UPDATE: Hard starting Cummins ISM
Good Morning everyone! Cummins ISM. 95,000 miles. Just had it serviced, replaced water separator, filters etc. including Allison transmission service. Generally used Speedco for service but tried out ...
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Thanks everyone so far. You've verified my suspicions. Air somehow leaking back into the fuel was my initial thought. I've only driven it about 8 miles since the service..I;ll repurge the system today and see if that helps....Dennis
