Question about GMC Yukon
If you have recently worked on the vehicle before this problem, maybe ran out of gas and tried cranking it before u realized it. Chevrolet has a safety that shuts the fuel pump off to keep from overloading the intake with fuel. It also kills the fire too.
Posted on Nov 05, 2012
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Posted on Jan 02, 2017
The wire should not be hot until the relay is triggered. The relay does not get triggered until the ignition key is turned on. It will run for 3-5 seconds or until the system pressure it at max.
Posted on Apr 27, 2009
from the sounds of it its going to be one of 3 things 1) the injector is bad or 2) there is no power getting to the injector 3) bad relay switch.
1) to find out if the injector is good. pull the injector out and with some wire ground one side and touch the other side to your battery, every time you tap the wire to the bat you should here the injector click..
2) if injector is good get a test light and test to see if power is coming out of the wires that go to injector( on some vehicles you have to have the motor turning over befor power is sent through wire, so have someone turn the key while you check the wires with test light)
Posted on Aug 15, 2009
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