random misfire

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Old 11-22-2013, 10:07 PM
FF301's Avatar
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random misfire

UUHHHH/GRONE - ok, plugs only have been in for 2 months and now I'm having random misfires. it only thru a code once - #5 misfire
brother in law used truck and filled it and added the at the pump fuel cleaner and that's when it started but ive run 2 tanks thru now and still doing it.
going to tear into it sat morning, any idea's ?
truck has 140,000 so maybe a COP ?
some times the check eng lite blinks but does not store any codes
 
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Old 11-25-2013, 01:12 AM
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Originally Posted by FF301
UUHHHH/GRONE - ok, plugs only have been in for 2 months and now I'm having random misfires. it only thru a code once - #5 misfire
brother in law used truck and filled it and added the at the pump fuel cleaner and that's when it started but ive run 2 tanks thru now and still doing it.
going to tear into it sat morning, any idea's ?
truck has 140,000 so maybe a COP ?
some times the check eng lite blinks but does not store any codes
Which plugs did you go with? Can make all the difference in the world with these engines.
 



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