Ford F-150 (2004-2008) :: Runs Rough At 60 Mph?
Mar 12, 2013
Before and after this speed it runs fine, so what could it be. The check engine light is now on all the time.
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Mar 12, 2013
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Ford F-150 (2004-2008) :: 5.4 Engine Has Top End Noise On Right Side And Runs Very Rough
2008 f150 5.4 30,000 miles the engine has top end noise on the right side and runs very rough no codes cam problem ?
View 4 RepliesFord F-150 (2004-2008) :: Runs Rough And Idles Poorly Only When Cold
I recently replaced the plugs cuz I had a rough idle all the time. During plug change when I discovered they had already been changed I found one that had a burned off electrode. Does this mean a lean condition exists?
After plug change it runs smoothly but only after 10 min warmup in our canadian winters. I can drive it when its not warm but seems to have less than full power and idles very badly after driving w/o proper warmup.
Next I changed fuel filter and checked fpdm, it was a little rusty but not bad so i just mounted it 1/4 off steel to prevent further rusting.
Since then I have installed a programmer [diablosport] but found no codes since i had battery disconnected for filter change. no new codes in last few weeks since.
So do I have a lean running cylinder causing this poor cold idle or a rich cylinder? It must be a clogged or dripping fuel injector right?
Ford Ranger / B-Series :: 2008 - Runs Rough With No Power
I just changed the plugs and wires on my 2008 Ranger 3L. Now it runs rough with no power. It was fine before I did the work but I thought I should change the plugs at 215000KM. I used Ford wires but unfortunately I used Bosh platinum plugs and now think I will change to Ford plugs. Do you think the Bosch plugs would be that bad for the Ranger? What is the belt tensioner torx size? I had to move the A/C compressor over to get the #4 plug but had a very hard time trying to loosen the belt.
View 7 RepliesFord - Lincoln :: 2004 - Rough Idol But Runs Smooth When Gas Is Given?
My 2004 Lincoln navigator is very rough at idle but runs smooth when I give it gas. Someone said my VCT may be stuck or bad. I looked at Youtube videos of VCT replacement but in all the videos the VCT's are up front in the valve covers. On the Navigator they aren't there. Where the heck they might be located?
View 2 RepliesFord Super Duty (1999-2016) :: 2004 F250 V10 Runs Rough When Warm
2004 F250 V10, runs good until it warms up whether it's hot or cold outside. While on freeway, it really shakes while cruising, but of you get in the gas enough for a kick down, seems to be pretty smooth. I've changed the coils, and 9 plugs (one wouldn't budge, but the others I took out looked fine) to no effect. Where else should I look? Also, no CEL, and no codes, which seems odd as bad as it feels...
View 11 RepliesFord Super Duty (1999-2016) :: 2004 F250 - Runs Rough At 1500 RPM
So, my truck runs really rough when I am @1500 RPM and lightly feather the gas. I have replaced all coils and plugs. Used dielectric grease. Replaced air filter, replaced ICU, changed transmission fluid. The thing still "shudders" ... 2004 f250 5.4 ....
View 14 RepliesFord F-150 (2004-2008) :: 5.4 Only Runs With Passenger CPS Unplugged
I have a truck that Im working on at the moment that died while driving. The owner states it was running rough and died and wouldn't re start. It had codes P0171, a few misfire codes, P0340, P0344, P0345 and a few other O2 codes. Long story short, the truck would start for a split second and die out immediately. I changed on cam sensor, made no difference, if I unplug bank 1 cam sensor the truck runs. I've ran as many tests as I can and can look at PIDs on my scanner. I am believing its the cam phasers / timing jumped / vct????..... anything I should test? and how?
View 1 RepliesVolvo - V70 :: 2001/ 24T Vehicle Runs Smooth When Cold / Runs Rough With Delayed Acceleration On Warm Up
My 2001 V70 24T runs smooth when cold as it warms up it runs rough with delayed acceleration reaction ....
