Hi all,
A previous owner intended to register this truck as off-road only or in a non-smog county in CA, and none of the emissions or exhaust were in place when I bought it. I was living in OR at the time so I wasn’t worried, but now that I’m back in CA I’ve been trying to resurrect the rats nest of hoses and valves. Luckily it came from the factory without an air pump.
Rather than rebuild the quadrajet that was full of mud bee nests, and dealing with a string of lemon mechanical fuel pumps, I opted for the MSD Atomic EFI master kit, which also happens to be 50 state legal.
I’ve pretty much routed everything to where it needs to be, but I am getting tripped up on the 4 way thermal vacuum port on the thermostat housing. I know I have something wrong because the EFE valve is not closing during warmup. Trial and error just got me a permanently actuated EFE and Google hasn’t been helping either.
Can somebody walk me through how to read the diagram and what each port should go to? I’m having trouble orienting the real world switch to how it is portrayed in the routing diagram next to the radiator…
Also, does anyone know what the knob is supposed to be, coming out of the bottom right of the port as shown? One way check valve?
Thanks!!
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