Ford Super Duty (1999-2016) :: 2008 5.4L - When Slow Down To Idle Engine Starts To Diesel
Aug 25, 2017
I've got a 2008 5.4L I just bought. The previous owner just ran around the city and never pulled anything with it. After the truck has been pulling and the engine is hot, when I slow down to an idle the engine starts to diesel. This lasts for a few seconds then goes back to normal. Is this just because the engine isn't used to working and the computer hasn't adjusted yet? is this something that could be serious and I should have checked out by a garage?
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My truck starts sounding off like a foghorn at slow speeds and idle, goes away as soon as you tap the gas pedal. The truck is all stock. 2004 5.4L ....
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2003 f350 sd 2wd 5.4 auto cab chasis 40 gal rear tank (home depot truck//for real)
Wouldn't start/towed home/ran until it was parked ...
Bad fuel pump//replaced//new fuel filter ...
Starts but won't idle//will run if feathering throttle...
Code's po443/po1451/po1747/po755/po743 never had these codes before
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Last few months my 08 F250 has been slow going up hills. The fluid checks out ok and it shifts fine.
It just seems to take forever to get up hills. Has 124K....
Also has a huge hissing noise thats RPM dependent on the passenger side. Will make the sound in neutral just revving.
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I have an 08 f350 lariat with the 6.8 with 66000 miles. A month ago took it to the dealer with a plugged catilityc converter. All covered under warranty. Got the truck back, starts great when cold including 18 degrees the other morning. I drive 7 miles to work, shut it off and restart, it acts as if the starter is struggling to turn the engine over. Once it cools off, starts fine again. I took it back to dealer, they replaced the starter. No change. Took it back again, they replace battery. Cranks a little faster, but you can tell it's still struggling. It always starts, I'm just wondering how it will be when it's 80 out and in pulling my 9000lb camper....
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I have a 2000 Ford-F250, V10, 6.8 liter Gas. The issue is that when I try to start the vehicle it will start, but then start to idle real low and then die. If I try to restart sometime it will and sometimes you have to let it sit. I can also pump the gas and it will sometimes start.
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2008 F-350 ... Getting a click in the steering wheel. Slow speeds in parking lots. Even with the truck off you can manually move the wheel and notice it has play. Maybe 1/16" - 1/8" of play
Read a few old posts saying there was an TSB on it TSB 05-15-1 ... Couple of the posts say they replaced the steering column. Wanted some input before I pull this apart. It's more annoying than anything ..
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I have a 2002 F-450 crew cab 2wd automatic 7.3 diesel with 298k on the body and about 120k on a Jasper engine. About a month ago I started it in the morning to let it warm up. Went to make coffee. Came back and it had died. It was low on fuel and I didn't pay attention. Played hell getting it primed back up. Now if I don't let it warm up for twenty minutes it won't run worth a flip and has been dying out. Changed fuel filter. Unplugged ICP. No change. When I crank it it will turn over for about thirty seconds then oil pressure gauge moves, then engine starts to run very roughly. It will die. I repeat a few times. It will eventually start and start and stay running. Blows whitish grey smoke until it warms up. No loss in power till CEL comes on. Still not too much loss. Sometimes it takes a long time to get it running. Sometimes it will die after I get out of the driveway if I don't let it warm up. Truck was serviced maybe 3000 miles ago. No water in fuel. New fuel filter. New air filter. It is a company truck. I work for a small company building cell towers.
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I have a 2006 F350 6.0L Diesel with about 72,000 miles on it. It has been the best truck ever, but just about two weeks ago it started doing something real strange. While driving, and it seems to only be at slow speeds, (idle or just accelerating), the truck will shut off the engine. And it is always in this order, it will first "pop" all the speakers real loud, then the radio will reset, (go to the AM radio and shuffle through my 6 disc changer) and then the engine will shut off.
Once I bring the truck to a stop and put it into park, it will then start back up with no problems at all. There is nothing I can seem to piece together as to when it will do it other then it seems to only be at slow speeds... Besides that, it is completely random. One day it did it four times, and then it didn't do it for the next few days at all... The only thing that has changed over last 2 weeks is that, the last few times that it has done it, it didn't kill the engine, it still popped the speakers like normal and then reset the radio, but didn't shut off the engine.
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My 08, when I connect my 7-pin trailer up, bouncing down the road that message and tone CONSTANTLY going off....drives me nuts! I have went thru the wire harness 2x now, cleaned all the contacts, etc. Any other thing short of a 12 gauge? When it does pop on, the controller starts flashing...I've reached down a few times and manually hit the brakes and it still hits em so whatever it is, I feel its very minor or whatever....just don't know where to go now! All contacts have been cleaned good as well.
