96 Blazer was running well till engine started to knock. Swapped engine with good used one now can't get fuel. Switched heater and fuel relays but still no fuel. Pump worked fine a week ago with old engine so it's hard to think it died because I swapped motors.... Any suggestions?
tx Dan

 

Can you hear the pump running?If not then you need to check to make sure that the connectors at the VCM/PCM are fully seated and you have12v to therelay.Most likely you left a connector unplugged or not fully seated or broke a wire during the engine swap by accident,don't overlook something simple since you were running fine before you swapped motors