View 1 RepliesFord F-150 (2004-2008) :: Starts And Runs For About 5 Seconds Then Stalls Out
I've got 200k on my Lariat. Engine was replaced 60k ago. It's in outstanding shape and is driven a lot. Suddenly this morning I start as usual and it runs about 5 seconds then stalls out. Every start, same thing. So it seems I am getting fuel pressure to start but it doesn't last.
I did replace the Fuel Pump Module within the past two years, due to corrosion of the FPM housing. At that time the truck would no start at all. Could it have gone bad already? I'm thinking this must be an electronics failure. It was perfect all day yesterday. 2004 Lariat 5.4...
Rough - Mazda - 626 :: 1999 - Rough Idling But Runs Fine At Higher RPM
This problem has been getting worse over the last 2 years. When the car starts it idles fine at about 1000 RPM. As soon as it warms up, it starts to idle rough, between 500 and 750 RPM. It almost quits running. As soon as you give the car some gas it runs just fine. About 3 weeks ago I got a "Engine Lean" check engine light error. I reset the system and have not gotten the error again. Since then I have: changed the MAF cleaned the EGR (made sure it closes completely and ohm out the coils in the actuator) changed the O2 meter on the exhaust manifold cleaned out the throttle body Ohmed out the air idle controller. What I should check next. I was planning to check the fuel pressure in case it is a fuel system problem. It is a 1999 ....
View 5 RepliesFord F-150 (2004-2008) :: 2006 - Rough Idle
I have a 2006 f150 I just bought after my F250 was stolen. It has about 70k miles. It has been running pretty rough ever since I got it. It finally threw codes so I tried to address all the issues. Changed out a couple coils and all the plugs (motorcraft platinum). The camshaft sensor was also bad. Truck runs much better but still has an idle issue I cant seem to nail down.
I assume its something to do with air intake. It doesnt happen all the time. It runs rough and knocks and sometimes dies. If I give it gas it stops. I read it could be the idle air intake valve, but then I read that this model doesnt have one. I also read that air intake issues dont normally throw codes. Are there any common problems I could look for? Would cleaning the throttle body do any good?
I know the basics, but this kind of thing is tough for me to troubleshoot. You may have already seen me post this problem, but I didnt get much response so I thought I'd try one last time.
Ford F-150 (2004-2008) :: Rough Idle Intermittently?
Ok, so I just replaced the entire timing set (phasers, chains, sprocket, tensioners ect) on my 2004 f150 5.4l about a month ago. I also extracted ALL 8 spark plugs and replaced those with the Champion 1 piece plugs. In addition, I replaced the intake manifold because I did this job when it was 20 degrees outside and I found a crack. Soooo, all that being said I put the whole truck back together and it runs like New. Until about a month later. When the engine gets hot, maybe after about a 30 minute drive or so, it has a really really rough idle until I give it a little bit of gas. Then it clears up. It has only done it 3 times since I put the engine back together. It might go 2 weeks and not do it. No codes. What I could be? EGR? MAS air? Only other thing I can think to say is if you get on it out on the highway, after about 3k rpms it seems like the power drops off quite a bit. Like the engine isn't getting enough fuel. I guess it could be just me, but it just doesnt seem right.. I guess I could try to unplug the MAS air flow sensor...
View 14 RepliesFord F-150 (2004-2008) :: Rough Idle Almost Like A Misfire
I hopped in my truck this morning, fired it up, and it idled nicely. I drove around the corner, and noticed that the truck was barely responding to the throttle. Then things got shaky. It was a very rough idle, almost like a misfire. But I managed to get the gas to respond and got the revs up to about 3K and it seemed to run smooth.
No CEL either. Currently, I have no place to really look at my truck as I don't have a garage, or driveway for that matter. I don't have a scanner that can read live data either. I'm limited in my tools currently as well.
Ford F-150 (2004-2008) :: Bad Vibration Or Rough Idle With AC On
I have 2008 f150 with 5.4 and 54000 miles. It has a bad vibration or rough idle only when AC is on. When AC is off it runs very smooth. Runs great while driving with AC on. Tensioner pulley was moving a lot more than normal when engine started vibrating so i replaced it and the belt but it didn't work. I also checked the other pulleys and they are good.
