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Re: 99 gmc jimmy starting problem
cold cranking presure is 60-63 psi plug return line 90 psi key off drops down to 61 psi and held after i unplug the return and hooked back up the presure held at 61 psi with key off started presure was 58-60 psi drove 45 mph presure 60-61 psi shut off still leaked down but much slower then before
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