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weak spark - no start 200

posted by  macs70GLT on  Thu Oct 21 02:02 CST 2004
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last visit: Fri Jul 2 07:33 CST 2010
[RELATED]

I am having starting problems again. It's happened several times over the last 10 months. Fuel pumps both run when jumpered. New relay. Good 25 amp fuse in watertight holder. Had the fuel pressure checked last Spring and it was good. Last night had my son crank it while I held a new spark plug grounded to the exhaust manifold. It had a weak spark.
Would a weak spark cause the system to not deliver fuel? Other than the cap, rotor, & wires, what should I check for weak spark?
My next step will be to try starting with pumps jumpered.
Thanks for the help.

Mike
1988, 240, 217K & usually running!






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