View 1 RepliesFord F-150 (2004-2008) :: Rough Only At Idle Constantly
Is it possible to have an intermittent injector problem I am having the same problem with my 2004. Its not all the time its rough only at idle constantly. If I keep the rpms up it doesn't do too bad...
View 1 RepliesFord F-150 (2004-2008) :: Knocking When Idling Very Rough
My truck is idling terribly and knocks while doing so, little info is
The truck has 170k miles, I just bought it about two months ago and it was running perfect, drove it to the beach two or three times (4 hour drive) no problems whatsoever. Two weeks ago I noticed it start rocking a bit at idle ONLY when warm, check engine light came on so I ran the code and it said the Cam shaft positioning sensor was bad so I replaced both of those, then the next code I got was for the vct solenoids, replaced both of those and the problem is still persisting. It is odd to me in the fact that when its cold, it runs flawlessly, no problem accelerating/idling/maintaining speed/smoke nothing at all.
As soon as it gets warm it will still do everything flawlessly EXCEPT idle. the idle rpm is around 300-400 and it rocks and knocks terribly.. If i am stopped and I apply some throttle in park or nuetral, just enough to get the rpm up to around 800-900, its perfectly fine. no more rocking no more knocking but as soon as i let my foot off the gas it goes right back to feeling like its going to fly out from underneath the hood.
So my question is why is this? What on earth is going on here? and how do I fix it? And why is there not a manual idle control. Ford place said there was likely damage to the head and recommended a full engine replacement.
Ford F-150 (2004-2008) :: Rough Idle When Put It In Park
An injector stuck open on my 05 5.4 and bent a rod. I had a new rod put in and all new revised Motorccraft injectors. This was about a month ago. Truck has ran great for the past 3 weeks until today I put it in park and it idles real rough, put it in gear and it smooth as butter again? (Once in a rare while it will continue to idle rough in gear for a few seconds but then clears up.) New motorcraft plugs were put in right before it bent the rod. The truck runs real strong other wise. I am about done with ford this pickup has been the biggest pile I've ever owned one thing after another and just when I think its fixed its some other stupid problem. I'll start by cleaning the maf and throttle body. Could it be a bad coil?
View 3 RepliesFord :: Engine Will Rev Up But Runs Very Rough And Lacks Power When Driven
I have a 1994 Ford F-150 pickup with a 4.9 litre fuel injected inline six. Truck ran fine and took me to my destination but after sitting for 4 hours the truck would not start. Engine would turn over normally and could hear fuel pump running (didn't seem to stop) but truck would not start.
I changed fuel filter but truck would still not start. I removed air filter assembly and poured starting fluid in the air intake and engine started but idled roughly. Engine will rev up but runs very rough and lacks power when driven. Also the check engine light stays on.
Ford - Focus :: 2003 Runs Rough At Random Times
My son drives a 2003 Ford Focus with 183,000 miles on it. At random times when he starts the car, the engine runs very rough at idle speed but when he drives away, it runs fine until he slows for a stop sign/turn, etc. and the engine is at idle speed again. When this happens, the engine runs so roughly, that he loses vacuum to the brakes and his brakes stiffen dangerously. The car may not do this at all for a couple of weeks of driving, and when it doesn't do it, it runs beautifully.
Also, it only runs like this if it does it from start-up; it never idles roughly in the middle of a drive in which the car started normally. I have changed the spark plugs and wires, PCV valve, fuel filter, and air filter, but it still goes through this about once a week. I bought the car used just a few months ago and it had just had the valve cover gasket changed because the valve cover was leaking.
Ford - F150 :: 1979 - Runs Rough Like Choke Isn't Clicked?
1979 ford f-150, 460 w/ 4bbl. Carb recently rebuilt by professional, but on cold mornings (in particular) runs rough even after a little warm (just like me), like the choke isn't clicked or clacked (couldn't resist) off. Can the choke flap and mechanism be gunked up, needs some cleaner applied?
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