the trucks fuel pump still runs after the truck is shut off we have installed a new relay
Did you buy an aftermarket pump and did you have to install a new plug/connector on the harness to adapt it to the new pump?
yes to your question Mark ,, could it be and oil pressure switch??
Search Chevrolet Silverado 1500 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet Silverado 1500 Experts