
Re: cummins QSB5.9-30 won't start cold
Got the new filters installed, now with key on engine off I get 3.5 psi. Pressure drops to about .5 psi after cranking 15 seconds. Got the engine started and at idle I have about 1" of vacuum. At 1/2 throttle I have 10" of vacuum. Customer is brining me anothe... Login to read more. ![]()
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