This is topic Code reading in forum Tech Talk at Northern California Ford Owners .
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Posted by SL0BRA650 (Member # 10274) on
:
Showing these codes on A 2002 v6 mustang. I just changed the spark plugs not too long ago, maybe 8k mi. What's yall opinions? Thank you.
Posted by Blind (Member # 3052) on
:
vacuum leak or bad coil, start by trading the coil for number 4 to a different one.
Posted by SL0BRA650 (Member # 10274) on
:
quote:
Originally posted by Blind:
vacuum leak or bad coil, start by trading the coil for number 4 to a different one.
Thanks for your input, I forgot the mention that, I have replaced the coil packs when I replaced the spark plugs.
Posted by Ray94GT (Member # 13285) on
:
check spark plug gap and coils or wires.
Posted by Blind (Member # 3052) on
:
quote:
Originally posted by SL0BRA650:
quote:
Originally posted by Blind:
vacuum leak or bad coil, start by trading the coil for number 4 to a different one.
Thanks for your input, I forgot the mention that, I have replaced the coil packs when I replaced the spark plugs.
then it's a vacuum leak
Posted by hurting your feelings (Member # 13641) on
:
quote:
Originally posted by Blind:
quote:
Originally posted by SL0BRA650:
quote:
Originally posted by Blind:
vacuum leak or bad coil, start by trading the coil for number 4 to a different one.
Thanks for your input, I forgot the mention that, I have replaced the coil packs when I replaced the spark plugs.
then it's a vacuum leak
Or a bad fuel injector ,or a burnt valve, or a leaking head gasket,or a cracked head.
Posted by SacStangDriver (Member # 8304) on
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only three things cause a misfire. fuel/spark/compression.
Posted by NK2186 (Member # 12319) on
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quote:
Originally posted by SacStangDriver:
only three things cause a misfire. fuel/spark/compression.
yep
Posted by hurting your feelings (Member # 13641) on
:
quote:
Originally posted by SacStangDriver:
only three things cause a misfire. fuel/spark/compression.
A vacuum leak can and will cause a misfire.
Posted by SL0BRA650 (Member # 10274) on
:
Pulled plug #4 out.
Posted by SL0BRA650 (Member # 10274) on
:
Got it diagnosed by a shop. Said that #4 fuel injector wasn't functioning. Changed the injector today. And codes still showing up for #4 misfire. Any thoughts? There is spark going towards the spark plug.
Posted by hurting your feelings (Member # 13641) on
:
quote:
Originally posted by SL0BRA650:
Got it diagnosed by a shop. Said that #4 fuel injector wasn't functioning. Changed the injector today. And codes still showing up for #4 misfire. Any thoughts? There is spark going towards the spark plug.
Take it back to them a tell you will not take the car back in till the misfire is fixed.
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