Got a 92 S10 Blazer 4.3 Vortec with CPI. will start with priming but wont stay running. Replaced pump (x2), filter, spider (x3). Third spider got it started and ran ok for 20 minutes. Shut off to cool down and now wont restart without primming but wont stay running again. First spider was leaking through the regulator. 2nd wouldnt do anything and 3rd ran a while and quit. Normally I would not waste time or money on a car this old but it is in fantastic shape and all works (except the motor).

Your pressure raglan can be bad which might be underneath your intake depending what model engine you have or it can be your feul pump is bad lock at your vin # and see if you have vin #z or vin # w the vin z is a low pressure feul pump vin w is high pressure eulogy pump it also can be bad relays can cause that too. I hope this helps Your pressure raglan can be bad which might be underneath your intake depending what model engine you have or it can be your feul pump is bad lock at your vin # and see if you have vin #z or vin # w the vin z is a low pressure feul pump vin w is high pressure eulogy pump it also can be bad relays can cause that too. I hope this helps