Blinking check engine light 5.4L
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Blinking check engine light 5.4L
I have searched and am headed to NAPA to get the computer flashed and codes checked...but I'm starting this thread out of frustration. Nobody ever seems to finish their posts and explain what fixed the problem....I will in hopes that the next guy will be thankful. I always try to post what resolved the issues.....to help out.
1997 F150 5.4L with 120k on it......check engine light came on two weeks ago and went off again at next startup.....didn't think much about it, figured
O2 Sensor needed changing soon....
This morning check engine light came on and flashed like a *****.....engine ran rough.....funny smell from tailpipe.....drove 1/2 mile straight home, used wifeys car for rest of morning run.
I am learning from the searches that it is probably a misfire (felt like it)....and that coils can be an issue....but I haven't had this truck long, so I don't really know if it has one coil per cylinder like some others....blah blah blah.
Anyway, I will know more later....but if someone wants to chime in and give their .02 cents...that would be most excellent.
Looking forward to spending this money...not.
Thanks in advance.
1997 F150 5.4L with 120k on it......check engine light came on two weeks ago and went off again at next startup.....didn't think much about it, figured
O2 Sensor needed changing soon....
This morning check engine light came on and flashed like a *****.....engine ran rough.....funny smell from tailpipe.....drove 1/2 mile straight home, used wifeys car for rest of morning run.
I am learning from the searches that it is probably a misfire (felt like it)....and that coils can be an issue....but I haven't had this truck long, so I don't really know if it has one coil per cylinder like some others....blah blah blah.
Anyway, I will know more later....but if someone wants to chime in and give their .02 cents...that would be most excellent.
Looking forward to spending this money...not.
Thanks in advance.
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From: Louisville,Ky.
Yes the 5.4L has 8 coils. COP (Coil On Plug) Sounds like one could be failing. I wonder if the truck has ever had plugs put in it. If you change the plugs, I would recommend replacing the COP boots as well and use plenty of dilectric grease on them too. This will help them seal to the plugs and prevent misfires.
Anyway, when you get the codes read, it should tell you which cylinder is misfiring.
They are numbered this way:
4 8
3 7
2 6
1 5
Front
Anyway, when you get the codes read, it should tell you which cylinder is misfiring.
They are numbered this way:
4 8
3 7
2 6
1 5
Front
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I have heard differing opinions..of course I will wait for codes before deciding....
Do I change just the 1 bad coil or do them all..sounds like it could be spendy...
Will the code tell me if the coil for that cylinder is bad...or could the same code "misfire code".....be the plug/wire/coil or any combination of the 3?
Thanks!!!
Do I change just the 1 bad coil or do them all..sounds like it could be spendy...
Will the code tell me if the coil for that cylinder is bad...or could the same code "misfire code".....be the plug/wire/coil or any combination of the 3?
Thanks!!!
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NAPA won't run the codes but AutoZone will.....NAPA doesn't want us to be mad if the codes don't turn out to be right :O
Is it bad to drive the car in this condition for less than 10 miles?
Thanks....
Is it bad to drive the car in this condition for less than 10 miles?
Thanks....
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UPDATE
Autozone came up with code 0304.....misfire cylinder 4. (you know the cylinder under everything and all the way in the f'in back)
I bought the COP..hopefully the wire is okay....my buddy is installing right now for $75...it is literally -5 degrees wind chill right now....he has heated shop and he does this for a living...
Let you know how I come out...
Thanks
Autozone came up with code 0304.....misfire cylinder 4. (you know the cylinder under everything and all the way in the f'in back)
I bought the COP..hopefully the wire is okay....my buddy is installing right now for $75...it is literally -5 degrees wind chill right now....he has heated shop and he does this for a living...
Let you know how I come out...
Thanks
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Blinking again.....
Waiting for AZone to open so I can get the code read...I hope it's an easier one to get to this time.
Is it fairly common for these to start to go all at the same time?
Thanks
Waiting for AZone to open so I can get the code read...I hope it's an easier one to get to this time.
Is it fairly common for these to start to go all at the same time?
Thanks
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From: SE Texas
Originally Posted by sprinklerguy
Blinking again.....
Waiting for AZone to open so I can get the code read...I hope it's an easier one to get to this time.
Is it fairly common for these to start to go all at the same time?
Thanks
Waiting for AZone to open so I can get the code read...I hope it's an easier one to get to this time.
Is it fairly common for these to start to go all at the same time?
Thanks
JL
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They tell me #4 gets leaked on by the heater core leak....
I hope it isn't #4 again.....
120k miles...I guess it is time. Maybe I should be proactive and change them all so I don't get stuck in a bind everytime...I have chit to do today and this is really holding me up.
I hope it isn't #4 again.....
120k miles...I guess it is time. Maybe I should be proactive and change them all so I don't get stuck in a bind everytime...I have chit to do today and this is really holding me up.
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Joined: Oct 2006
Posts: 4,171
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From: SE Texas
Originally Posted by sprinklerguy
They tell me #4 gets leaked on by the heater core leak....
I hope it isn't #4 again.....
120k miles...I guess it is time. Maybe I should be proactive and change them all so I don't get stuck in a bind everytime...I have chit to do today and this is really holding me up.
I hope it isn't #4 again.....
120k miles...I guess it is time. Maybe I should be proactive and change them all so I don't get stuck in a bind everytime...I have chit to do today and this is really holding me up.
JL
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Code was misfire on cylinder 3......
From the time I left Autozone to the time I got done was precisely 49 minutes.
Runs like a top again....
#3 isn't that bad....I hope next time it is cylinder 1,2,5 or 6
Thanks
From the time I left Autozone to the time I got done was precisely 49 minutes.
Runs like a top again....
#3 isn't that bad....I hope next time it is cylinder 1,2,5 or 6
Thanks
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Joined: Oct 2006
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From: SE Texas
Originally Posted by BURNSTOUGHFORD
How did you get a 5.4l in a 97? I thought they were only offerd in 98 some, and then started big time in 99. Just wondering Please correct me if im wrong
JL