Well I just got under the truck to do the obligatory visual check and plug in the test lamp.
The Metripak150 connector for the vent valve is full of green and brown puss and one terminal on the vent valve is corroded off and stuck in the plug.
I cut the wires off even with the plastic shell hoping to just crimp new Metripak terminals and cavity seals on the ends of the wires and re-use the shell...
No such luck. I discovered the seal was nicked by someone not being careful when they installed a valve... it was leaking water and road crud into the connection for long enough to turn the terminals to a green slurry.
I kinda figured I might find this. I've seen this before.
I looked up the canister vent solenoid connector end view on
Page 6-2428 of the 2005 GM Light Truck service manual and it calls for a Metripak 150
Delphi 12052643 shell.
The local auto parts guys don't have a pigtail so I ordered a 1205264 for $1.49 from Mouser along with some other electronics parts and automotive terminals I've been putting off ordering. It'll get here Wednesday or Thursday.
This is the EVAP Vent Valve circuit in all its' glory. The PCM closes the ground to the evap vent valve when it's commanding it closed and the other side of the circuit is hot at all times from the fuse panel.
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If you do any automotive or motorsports electrical work you do not have to buy the crimp tools that crimp the pins for one connector family only in one operation. That type of tool is real nice but it's expensive and not versatile.
Delphi made two very versatile ratcheting terminal crimp tools. Actually more than two but these are the bees knees.
They crimp terminals in two operations. The conductor is crimped in the proper cavity for that terminal & wire gauge. Then you move the partially complete assembly to another cavity where the insulation or seal wings are crimped in a second operation.
I've crimped Deutsch DTM & DT open wing terminals, Molex GT, Metripak GT, Metripak 150 & 280, AMP Quadlok (VW AUDI), Weatherpak, Packard 56, and several other families on 14-20ga wires using the two Delphi tools. $220 for the pro level tools is a bargain for that versatility.
They cost between $90 & $130 each but you can position the terminal and ratchet the tool down and re-position the wire without loosing the jaw closure. They will not open til you have completed the crimp cycle or cammed the emergency release open so you don't end up with an over or under crimped terminal. You can likely evilbay these off for $95-$100 each if you take care of them and suddenly decide you don't need em.
-Delphi Ratcheting 12085270 Crimps Weatherpak and Metripak 150/280 sealed terminals... Three seal and two conductor wing cavities.
-Delphi Ratcheting 12085271 Wide range crimper with five cavities for conductor and un-sealed insulation strain relief crimp wings.
If you need to crimp Metripak 480 or 630 or Packard 59 terminals you need larger cavity tools but the above tools will crimp 85-95% of what you're likely to encounter.
These are some less expensive $30ish non ratcheting tools. These are great for the weekend warrior that's crimping a few terminals or as a tool to hold you over til you can find a nicer one but you'll tire of them quickly if you're building vehicle harnesses for your hot rod or restorations. The downside is you can open them before the crimp operation is completed and end up with loose crimps and they don't have the positive stops of the more expensive tools so you can over crimp the terminals as well.
-Wire and weather seal crimp tool for Weatherpak and Metripak 150/280 sealed terminals.
https://www.amazon.com/dp/B002CCAEJ6
-Wide range wire and jacket wing crimp tool for unsealed and sealed connector conductor wings. This tool will not crimp the Weatherpak/Metripak/Molex-GT weather seals but it will crimp the conductor wings of those families and both wings of un-sealed terminals.
https://www.amazon.com/Delphi-Packar.../dp/B003MWJ6SA