Hey all, I cannot for the life of me find a OEM replacement under-hood wiring harness for my 2000 S10 4.3L 2WD with a 4l60e auto trans. The auto electrical shop I took my truck to quoted me 4k to replace the harness and $1600 to repair the old one to "like factory". I can't justify that as I...

Hello everyone. I’m new to the forums and new to s10s and ls engines, coming from a diesel world and wanted to try something new. I have a 1999 2wd s10 it’s a base model crank windows and the truck does not have hvac (my choice). Engine is a 2000 lm7 engine with minor upgrades.Anyway very close...

I have a 01 Blazer 2dr, 2wd,5spd, 4.3l, and the original motor blew up so I put a 4.3 from an Astro Van in it. The van was running perfectly fine before someone rear-ended it, and i was able to snag the motor. The van was automatic but everything looked the same, i plugged everything in, and...

I’m about to install the factory dash in my 93 s10 blazer 2wd 2 door. When I got the project it was already out and totally disconnected. It’s getting an ls swap and for right now the radio won’t be hooked up or installed. Ignition will be on a panel so no ignition cylinder / stock column at...

Looking for a 4.3L auto trans 4x4 engine harness for my 01 ZR2. Grey/silver pcm. Hopefully somewhere in Colorado, or reasonably shipped. U pull and pay price is $30, non u pull and pay price is $80, looking in this price range. Needs to be complete, including all transmission and t-case connectors.

I’m in search of a wiring diagram for next to cpu or another engine harness I just got the truck did a tune up (plugs wires distributor cap and rotor) and plan draining and cleaning the tank this weekend since the truck sat for about 2 years. Ive been fixing wires that were ate up by rats I was...

I'm starting a 1991 project truck it is super clean and almost zero rust. The truck has already converted over to a v8 set but has a ton of unused wiring in the engine. Is there someone that has a wiring delete diagram and a idea of what wiring has to stay... I have removed wiring harness from...

Hi folks & Tech Exchange editor. I just bought a 2003 Chevy S10 Ext Cab 4.3l v6 Fleetside with 89k on it. I bought it to haul a small travel trailer (1000 lbs dry weight). Looking around underneath the rear end to check hitch & wiring options and saw the following. Wondering what two items are -...