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Check engine light on?

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

Thank you for the donation,

Often it is the case that with later model cars you find that generic scanners are not 100% compatible, as I don't know what was re programed exactly, more than likely it will be fuel delivery parameters, you may have to try a genuine Ford scanner first, and if this is not the answer I would contact the company that did the re programing and ask their advice on what is the best system to use to access any new imputs that they may have made.

Mark (mhpautos)
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
SKIDS86
  • MEMBER
  • 2 POSTS
Mark,
Thanks for the prompt answer, I appreaciate it. I will take your advise. I was under the impression that any scanner that was obd2 compliant would read trouble codes, but the scanner I have iis about 8 years old and they have changed dramatically since then.
Happy Holidays, Pat
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
SELENECOOPER
  • MEMBER
  • 1 POST
  • 2005 FORD F-150
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 85,000 MILES
My battery went completely dead and now my service engine light soon is on. The light was not on before the battery went dead. I got a jump and now it starts fine the light just stays on. What could be the problem?
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Wednesday, September 9th, 2020 AT 5:27 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Go to an Auto Zone have code read then post number and have the light turned off. If it does not reset then your good.
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Wednesday, September 9th, 2020 AT 5:27 PM (Merged)
Tiny
TCOOK1841
  • MEMBER
  • 1 POST
  • 2005 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 27,300 MILES
Hey Guys,

My F150 seems to be running fine but the check engine light came on today. It stays on continuous. I cant figure it out. I checked the oil which seemed a little low but no oil light came on. The temperature seems normal also. Can u help?
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Wednesday, September 9th, 2020 AT 5:27 PM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Usually when that light comes on it means a problem with an emissions related item. What I would like you to do is pay attention to your fuel economy and check your gas cap and make sure it is tightened untill you hear those clicks several times. I know it sounds stupid, but your engine light will come on if. You gas cap isn't tight. Crazy huh? Let me know what happens
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Wednesday, September 9th, 2020 AT 5:27 PM (Merged)
Tiny
NASCDA
  • MEMBER
  • 2 POSTS
I had this same problem with my 2005 F-150. After talking to my mechanic and checking with Ford, they said that it besides the gas cap issue, it could be that I had some bad gas in my tank. If I allowed it to run through approx. 3-4 tanks of gas in a mixed use of running (i.E. Highway, surface streets, and freeway) it would turn itself off once it had flushed the problem. This worked, after 3 tanks of gas the light went off and stayed off.
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Wednesday, September 9th, 2020 AT 5:27 PM (Merged)
Tiny
LADYCJ
  • MEMBER
  • 1 POST
  • 2005 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 105,000 MILES
CEL stays on, no oil leak but is burning quite a bit. Sometimes trucks idle rough at stop but will smooth out if given gas. I already replaced spark plugs, fuel injectors and spark plug coil boots. Then had oil pressure check done-code 68 warm 15 (not sure what that means but was told oil not getting to the top of engine. Then removed front cover to replace tensioners, phasers, #5 cop for RF interface to bank #2 solenoid, coil asy and had oil changed. They also performed vital fluid analysis & inspected fuel/air intake sys. Have taken truck from one dealership after another and still can't find problem. Tired of spending money and problem still there. Please help!
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Wednesday, September 9th, 2020 AT 5:28 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Then had oil pressure check done-code 68 warm 15 (not sure what that means but was told oil not getting to the top of engine. You need to have the oil pressure check to determine why-Is the engine knocking?

No oil leak and burning quite a bit-its burning in the combustion chamber-Check the engine compression to determine if its valves or rings.
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Wednesday, September 9th, 2020 AT 5:28 PM (Merged)
Tiny
FX4PERSON
  • MEMBER
  • 1 POST
  • 2005 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 86,000 MILES
I brought my truck to the Ford dealership for an oil leak and check engine light, but it was running fine. They fixed the leak and the check engine light is off, but now when I hit the accelerator the there is a slight jerking that almost feels like its not getting fuel right. This wasn't happening before. They said they had to reset the Keep Alive Memory and that the truck has to relearn some things and that this could be the reason for it. They said if it continues after a few days to bring back. Does this make sense to anyone?
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Wednesday, September 9th, 2020 AT 5:28 PM (Merged)
Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
You may have got the code P0603. Internal Control Module Keep Alive Memory (KAM) Error.
When resetting the memory, computer have to relearn how to make small adjustments to the fuel mixture and other functions over time as the vehicle accumulates miles. It may take awhile to relearn the driver's habits so the transmission may not shift exactly the same as before. It may be a glitch or a problem with the computer'
drive the car few days and see if the light comes back or the jerking will go away. If the light comes back or the jerking persist, take the car back so it can be diagnose again.
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Wednesday, September 9th, 2020 AT 5:28 PM (Merged)

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