CEL came on last night, OBD code PO420, truck is an 06 f250,5.4? Btw, truck running rough, no power on acceleration, in gear at idle, runs rough....
View 4 RepliesMy truck has been doing this for a while now but it has progressively gotten worse from about three months ago when I went through some deep water. I don't believe it had to much to do with the water, I just think that the water is what didn't deal the situation and lead to the problem becoming more prevalent. But continuing, yesterday it got down into the high 20's and my engine started acting up (rumbling coughing, surging while at/leaving complete stops) and then it finally through a code for once and I head over to the neighborhood AutoZone expecting to get a lean code (because when the engine is acting up really badly I can unplug the fourth cylinder fuel injector without the engine acting any differently) but instead I received the p1152 (bank two lack of switching (rich)) code....
At this point I believe it is a faulty fuel pressure regulator, but without a good diagnostic obd2 reader or a fuel pressure gauge I'm not sure what to do. I'm currently in college, money is low, and I'm trying to take an accurate shot at the part that needs to be replaced so that I don't have to buy more than one part. Of course AutoZone says o2 sensor but I changed both about five months ago.. I've been chasing this diagnosis around for way too long now. (It's on a 2002 ford f250 5.4l super duty)
I have a 1999 F250 SD V10 4x4. I recently had a transmission installed and the truck is running erratic. I have an engine miss (sometimes when idling, more so when in drive and foot on the brake). I say sometimes because there are times it will not miss and the engine runs smooth. The transmission shifts a little strange and sometimes hard.
I am getting a code reading that says my TPS is faulty, but I installed a new one a few months back.
The engine is running rough (jerky on acceleration) especially when driving. I was wondering if I should take it to a shop and have them flash the computer to reset it?
I also remove the AC compressor a while back (bad clutch). I installed an aftermarket pulley.
I have an 2003 F250 7.3 Diesel 4wd. Yesterday I knew I was low on fuel but I don't think I ran out of diesel. My gauge was above the "E". 50 miles left on my overhead readout, but you never know. All of a sudden the truck misfires and is running very rough before it dies on me. I get it towed home.
Thinking that it possible I ran out of fuel and screwed up my fuel pump, I bought a new fuel pump and fuel filter, installed them and I have the same symptoms. I am guessing I lost my prime, who knows. I have 180,000 miles on it and haven't ever had engine problems.
I bought it and changed the fuel filter and it was dirty. Then ran a tank of gas with seafoam and then with lucas fuel injector cleaner. Still nothing. It idles like its missing and as long as you are light on the pedal it revs up fine but if you're heavy on the throttle its. Its has no codes that's why I haven't replaced the coil packs and plugs but they have been ordered. I just thought there would be an engine code if any of the coils or plugs were bad. Looked for a vacuum leak but couldn't find any. The donut gasket on the pass side is bad would that cause it to run shifty with no code.
View 2 Replies2008 F250 5.4L 150k. My truck has been driving pretty rough in low gears, rough idle, and today the check engine light came on then getting on the interstate the light started blinking. I ran the code it came back 0307,300,308,300. After doing some research on here, I've come to the conclusion to change out the coils on 7 & 8. Questions are, should I change plugs as well? And how important is it to keep all the boots (of all 8) the same color (brown or black)? And should I expect to change all the rest soon?
View 1 Replies2001 V10- F250.. Runs rough- had the computer put on it and was coming up with P0174 codes (I think that is right)- In any case I replaced the Mass air flow sensor- checked for any vacuum leaks visually- I did not see anything obvious.... still runs like crap.... smells like gas when idling.... anything else I can check??? The check engine light went off finally (probably due to the MAF)- but it's driving me nuts- Any hoses I have not located I need to check?
View 10 RepliesI have an 02 f250 V10 with a rough idle (90K Miles). It's not horrible but it's obviously not running perfect. Everything seems ok when I am up and driving, especially at freeway speeds. I recently noticed that if the truck is in park and I run the RPM's to 1500 or 2K and quickly let off the gas it will die. It never throws any codes. So far I have replaced the IAC Valve, fuel filter, O2 Sensors, PCV valve, cleaned the MAF sensor and replaced the air filter. Plugs and boots were replaced 5K miles ago. Fuel trim levels on both banks are running around -3.1 to positive 3.5 based on what the computer is telling me. Also according to the computer the vacuum sits steady around 25 at idle (+ or - .2). I don't have a manual vacuum gauge, just relying on the computer. I've also gone around to every plug and disconnected both the injector wire and the COP wire and they all seem to equally affect the idle as well as the fuel trim levels.
View 11 RepliesI have an 02 f250 5.4. I just did the intake manifold. I also changed the spark plugs and the valve cover gasket. Following this I drained the oil and filled it with fresh oil.
It started right up but it felt like the engine was really vibrating and running rough. The check engine light than came on. I don't have one of those tools to diagnose it.
What could be wrong?
So, I have a 2007 f250 with the 6.0. When she's cold she starts fine but runs rough like she has a miss. When she warms up the miss goes away and it runs pretty good. But if I shut it off it won't start for about an hour or so.
ICP sensor has been replaced.
FICM is putting out 50v
I have a 99 f250 5.4l 2v with 165000. just two weeks ago i went to start up the truck on a job site to take lunch and it was running really rough. I talked with a mechanic at my shop and he said that it sounded like the aic or that i needed plugs. I went and bought aic and plugs and installed them all in one day. I unhooked the battery before i did any work and have changed the coil packs about 3-4 months ago when it was jerking at highway speeds. I am at a loss.
