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3gm30f

David law

New member
Could anyone help me figure out why after I've changed the racor filter, Changed all the brass washers and hoses from the tank to the high pressure pump, checked the return fuel for flow, had engine rebuilt, rebuilt injectors and rebuilt fuel pump, have no leaks anywhere I can see. It's still hard to start, but always does. When Idling whether warm or cold, I have a shudder or miss every 8 seconds? Any help would be appreciated.
 
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