Ford F-150 (2009-2014) :: Idle Rough Sometimes Almost Feeling Like It Was Going To Stall Out
May 4, 2015
I have a 2013 with the 3.7 in it with 24,000 miles on it. I bought the truck used with 8,000 on it was a pre-Owned certified and it already had a k&n air intake which I know it's not needed and I would much rather have the factory intake instead.. 7 months ago I took it to the dealer because I noticed at stop lights it idled rough sometimes almost feeling like it was going to stall out so I took it in and they said that the motor was getting to much air and causing it to run like it was and they said the cooler weather was making it worse and said it should get better when it warms up and they said it wouldn't hurt anything... Well I live in Florida and it's been in the 90s and it still idles like crap you can feel the vibration through the truck...
And it's so aggravating and annoying and I wish I had a stock intake that I could install on the truck to see if it fixes the problem but I don't and I've researched the problem and have seen people with the same issues without the k&n air intake and I've also been told that the stock air intake gives the motor just as much air as the k&n so with that being said did the dealer take the easy way out and blame the intake or should they be responsible for installing the factory intake back on since they made it a certified pre-owned with the k&n on the truck? It's been frustrating because I don't know a whole lot about gas motors.. And I'd like to get the problem fixed while I still have warranty ..
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I have a 2011 XLT 5.0 V8 with 133,260 miles. I have extended warranty for the next 12,000 miles...which is great because I drive about 400 miles a month... Anyhow it runs great but for one small issue (hopefully) that has been intermittent.
She likes to idle slightly rough in drive at a stop or very low speed, and in reverse at slow speed. If I don't maintain the RPM it will stall and the low oil pressure light will come on, which I imagine comes on because of the sudden stall.
I first noticed this while backing into my garage in the driveway, It would fluctuate in RPMs and if I didn't maintain the gas it would shut off. I took it to the dealer and all they were able to tell me was the Tranny fluid was low and it would cause it to shut off at incline because a sensor isn't detecting fluid in the tranny. I thought this was weird but being as I have never owned an F150, I didn't know better.
It was fine for a little over a month and it started doing it again at stop lights and backing into my driveway. It has become frequent but there is no issue driving at speed and on the freeway. There is no stuttering or shaking and if it weren't for the fluctuating RPM at a stop and the stalling, it would be hard to tell if there was an issue.
All I can note is that there is a clicking sound under the hood, if I remember correctly the last time this happened I was at a 1/4 tank of fuel like I am now, I also feel like it may be a throttle body issue, or some sort of air sensor, I plan on taking it to the dealer but I figure I would get a more informed answer on the forums.
I also hear this is a common issue with the 5.0s... I purchased the truck in December and since then I have only put 250 miles on it.
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2010 4x4 F150 Lariat 5.4 L, have been working on throttle response problems off and on for a few months. Initially got p0404 codes, and replaced the accel pedal assembly, now graduated to p2135 code, and stall at idle after a highway trip. Wondering if this may be a issue with aftermarket air filter causing misread errors on sensors. Had it to the dealer, with out any real remedy.
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2010 F150 4.6L 2V, 50k miles. Have recently developed an issue with an extremely rough idle with the AC on and trans in Drive. If in park, the idle is high enough that it is much less noticeable. I have cleaned my throttle body, and MAF sensor ? After this , I disconnected battery for about 30mins and let the computer reset. After a long drive today, it is still happening. This engine has the servo controlled throttle body, and therefore no IAC valve that I can identify. I would assume that the idle increase necessary for the AC to be on would come from the servo controlled throttle body itself with no need for an external IAC. The idle in Drive with the AC on will drop to 500 RPM or less and it is very rough. Is there a procedure for a recalibration of the servo throttle body that I could try ?
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My truck has a similar rough idle and I decided to investigate. What my plug gap was supposed to be as I didn't have access to my owners manual at the time. The specs I was given (.041-.047) is what I followed and recapped my plugs .045. The idle improved a great deal.
Now I was wondering and finally got around to checking my owners manual after I read somewhere that the gap for the 5.0 changed between 12 and 13 model years. What I found in my owners manual is that the gap I'm supposed to have is from .049-.053. My plugs were out anyway at .057. I will leave them be at .045 but am wondering why the change from .041-.047 on the 2011 model years to .049-.053 on the 2012+ model years? I assume the engine hasn't changed, so am curious of the thought process.
