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View Full Version : What is the hot wire on the fuel pump on a 1994 chevy 1500 5.7


keith26
Jun 11, 2010, 07:43 PM
My fuel pump isn't coming on I put a new fuel pump relay in but it still won't come on I'm going to try to find out if the fuel pump is bad so I'm going to run a hot wire to it and see if it comes on but I don't know witch wire is the hot wire on the fuel pump

biff26
Jun 13, 2010, 06:01 PM
Gray wire also check the ground wire for the fuel pump (black)