Join Date: Feb 2010
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A common problem is a failed diaphram in your lift pump which will also cause air locking in the injector system due to air being drawn in through the failure. This likely won't happen if the fuel supply is higher than the injector pump, but will cause lube oil dilution. Try disconnecting the supply line from the supply tank and pressurise the line with an air pig and check for leakage.
Hope this helps,
Cheers, Dumah, Halifax, NS
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