Ford F-150 (2009-2014) :: Check Engine Light Intermittently Comes And Goes
Jan 5, 2012
Purchased certified pre owned 2009 f150 may/2010 24,000 mile. The check engine light intermittently comes and goes. It seems that its either cold temperature or related to filling the gas tank. The first time it appeared I drove 100 mile then the truck sat over the weekend and went back off when started. The second time had serviced for the check light and the dealer diagnostic pin pointed P0304, P0305, P0300 and P0316 and replaced cyl 4&5 coils.
Prior to the replacement of the coils the truck averaged 18.2 mpg since the repair the mpg dropped to 17.6 and now at 17.2mpg. Had the truck in again and the light was on when I made the appointment but went back off when I went to the dealer. They said the reset the computer. The light twice has since went on and then back off after a couple days. The only observation is that the outside temperature on both occurrences has been below freezing and that I had filled up the tank.
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I bought a certified 09 F150 Platinum a few months ago and after 4 trips to the dealership service department, I continue to have a problem with an intermittent engine light. The 1st time they replaced the o2 sensor. The second time they said a connection was loose to the sensor and repaired that. The 3rd time they replaced the PCM and catalytic converters. The 4th time, they replaced the o2 sensor again saying it was a new part that had been redesigned. When I stopped for fuel on the way home, the light came on again and has cycled on and off ever since.
When I called after the 4th time, the service guy said Ford engineers said I was getting bad fuel. I buy fuel from many places just like everyone else in Florida. I use 87 octane as recommended in the service manual mostly with 10% or less ethanol. The dealership service dept has said they have been working with Ford engineers directly but can't seem to get it fixed. The truck seems to run and perform fine. The only constant predictable thing about the engine light is that it will always turn off after the truck goes through the carwash!
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My 2009 f150 5.4 v8 went from 18 MPG to 13 MPG and the check engine light is on?
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2010 F-150 5.4L 3V gas, 6 speed auto, 2WD.
I got a Bully Dog GT Platinum Gas with plans to purchase a tune from 5starturning. Was messing around and loaded the built in 05-10 Ford Gas tune in Bully Dog... all went well.
Take it for a drive around and next thing I see is my check engine light is on so back to the house and revert back to the factory file... again, all went well.
No such luck; still have the check engine light and the Bully Dog says there are no DTC codes. Needless to say, I'm a bit freaked out.
I have tried uninstalling the Bully Dog tune and reverting to factory file and still no luck.
I think I would feel better about it if I could just find some comment saying "this is common just unhook the battery and reset and go on your merry way".
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After about 5 miles from my normal place to purchase fuel, My truck bagan to run bad and the check engine light kicked on. Mileage dropped to about 8 MPG. This morning, the truck would not start and after 2 can's of dry gas, I was able to start it (barely).
I stopped at the place where I purchased fuel and at least they admitted that they has to shut down yesterday, stating they received a bad batch of fuel from their source.
Now the fun begins...How do I get the "bad gas" out of my truck?. I now have about 1/4th of a tank. I tried to run a line to siphon the gas and I can not get a line far enough into the tank.
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2011 eb just turned 36k. Today on breezeway it shuddered like it swallowed a bird, and check engine light flashed on. Went to see customer left and light was off. Back on breezeway and shuddered on entrance ramp so this time I stayed into it so either there's a light that will stay on or just launch it and this time the dealer will have something to fix that they can diagnose. Check engine light is on its fine as long as I stay out of the pedal. Still have 8 months left on power train warranty but what am I looking at for a diagnose, there is definitely a problem now. What the dealership should see?
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He has a 2013 F-150 XLT with the Ecoboost. He has 29,000 miles on the truck.
He is ~1,300 miles into his trip; and has about another 4,500 to go! On Friday, his check engine light came on (while towing). The next day it went back off. Yesterday, the light came back on (while not towing this time). He took the truck into a Ford Dealer in Rapid City, SD this morning. The CEL light was still on this morning when he arrived at the dealership. The dealership said the code is P0299 - Turbo Underboost.
