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MISS ON CYL. 2 AND 5
1990 Ford F-150
August, 23, 2013 AT 2:54 PM
4.9 ltr. Straight 6 missing on 2 and 5 cyl. Good compression, fire, gas, timing and new computer. Pulled a code 81, air management 2 circuit failure. Any ideas because i've run out. Billy
FOUND 354 RELATED QUESTIONS
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August, 23, 2013 AT 6:09 PM
Faulty distributor cap, vacuum leads check these first.
August, 26, 2013 AT 10:34 AM
Replaced distributer cap, rotor button and all vacuum leads seem to be ok. Still have a dead miss.
August, 27, 2013 AT 3:18 AM
Do you know what the spark voltage is, do you have a good hot blue spark?
August, 27, 2013 AT 11:36 AM
I have a blue spark on all cylinder's.
August, 29, 2013 AT 2:45 AM
I feel that there must be a vacuum leak affecting these cylinders, ensure that this is not the case first.
to post a reply.
Cannot find any actual specs as to how much compression i should have
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