Hello everyone. New to the forum. I know that everyone "new" needs help...lol, no difference here!
I just replaced my fuel pump. When I went to wire up the new harness, I discovered that the wiring was kind of "rigged up". There were the standard wires coming from the factory wiring (gray, purple, black, black/white), but there was also a wire running from a kill switch under the dash to the gray wire (the kill switch is wired from the fuel pump fuse in the engine compartment fuse and relay box).
When I first bought the tahoe, I figured that the kill switch was a theft deterrent since i bought it from a bad neighborhood. After driving for a while, I figured out that wasnt the case. Sometimes when I shut the vehicle off, the engine keeps running and I have to use the kill switch to shut it off. So something in the electrical system is messed up causing the engine to stay on intermittently.
So, when wiring the new fuel pump, I bypassed the gray wire all together since apparently the wire from the kill switch controls power to the pump. But now, the pump wont turn on at all when I turn the key forward.
I have the purple wires (sender power) connected, the black and black/white wires (pump ground, sender ground) soldered together and bolted directly to the frame by the pump. and I have the power wire from the kill switch connected to the gray wire (pump power).
so...why is the fuel pump not turning on? any thoughts?
Thanks!
I just replaced my fuel pump. When I went to wire up the new harness, I discovered that the wiring was kind of "rigged up". There were the standard wires coming from the factory wiring (gray, purple, black, black/white), but there was also a wire running from a kill switch under the dash to the gray wire (the kill switch is wired from the fuel pump fuse in the engine compartment fuse and relay box).
When I first bought the tahoe, I figured that the kill switch was a theft deterrent since i bought it from a bad neighborhood. After driving for a while, I figured out that wasnt the case. Sometimes when I shut the vehicle off, the engine keeps running and I have to use the kill switch to shut it off. So something in the electrical system is messed up causing the engine to stay on intermittently.
So, when wiring the new fuel pump, I bypassed the gray wire all together since apparently the wire from the kill switch controls power to the pump. But now, the pump wont turn on at all when I turn the key forward.
I have the purple wires (sender power) connected, the black and black/white wires (pump ground, sender ground) soldered together and bolted directly to the frame by the pump. and I have the power wire from the kill switch connected to the gray wire (pump power).
so...why is the fuel pump not turning on? any thoughts?
Thanks!