They said they've run tests and can find nothing wrong. Naturally, he is not very happy being this far from home with 3 more weeks of vacation left and his truck acting up. Especially since the CEL light is on but the dealer can find nothing wrong. I'd be puckered-up too!
Experienced this Turbo Underboost condition? What was the cause? How can the CEL light be on but the dealership not be able to find a problem?
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Truck: 2009 F-150 Lariat SCrew 5.4 4x4 with 6.5" bed
For the last few years, I've had this intermittent problem where the service engine light (wrench icon) will pop on and the truck will go into limp home mode. While it's in this mode, all of the indicators on the dash freak out. Low fuel warning will come on, temperature warning, low battery voltage, etc. Turning the truck off and back on (sometimes a couple times) is enough to get it back to normal, albeit with a check engine light that needs to be cleared. It's happened infrequent enough that I've just been dealing with it. I got the codes a couple years back, but there wasn't much information available on what the potential causes might be. The Checker Auto parts database suggested one might be related to a wheel speed sensor.
Well, this afternoon it happened again, and I was near an O'Reilly, so I took it in to pull the codes. There were 9 total in the system; 5 of which were unique:
B0025
B00D5
U0073
U0100
U0253
They didn't have any information on what was causing them. What could be causing this. I'm getting sick of having to clear the check engine light and worry about the truck falling into limp home mode when I'm at intersections.
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I have a 2009 ford f150 4.6l 3v v8 standard cab with about 53k miles on it.
Recently the check engine light came on so i went to autozone to have the codes pulled for free, it says i have a small evaporative leak.
They said may be the gas cap, but the thing is, i have a quick fill cap that came in stock with truck so the gas cap isnt even needed.
I've looked under the hood, and noticed that there is little pool of oil on top of the valley of the engine on the passenger side of the engine, could it possibly be the PCV hose that is bad and be related to the evaporative leak code? or its unrelated and i have a bad gasket for the valve cover?
It isn't affecting the performance of the engine,.. yet. I have a road trip for my work coming up very soon and i wanted to try to fix it before then.
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For the last few months my truck has been throwing an intermittent check engine light due to the same code every time - P0171. The dealer has allegedly checked everything and has given me the "We have done all we can do" speech. Lead tech even suggested that since today's fuels have alcohol in them, that a check engine light would be normal. The truck has been in the shop 3 times with no success or even remote possibility of what the problem could be.
The check engine light has since gone from intermittent to constant and comes back on after 5 drive cycles after clearing with an OBD2 scanner. Also, I'm now getting a P0174 code.
Personally, I think they're trying to blow me off because I'm a few months and about 2k miles away from being out of CPO warranty.
Truck is a 2013 F150 Super crew 2wd 5.0 with about 45k miles.
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I took delivery of my 2012 FX4 Eco in January and about a month or so later I began experiencing a loss of power and the check engine light would come on then go off again. This happened the first time in Houston traffic one day so I was pretty concerned needless to say but then it cleared itself shortly thereafter. However, heading back home it occurred again on the highway while I was trying to pass and she just didn't have the power. I took it to a Houston dealer late in the afternoon before I left but no codes were found and when I got it back to my local dealer it was determined the left side catalytic converter was bad and it was subsequently replaced. Well, it happened again and it's back in the shop while I am offshore so they have plenty of time to take care of it.
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2010 F150 XLT 4.6 3 V
No leaks
New pads and rotors
Intermittent BRAKE (red) light in dash , no other symptoms
Brakes work fine, mechanic is baffled
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Intermittently blinking check engine light in a 2003(?) Ford Escape. I received a call from my fiance, who's about 45 minutes into a two hour drive. On the interstate, her check engine light started blinking, so she pulls off the interstate to a gas station (the light was blinking for maybe five minutes before she could stop, according to her). After she was off the interstate, but before she had turned the engine off, the blinking stopped.
She called me, and I looked up and directed her to an AutoZone about a half mile from where she was. Told her to drive there, and have them to try to read any codes from the engine. She drives over, engine light stays off the entire time. They hook up the reader, and there aren't any codes. My question is, if the check engine light stops blinking, and there aren't any codes for the reader, is the car safe to drive, or will she destroy the cat if she keeps going? Also, it's raining, if that matters for any reason.
