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.
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.
#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.
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.Originally Posted by GasGuzzler
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
02' silverado ext. cb 2wd , 5.3 liter 325c.i. LM7, ported and polished throttlebody with bypass, Jannetty Racing 87 octane dyno tune, cold air intake with custom ram air, Heavy duty built 4l60e with vette servo, Z-pac clutches, "The Beast" Sunshell, transgo shift kit, yukon 4.10 gears with true trac, custom exhaust with Moroso Spiralflow, no cats, MSD 8.5 race wires, NGK TR55's
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