[71CHEVYSHORTBED402]

Ha....I like how you order responses. I put the original questions in bold, and responses in blue


First off do you have AC on the truck or just a heater fan...........Factory A/C...Difference is forward the Evap. box was pulled. That and I don't recall ever seeing an anti-dieseling relay. There's a provision for it both in dash and wiring.

1. Fan Switch: Are you referring to the AC fan control?.........Unless I'm off my rocker (quite possible), it's called CONTROL SWITCH on the diagram in the OP. Am I using the wrong term?

What is "LOOSE CONNECTOR"?.......... This wire is the fan control switch wire on trucks without AC. It is the power wire to the heater fan control switch. I don't think it is used on the AC fan switch. .........Very cool. Good to know I'm missing it on purpose.

B. My temperature system isn't wired quite to factory diagram, including there isn't a pink wire (I believe it's pink) on the fan switch connector. Can you confirm (or other) the brown & pink wires are supposed to be on the same spade at the connector for the fan switch?...........look at the switch control on the bottom terminal. I believe it is the pink wire for power to the control switch. If you trace it back up to the anti-dieseling relay you'll see that it is connected to the orange wire that is a jumper wire from the main fan high speed relay. The orange wire is the power feed wire from the fuse box (CIG) terminal..............Recall my system isn't wired to the diagram? You picked up on that in another thread. The anti-dieseling relay was wired per the info. at the bottom. What I'm asking is, where is the pink wire supposed to be placed on the connector for the fan switch? If it helps, my fan switch is wired per post #2.

2. New Wiring Kit: At the moment I'm planning for an American Autowire or M&H kit. Do these wiring kits come with a new fuse box?............ Probably not unless you order it as a kit......I am ordering it as a kit. I hear they even come pre-wired for HEI.....Perhaps for an internally regulated alternator as well

3. Fuse Box Panel: From conversations it seems there's a provision to access the back of the fuse box. How is that done exactly?..........There's two screws to be removed..............I understand. The fuse box and wires are sitting in my recliner.

Here's a picture showing the fuse box and the inner cab and outer cab connectors.............[Separating the back of the box has me stumped. That portion is shown in the illustration you provided, second illustration down and middle portion of the box. There is some sealant or glue on the bore for the screws where the box meets the firewall, if you get my meaning. Perhaps I'm babying it. That and I don't see any reason to open it, beings a new kit is pre-wired.


While I can copy and paste exactly how my system was wired less inside the fuse box, so you know where I'm coming from, I'm green how 12V operates. I appreciate all your help.



Me Anti-Dieseling wiring:

The wires on the connector are:
12 AWG orange: This wire comes from the blower relay.
12 AWG pink: This wire comes from IGN. UNFUSED
14 AWG dark green: This wire is connected to the A/C switch.