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2013 3.5 Ecoboost. Starting the truck first thing in the morning, it idles very rough for about 30 seconds and then smoothes out. If I drop it into gear it stays rough as I back out of the driveway. Once underway it runs fine and otherwise runs/idles very smooth for the rest of the day. Doesn't appear to have any other symptoms of spark plugs/boots misfire so I'm thinking it might be something else?
On my old 02 F150 with the 5.4 this usually happened when the Idle air control (IAC) would get plugged up with carbon. I'd clean it and the idle would smooth out. This truck doesn't appear to have one.
Spark plugs are on my list for the near future. 47k on the truck so they are almost geting due. Trying to get my superduty sold before I spend a lot of time on this truck.
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Well it's been 300 miles since Ford applied their "special grease" and put on clamps to eliminate the clunk when slowing and the slipping feeling at take off. Now the clunk is back. Every time at 25 it downshifts and clunks, then once again at 10. Drives me nuts. My service advisor wants me to "log" these visits so we can be more aggressive with Ford to get this resolved. I love the truck, but this is annoying driveline slop. Almost like the splines weren't cut right and Ford is using heavy grease to fill the gaps......developing...
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Ok so I have the 2009 f150 4.6l 2wd. Have random misfire codes. Horrid idle. I replaced all of the spark plugs, coil packs, and even the injectors on 1/3/4. Still codes nothing is better. I'm thinking maybe an intake manifold leak,? I see no real signs but I do hear that little pop pop pop. Now I have a gasket kit for it but I see you can order complete manifold kits with thermostat and gaskets on amazon for like 60 bucks more. The issue is I see none that fit my truck. Is it the same as the mustang? Hate to blow more cash as its adding up.
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I have a 2009, 4x4, 5.4L with 78k miles. The transmission works overall but it seems to shift late and creates a mushy feeling. If you put your foot down, it will downshift and take off so it's not a power issue. As I've read on this forum, mine also searches for the right gear often and overall seems to shift too much. Seems like a computer reflash would fix it as I think it's just the shift timing. Computer reflashed? Is this possible or available from the dealer?
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2012 F-150 5.0 Rough Idle Upon Start up - YouTube
Whenever I first start my 2012 F-150 with the 5.0, it idles rough and if I step on the gas it acts like either an injector is cutting in and out or it's missing. It doesn't really seem like a miss though, more like an injector/fuel issue. What it could be. If I let it sit and idle it won't go away unless I step on the gas and get it > 2500rpm or so.
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2010 F150 ... So I have the tick noise at rpm's 800-1000 at drive through, stops, etc. So I did research on it a few months ago and saw that it might be VCT's but should be able to drive. so I drove it waiting to save money and have it go to a shop. well this past weekend while coming home from work my oil light came on the pressure dropped to zero, I was on the highway so I drove about another mile to get off highway and once I got off my truck died. I had it towed to my house and I thought I blew my motor. So I started doing research here and found that the VCT's AND cam Phaser could be bad. so I replaced my VCT on driver side put it all back together it started and loud knock was gone. then after 5 mins it was back very loud knock!
So I shut it down and took apart the passenger side once I got the valve cover off I found the problem.... The bolt that holds the cam phaser in place snapped off and was riding along the camshaft. So I took that out and extracted remaining part of bolt. inspected my camshaft and it was really messed up. so I bought new Phaser and Camshaft. the camshaft just came in today and I am trying to put it back in. but the hole for the pin in the phaser doesn't line up and I cant spin the shaft to make it line up. should I spin the cam phaser? I marked the chain and the phaser is where it should be on chain, but with that bolt snapping off could that have thrown the timing off so my mark is no good? when I lay the camshaft in place it sits perfect and if I just move the phase over 2-3 links it will all fit together. Should I do that?
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Last week I had the plugs, coils, valve cover gasket and fuel filter done my 2004 Ford Escape when the engine started misfiring and today it started to idle rough at a stoplight and it seemed like it was going to stall but didn't. I had it sit for about an hour and a half and the it did want to turn over like the battery did have enough cold crank to it but it did after a couple of times. It has come and gone for the last couple of hours. No warning lights are one either. It seems pretty close to what it was doing when it was misfiring. What it may be?
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Let me describe this perplexing issue. I have a speratic rough idle problem. When it happens it's almost like the truck wants to stall. Once going the truck is fine. There has never been any acceleration issues, but for a short time the truck would kind of lunge off idle. It hasn't done that for quite some time. I've replaced the fuel filter. There are no vacuum leaks that I know of. I've tried higher octane fuel. I've tried injector cleaner for a month. What should the fuel pressure be and what is the test port located? Is the fuel pump in the tank? If so, whats that big log looking thing behind the gas tank that the fuel lines run to? Also, there are no MIL codes...