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Why my 08 diesel keeps gelling up? I have new filters. Use anti gelling additive. First year i have ever had a problem and its done it about 4 times now. i even use diesel where they put additive in the diesel and then i put my own additive in. Still having problems. I even put a piece of cardboard out front of the coolers to try... I am real irritated right now. 137k miles as well.
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I recently bought a 2001 f-350 xl 4 door with the 8 foot box it has the 5.4L triton v8. I was heading to a job up in northern Alberta about 10 hours away from where I live. On the drive I lost control of the truck on some black ice I was doing about 50 miles I went into the ditch but nothing crazy drove right out after. Now my truck won't do over 30 mph the engine starts to sputter and back fire I loose all my power, what's going on. At idle she revs fine but as soon as I put her into drive it's like she wants to die what can it be?
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2002 F-350SD V10 Automatic. Running down the road with no load or with load. First gauges bottom out, next overspeed light starts flashing, engine goes to 3000 RPM on it's own. Stays that way until I shut off then restart. Sometimes it does this several times in one mile.
Second trick, again driving along, all gauges stay up but engine just stops. Got to set dead for 5 minutes before it will start. The shop says on the first problem this happens: Voltage goes way low then goes way high then everything starts failing. We changed battery but no luck. Got to be down line from battery.
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Just changed the oil in my 6.0 and I'm sitting here looking at my tuner and is telling me my idle rpms are about 770.
Before I changed my oil it idled around 750.
It's running fine, I was just wondering why it changed? More pressure to the injectors with the newer oil?
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I am having an issue with a Ford f250, 5.4L, granted this problem existed before and after new A/C compressor, dryer, evaporator, vent door switch, blower motor resistor, new evac and recharge, good pressures no leaks.........Now my problem is the truck runs perfect but when the ac engages at idle the engine bogs down and it seems the clutch is constantly engaging and disengaging........AC blows cold, no issues there, does this sound like an IAC valve problem????
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I recently purchased this 2003 F350 DRW with the 7.3L, automatic trans. Truck has 140k on it. Three times now while the truck has been idling, the engine just died. The first time was a couple of weeks ago when I was pulling out of the driveway. Then again yesterday twice, once while just sitting at a stop sign. Each time it has started right up and ran fine.What is going on here?
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We have a 2008 f250 super duty with the 5.4 triton well ever since I replaced the power steering pump its been running raggedly, it idles rough and when i get up to 50, 55, 60 the check engine light comes on i put a diagnostic reader on it and said something along the lines of ECU bank 1 an Bank 2. What that is and I've been a mechanic for almost 3 years.
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I have a 2001 f250 with the 5.4 I replaced the belt because of belt squeal and after replacing it the squeal is gone. now after the truck gets to its normal temp and I stop at a gas station for dip I will leave it running and when I come out it has this loud chirping noise it kinda sounds mechanical but it very well could be something on the belt drive. I am stumped it goes away after I start driving but I am kind of nervous about what it could be.
And the only time I hear it is while the truck is at normal temp and in park I have rolled the windows down and can not hear it while driving or at traffic lights. a part of me says it could be the fan clutch and now that it has a good belt on it I am hearing a sound of maybe the clutch going out or a pulley bearing starting to go out. Where I should go from here?
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I have a 2005 F350 diesel, 54000 miles. I was at a red light today, engine is idling normaly.. light turns green and I step on the throttle and get nothing. My truck is rolling (in drive) as if it were in nuetral. I shut the engine off and it does not start for 10 to 15 min. Then it fires up and seems to be running as if nothing happened.
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I have a 2004 ford f250 5.4 and ithe makes a Humming noise only at idle. I have checked the fan clutch. it seems to be good and does not spin freely. I was thinking maybe idle air control valve but the truck idles like normal and does not stall. the sound does go away when squeezing the air hose doing today the IAC but comes back as soon as you let off. can it still be the idle air control valve if idles fine and doesn't stall?
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1999 Ford Triton V-10 engine, after changing Oxygen sensors, all vacuum hoses and Mass airflow sensor,(also replaced another sensor but can't think of the name of it right now) now I don't get the codes but engine will start and idle but if I give the engine gas it bogs down and stalls. Vehicle sat in my driveway for 3 months, I got it started and drove it once about 30 miles filled up my gas tank thinking gas could be stale, but now it will not run.
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