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Check engine light on?

Tiny
TIRRELL45
  • MEMBER
  • 2007 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 54,000 MILES
My battery died and I got a jump-start. After it started the light came on and has stayed on.
Wednesday, November 3rd, 2010 AT 11:42 AM

31 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Most likely due from the weak battery, you can follow this guide to get the codes

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

post the code(s) you get here and i will follow up.
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+1
Wednesday, November 3rd, 2010 AT 10:27 PM
Tiny
CHRISCASTRO
  • MEMBER
  • 1 POST
  • 2006 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 108,000 MILES
Engine light currently on. In cool weather truck runs well, but when it gets hot the truck really surges and sputters. Any ideas?
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Wednesday, September 9th, 2020 AT 5:24 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check engine light:

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on.
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Wednesday, September 9th, 2020 AT 5:24 PM (Merged)
Tiny
REDHAT9
  • MEMBER
  • 2 POSTS
  • 2006 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 43,000 MILES
Trouble starting. After about 3 cranks of the engine it starts after the 3rd. Check engine light recently came on because of this. What could issue be?
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Wednesday, September 9th, 2020 AT 5:24 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Since the engine light is on the best thing to do is just take it to a local auto part store and ask them to retrieve your vehicle's trouble code(s). This should pinpoint the culprit.
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Wednesday, September 9th, 2020 AT 5:25 PM (Merged)
Tiny
REDHAT9
  • MEMBER
  • 2 POSTS
Had to end up doing that.
Truck still runs fine.
Error code turned out to be a mis-fire code.
Have to replace the plugs and hope none of them break before it its done.

Thanks for the response
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Wednesday, September 9th, 2020 AT 5:25 PM (Merged)
Tiny
BANDDAD
  • MEMBER
  • 2 POSTS
  • 2006 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 126,477 MILES
After you start the truck, when you shut it off, you have to wait about ten second for the check engine light to come back on. Will not pass inspection.
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Wednesday, September 9th, 2020 AT 5:25 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
I'm not sure I understand. Is the light off when the engine is running?
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Wednesday, September 9th, 2020 AT 5:25 PM (Merged)
Tiny
BANDDAD
  • MEMBER
  • 2 POSTS
The check engine light go off when it running.
What I have found out is that this will happen after you rest the the computer or unhook the battery.
Until the computer goes through all it test.
Drove the truck all day yesterday and have two more incomplete, hopeful it will clear today.
Thank You
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Wednesday, September 9th, 2020 AT 5:25 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Have you checked for codes?
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Wednesday, September 9th, 2020 AT 5:25 PM (Merged)
Tiny
P SCHILLER
  • MEMBER
  • 2 POSTS
  • 2006 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
5.4 liter ford engine light on with engine icon. Does not overheat. Oil pressure guage shows correct pressure. When running to long engine will shut down. What could be wrong?
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Since engine light is on best thing to do is retrieve trouble code(s) that are stored by vehicle's computer, most local auto part stores will do this for free of charge. Post the code(s) you get and I will follow up
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
P SCHILLER
  • MEMBER
  • 2 POSTS
Thanks. I will get back to you
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
BUYHARDWARE
  • MEMBER
  • 1 POST
  • 2006 FORD F-150
  • 4.2L
  • 2WD
  • MANUAL
  • 52,000 MILES
Did a rear brake job this weekend. When got done the engine light was on
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
The place to start is by reading the diagnostic fault code. That will indicate the circuit or system that needs further diagnosis. Many auto parts stores will do that for you for free.
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
JEREMYTR
  • MEMBER
  • 2 POSTS
  • 2006 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 45,000 MILES
My truck was fine, I pulled into local car wash and washed it off including underneath because of salt and grime being winter and all. I got in to leave started the truck put it in drive and truck did not want to go, check engine light came on, checked error codes and I have p0731 and p0732. Any ideas?
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
KRSKI
  • MEMBER
  • 6 POSTS
According to my Actron scan tool the Code 731 is a Gear 1 ratio is incorrect. Code 732 is a Gear 2 Ratio is incorrect.
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
JEREMYTR
  • MEMBER
  • 2 POSTS
Thanks Krski, I should have mentioned that I know what the 2 codes are. I just don't know why 1st and 2nd gear quit working at the car wash. Is there something that could have come unplugged or failed that is simple and I'm overlooking. If the speed sensor went bad would this happen? Being that the truck is just out of warranty I was hoping to find something that I could fix.
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
KRSKI
  • MEMBER
  • 6 POSTS
The car wash may just be a coincidence. Although the wire harness going to the tranmission may also have shorted from the water spray. IDid you try to clear the code and see if the MIL turns back on. Are you having any apparent problems with the transmission. I have a feeling that it is an electrical bug.
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)
Tiny
SKIDS86
  • MEMBER
  • 2 POSTS
  • 2006 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 57,000 MILES
I have a 2006 f-150 that was purchased recently and my service engine light appeared on in route from work the other day. I have a obd2 engine checker that has been useful for many years, but it will not work on this truck, it flashes 8s (malfunction) when attempting to scan. The truck has a intercooled roush supercharger installed on it and I know the pcm was sent to them for re-programing as part of the supercharger install. I'm wondering if this has anything to do with the issue or is the truck running off a different system that my scanner is not compadible with?
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Wednesday, September 9th, 2020 AT 5:26 PM (Merged)

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