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My truck is a 1995 Explorer 4.0 150,000 miles, 5 speed.
Problem - Rough idle : when cold it's worse and will stall and choke a little. When warmed up it just has a rough idle but will not stall and stays at a pretty constant RPM. It's very tolerable when warmed up but still not right. It drives fine once off idle. No black smoke that I can see. Power may be just a little off but I would not bet on it. MPG seems about normal but haven't been on a long enough trip since problem started to tell for sure. Also longer than normal cranking on occasion.
Diagnostics so far : Fuel pressure is at 32 PSI, vacuum off regulator it's at 40 PSI. Not sure about key on only as I don't trust the autozone loaner gauges. You have to fiddle with it each time before it will read. Leak down after 30 minutes was about 4 PSI
No Check engine light ever. KOEO test shows no hard or on demand codes, I get the 111 pass. From CM I get 336 and 45.
336 is EGR related and my looks pretty rusty. I put a vacuum pump on it while running and the EGR held vacuum but had no effect at all on idle, I was expecting it to get worse as I opened the EGR so it may be stuck.
Searched high and low for vacuum leaks by ear, visual and with starting fluid all turned up nothing.
Actions so far : Replaced plugs, wires, IAC, and fuel filter. Cleaned MAF sensor and throttle body plus ran lucas fuel injector cleaner through it.
Next steps : I've got the EGR but it's so rusty I am sure I'll break the tube it bolts to plus I don't know it that alone will cause the rough idle. Will the DPFE sensor and/or EVR create a rough idle yet not turn on the CEL?
Thought about changing the fuel pump and/or regulator but the numbers are not terrible. Agree?
Thought about changing the intake gaskets but don't see any leaks.
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I have an 87 ranger, 2.3 4cyl. 2wd 5 speed. When I start up the truck after it sits for a few hours it will idle fine but then it starts to bog down and wants to stall but after about 5 mins its fine and runs like a champ. I don't know if its a sensor or what.
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I have a 2002 4.6L FX4. When I run the A/C for an extended period (say 15-20+ minutes), it will start to cough and sputter and eventually just die. It will restart but run rough and cough, sputter, die.
If I turn off A/C and let it set a while, it runs fine. No check engine light. Possible EGR problem????
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My 04 F150 has started having a rough idle. While in park the engine will stall out with the A/C off. Also when in drive the truck will idle close to 1000rpm's. I had to the fuel filter cleaned and also the MAF sensor cleaned. Also did a vacuum check on it. Pulled the code and it's throwing a Lean Code. What else should I be looking for?
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I have a 2012 5.0 with about 1500 miles on it. I have noticed occasionally on start up that it feels like it is trying to stall? I give it a little gas and it goes away.
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My car started a rough idle last night.... Pull to stop light, in gear, a/c on #1 and car shudders and acts like it's going to stall..... Went away as I drove a round a bit.....back this a.m. (after the warm up program ran) drove it a bit and was sporadic.....and even went away...then came back.....
Its worse when car is at stop and in 'D'.....little better with a/c off and/or in neutral......it finally threw the CEL today....... I had the fuel pump recall done about a month or two ago, car has 36k+ on it...... Anything I should have the service dept look for aside from what the fault codes might read?
[URL] .....
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So this morning when I went to start my car for work, it wouldn't idle and was misfiring badly, also has a very loud noise coming from the valve cover. The car has under 40k miles on it and is CPO, so it'll be towing it to the dealership today to get check out. The car ran fine on friday when i parked it.
Here is a vagcom scan I did this morning also.
Monday,25,August,2014,06:03:51:26742
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.2.0 (x64)
Data version: 20140212
VIN: WVWHD7AJ2BW201261 License Plate:
Chassis Type: AJ (7N0)
Scan: 01 02 03 08 09 15 16 17 19 25 2E 37 42 44 46 52 55 56 62 72 77
VIN: WVWHD7AJ2BW201261
01-Engine -- Status: Malfunction 0010
[Code] .....
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I have a 87 ranger with a 2.9 and recently it started to act up when i start after its been sitting for a couple hours it has a rough rolling idle and will stall out and a lot of white smoke out the tail pipe and some times a tiny bit of black smoke when revved high....after a about 10 mins of feathering the gas it will even out and runs no problem.... oh and quite a bit of moister comes the tail pipe....and this issue just occurred over night every time before never had an issue like this...
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