Question about Cars & Trucks
Year make and model, and is the fuel pump getting power from the pump relay ?
Posted on Apr 22, 2013
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Posted on Jan 02, 2017
check the connector to the fuel pump for corrosion or loose pins, the fuel pumps of newer cars and trucks are designed to last at least 100,000 miles, when the new pumps quit did u verify they had power to them?
Posted on Mar 09, 2009
Are you sure there is gas in the tank? I "fixed" more than one car that came in for a fuel pump replacement that ran out of gas. If you have gas, check the fuel pump fuse, fuel pump relay, check for power to the fuel pump. check wiring, kinked lines, clogged fuel filter. Sometimes new FI cars are hard to prime if there is air in the system. Take off the air filter and have someone squirt fuel down the throttle body while you crank the engine. If it fires, you know it's not getting fuel, but when it does fire , it may prime the pump enough to run.
Posted on Jun 30, 2009
ok if the fuel pump is energizing and you can hear it turn on then the pump is working fine and you probably have a restriction. i would replace the fuel filter. when you replace the pump did you replace the strainer on the pump? if not then thats where your problem lies. also could be the fuel pressure regulator also. there is a schrader port on the fuel rail try taking a pen and press down on the core to see if fuel squirts out. or connect a fuel pressure guage to the port and see if you have the right fuel pressure. it should run between 35 and 47 psi
Posted on Aug 09, 2009
Is the security light active? If yes it will have to get reprogrammed by the GM dealer as GM has this as a propriatory system... Meaning no one else can work on it.
Posted on Sep 14, 2009
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