Read so much on the site about could be this or that and cant afford to through money at it like the govt does. I replaced the ait(air intake temp sensor) and the ect(engine coolant sensor) after i got a code from oreillys that said p0113 which is high input on it. I have read it can be so many things and it seems to be running rich because i am getting about half of mileage i was getting before problem started. i need a fix soon as i must drive the truck to work everyday which is a 52 mile trip total.
What may be the issue with my truck. Drove earlier in the day and hauled trailer. Ran fine. Got it home and once I unloaded trailer and went to start up truck again it died a minute into backing up. I tried to restart and turns over but dies in 3-5 seconds. Tried again a few hours later and next morning and same thing.
Pulled code and came up P0172- Bank 1 running rich. I had replaced the Mass Air Flow sensor a few months ago. Since it was still under warranty I went and got a new one in case that was the issue, but didn't fix. When I try to start it smells like gas. Sounds like fuel pump is coming on fine. Checked air filter.
Of course is still hooked up to the trailer and in a tight spot in the yard at the moment so anything basic/inexpensive I can try myself first would be great.
I have a 1999 F250 Super Duty 5.4L, 118,000miles...engine seems to idle somewhat rough but tach doesn't seem to move off 1000rpm & when giving slight acceleration seems to act like its missing, shaking . But under acceleration moderate or high purrs like a kitten! Always starts good , few cranks. Any hints on the what issue might be?
View 2 RepliesI have a 06 6.0 with 340000 miles on it believe it or not still pulls great. The problem is my clutch fan keeps roaring when I press the gas it's extremely loud all my gauges are fine so the truck isn't overheating? Also not a bad fan clutch I wasted 300 bucks on that and it's still doing the same thing.
View 6 Replies2002 F-250 5.4l 4x4 ... I am getting a P0171 code only, with strong fuel smell. No P0174 code. So it has to be something effecting just the one bank? Sprayed engine with starting fluid, no charge in idle. Replaced upstream O2 sensor, no change. Truck was running fine, and then just started this all at once.
View 5 RepliesMy 2006 F-250 (6.0 Diesel) started blowing black smoke under acceleration yesterday. It has 181k miles on it now. No loss of power, no rough idle, no smoke unless there's a load on the engine like accelerating, but then it doesn't matter if it's 1500 or 3000RPM, just the higher the RPM the more smoke it blows from the exhaust, dark black.
The truck has ARP headstuds, no programmer. Replaced both batteries and the A/C system about 2 weeks ago. About 3000 miles ago it got new glow plugs & harnesses, new alternator, all fluids changed, new aftermarket EGR cooler, new EGR valve, new turbo & actuator, new EBP sensor, new HPOP incl pipes and IPR.
Trucks starts up just fine, runs normal, just yesterday going down the Freeway about 65mph I noticed it started smoking black going up a hill, then smoke went away going downhill... Now every time I accelerate it's smoking black. Taking off from a stop sign it made a little puff of white smoke then went back to black smoke, but that only happened once.
Where I should start looking? No codes so far. But I have an AutoXRay EZ-Scan 6000, what sensors do I need to look at?
2005 F250 6.0L ... My truck is running really rough when the engine isn't all the way quite warmed up. once the truck is fully warmed up to normal running temp it runs good. I am getting four engine codes. P0672, P0673, P0674, P0676 These codes say 2,3,4, and 6 glow plugs have a open circuit. Can this be the cause of my problem?
View 7 Replies06 250 5.4 40k on it, usually when cold and accelerating engine will misfire and stutter and then continue accelerating. The wrench light will flash sometimes but it wont store a code. This used to be vague in occurrence but has now started to be more a common occurrence even when up to normal operating temps.It seems only to misfire /stutter on hard acceleration or towing/hauling heavy loads. The only answer I got from a mech would be to do a computer reflash, not sure why /how this would fix whats going on.
View 1 RepliesOk just bought this truck ran fine. Put a sct tuner on that the truck came with and some how got the egr turned on. It had a egr delete so it was smoking and finally found it out that it had turned on but fixed it. Now we have another problem, it will start up and run fine and about 45 seconds it will start running rough and go into a limp mode. It will run rough and starts to die slowly and when it starts to die there is no throttle at all.
View 4 RepliesI have a 2006 E350 van, just recently had passenger side injectors replaced along with dummy plugs and stand pipes. I was at the car was spraying it off and noticed it started running rough, just figured maybe some water made its way into the engine bay and something got wet as it was running great. Well its stayed that way and i am getting codes p0264 and p0276. Digging around on the net seems like its ficm or wiring, ficm is 48 volts and 13.5 volts, connectors are on tight and i dont see any wire chaffing kinda stumped. hoping its not 2 bad injectors at once.
View 2 RepliesEngine light and error code for tps occasionally comes on , then stays off a while. parts store said it was ok (shows full range) , but ford has an update for computer to fix. engine is v10 and parts store erased code and it hasnt come back. the only indication that something was wrong is the light coming on and once on the interstate at high speed , then the off ramp slow down, the engine seemed to want to stall as if engine not matching actual speed for a few seconds, then it was ok again. I was out of town and the mechanic that looked at it told me to go to Ford for an update. He tested the tps and said it was ok.
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