Can anyone identify these connectors and fuel lines from on my pump assembly?

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10-21-2008, 02:27 PM
Yeajimi

Can anyone identify these connectors and fuel lines from on my pump assembly?

Hey guys, I've grabbed a L33 out of an 05' silverado for a project swap. I am trying to figure out the fuel and evap lines but the Haynes manual has little/no information.

http://i121.photobucket.com/albums/o...i/HPIM0956.jpg

http://i121.photobucket.com/albums/o...i/HPIM0957.jpg

Basically I need someone to identify what is what down there. From what I've gathered I have a returnless fuel system, where the filter & fuel pressure regulator is located in the pump assembly in the tank. If anyone can fill in the blanks it would be very appreciated, as I've run into a wall with this at the moment.
10-21-2008, 03:58 PM
GasGuzzler

#1 goes to the EVAP canister
#2 goes to the EVAP purge valve on the engine
#3 goes to the PCM for fuel tank pressure
#4 is power and ground for the pump as well as signal and reference for the gauge
#5 and #6 I can't see good enough. Try another pic.
10-21-2008, 03:59 PM
GasGuzzler

On second thought I'll guess. #5 looks like part of the fuel pressure regulator and #6 is the in tank return.
10-21-2008, 06:23 PM
yellowdemon327

no no no. #1 is the flux capacitor
#2 is the headlight fluid re fill valve
#3 is where you plug in your i-pod
#4 is the etcdhlmn diode 6 and 7
#5 is...well you dont need to know what #5 is
#6 is the uh, umm ....finally one i dont know
:LOL:
10-21-2008, 09:44 PM
Yeajimi

Quote:

Originally Posted by GasGuzzler

On second thought I'll guess. #5 looks like part of the fuel pressure regulator and #6 is the in tank return.

Thanks Guzzler. #5 is a small nipple on top of the fpr. I believe it controls the diaphram via vacuum. I was just making sure since I can't find much info about it.