerating. After a short amount of time I noticed it was smoking quite a bit when cold and until it had fully warmed up. I took it to the repair shop and they pulled it apart saying the turbo seal had failed and the turbo was full of oil. I purchased a new Garret PowerMax and had it put it in.
I picked up my truck and of course it was still smoking when cold. After it warmed up nothing, just like before. Since I just put a new turbo in I am worried this one will be ruined as well since the same condition exist. My mechanic said I need to run the truck for few days before the oil would get cleared out which had accumulated in the system. Am I mistaken in thinking that if it was residual oil burning that it would be more likely to do smoke when warm as opposed to when cold?
Since the turbo and seal have now been replaced what else should I look for to cure my blue smoke blues?
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I have a 2004 F250 I just had a Ford transmission out in it. when the truck is cold it runs great. buy when it gets warm it gets stuck in a gear, even if I drop it into a lower gear. Also, if I cut it off when this happens and i cut it off it will not turn over as if it's not in gear, in park or neutral, but if I let it sit for about 20 minutes it will turn over and run as it should until it warms up again.
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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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I have 2004 f150 small v8 (4.7?) Has about 92000 miles.
When warm truck runs excellently. At first start up the idle is very rough and raw gas smell for about 4 minutes then truck runs like new. Will start and restart great until it cools down overnite.
My actron says missfire cyl 3. Did not fix it. Dealer says that on start up compression is zero in cylinder three but is 100% when it warms up. Suggested I run seafoam through it. He thinks it has a vacuum leak or carbon at start.
In my limited knowledge I am thinking:
sticky lifter
bent push rods
warp valve
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We bought a 09 RX 350 that is a CPO, currently has 75 K on it. When the engine is first started it rattles like crazy and sounds like a diesel while the motor is at idle Once the car warms up it sounds fine.. The dealer tells me this is normal. Last oil change switched to full synthetic and it still rattles at start up.
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I have 2007 6.0, rough idle starts, rough and no power till engine reaches running temperature, runs great after that. If the engine is off for half hour, and restarted, runs rough again till engine temp is back again.
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My brother's 5.4 has been rough idling and dying at stops and in reverse for a few weeks now. Today it threw a code and he finally had me look at it and it's a P0345 code. I was thinking cam phasers possibly, but I didn't think that would cause a code to throw. Also, all I hear about cam phasers is that it makes the truck sound like a diesel, but his when it's about to die sounds like the engine is about to drop out the bottom of the engine bay. Really rough, REALLY loud knocking, etc... What we should be looking at replacing to get this thing back into shape?
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