Byoung1330
Full Access Member
I have a 04 tahoe 5.3 flex. Changed fuel pump out about a year ago. Twice first one had bad check valve. Anyway I was bored today an put pressure gauge on to check psi. Well every video I see they pull fuel pump relay let it run out then hit Schrader with screw driver an relieve pressure. Well mine won’t stop. When I hit Schrader with screw driver it won’t stop coming out til I stop. No fuel at vacumn line to fpr. Also when running fuel pressure jumps up when I pull vacuum line to fpr so I’m guessing it’s ok. Anyone else ever seen this or is this normal ?