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missing on cylinders 5 and 6 missing on cylinders 5 and 6

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03-03-2006, 11:32 PM   #1 (permalink)
yacobco5
 
Join Date: Jun 2005
Posts: 15
missing on cylinders 5 and 6
1990 5.0 misses on cylinders 5 and 6, spark appears ok, spark plug wires on distributor correctly. Could it be a fuel injector or injector wiring problem? New 42 lb injectors.
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03-04-2006, 06:12 PM   #2 (permalink)
Joel50
 
Join Date: Oct 2005
Location: Puerto Rico
Posts: 73
missing on cylinders 5 and 6
Yup...check the connectors for a pulse with a noid lite or a regular 12vdc test light between the pins. Engine running, you should see the light blinking. If it doesn't blink, suggest you check the salt & pepper connectors first and re-check....if it does blink....bad injectors are a possibility, provided there is not a cylinders compression problem.
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03-05-2006, 11:59 AM   #3 (permalink)
FEandGoingBroke
 
Join Date: Sep 2004
Posts: 12,567
missing on cylinders 5 and 6
Common sign of poor injectors... probably fouled or just plain bad...
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