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Have 1994 F150 with 5.0L engine. Check engine light, intermittent on due to overheated O2 sensor. Replace sensor, light goes off. The sensor will last longer in cold weather but will fail with same code. Is the overheating due to an electrical problem from the ECU or ambient tempreture. Would like to sell truck but don't want to hand the buyer a dozen O2 sensors.
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I have a 2011 F-150 Supercab 4x4 and the brake warning system is starting to drive me nuts. A couple of months ago the warning light came on along with a message to check brake system. I didn't find anything wrong, even flushed the hydraulic system. all seemed OK. Now the warning came back on, the message center will reset and the warning light will reset after shutting off the truck.
I can drive in city/town and the warning does not come on. But if I drive open road for about 30 miles with out using the brakes I get the warning again. I'll reset the message center and it'll clear, then about every 10 miles it chimes and shows to check brake system. It is strange that that I can drive hundred of miles in town using the brakes and not warning but get on the open road and not using the brakes I get the warning after 30 miles.
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Just had my lexus dealership do the ELF recall. While it was in there I had them check to see why my check vsc light comes on randomly which sets off the check engine light.
They came back and told me that my water pump is leaking, what are the future problems of a leaking water pump?
They said the check vsc light is coming on, in their words is "found center y pipe, gaskets leaking at front pipe, may still need to replace converter pipe." So what does that mean and what do I need to do?
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I have a 2013 F150 6.2L and it wont start. It was running great and when I drove it around the corner it just shut down no clunk no warning just bam shut off. I had a engine code P0355 ( which indicated cylinder 5 coil malfunction). changed the coil and it will not fire the engine code has gone away but it will still not fire. I changed the oil just to be safe and no metal shavings in it.... Turns over just fine but will not fire. I added more fuel just to be safe ( thinking maybe I had bad fuel but that didn't work either.
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2009 F-150 FX4 5.8 .... Had a couple days of 20's temps, started truck last night and I have the brakes symbol and ABS light staying on, with the message "Check brake system" and the traction control symbol alternating back and forth. On a 16 mile trip, they all went out just once, for about ten seconds when I restarted at the gas station. Then came back on. Brake job done within the last two years by previous owner at the dealership.
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My check engine light comes on intermittently, fuel consumption normal. I have not had any noticeable performance issues. I took it to O'Rielly's for a scan but they could not establish a connection to get a readout. Is there a special scan tool needed? The on board Lan Monitor shows EMV codes below, are they meaningful in any way?
Code Sub-code
01-DC 190-38-5
01-D5 190-52-F
01-D8 190-35-1
01-DB 190-11-F
01-DB 110-21-2
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2000 Dakota, 4.7 V8 ... The 'CHECK GAUGES' light comes on intermittently. As soon as it comes on, the voltmeter gauge drops to zero (it is a brand new battery); the temperature gauge does flip flops; the truck dies right now. Walk home and come back later, and it starts up again. When you get home, you sure don't feel secure in taking it on the road again. The shop checked it and of course there was nothing wrong when they had it Where do I start the troubleshoot? Is it computer or?
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I have a 2004 Accent GS. It is an automatic. I have had it for almost a year.
In early November, the check engine light came on when the temperature dropped drastically and it went off when it warmed up a bit about 3 days later. Since then it seems to come on randomly and stay on for a few days then go off (usually around once-twice a month). Then in late December I noticed that the car had trouble starting after I refueled it, the first two times I though it was because I had let the fuel get down too much. Now every time I fuel up it does this. But just the first time turning on the car and no other time after that.
The check engine light had not come on again for almost a month, and then about a week ago it came on again. I double checked all the fluids and the gas cap but that's about as far as my knowledge of cars goes. When the light has come on I have not really noticed any handling differences. However since I need to put the car through an inspection very soon it is now concerning me a bit more. What could be causing the check engine light to go on and off?
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