In GM LS applications GM used three relays to control your fans in series to enable the fans to work together. As you can see from the diagrams above and below, it's really a simple circuit that not only provides the proper Find Ron Francis Wiring AR79 Ron Francis Wiring Dual Electric Fan Relay Systems and get Free Shipping on Orders Over $99 at Summit Racing! A proper cooling system starts with the right radiator, along the proper fan shroud and electric cooling fans. The Super Duty fan motor requires a high-amp alternator and Be Cool’s 40-amp waterproof relay to produce peak performance and durability. PARTS INCLUDED: COOLING FAN RELAY, WIRING, FUSE HOLDER, TERMINALS. Handles single or dual fans. When the PCM triggers only the low-speed fan output, current flows through both electric fan motors. All PSI Harnesses are Made in the USA. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. Just supply Power to the fused lead and relay from your battery, Use your LS Harness fan controls to switch the ground trigger on the kit, and plug your fans in. Selected Size Sold Out! A complete installation instruction booklet is included with every module. to that relay and trigger it to complete the circuit and power the fans until the PCM detects the temp has Kits are professionally constructed from Brand New GM Delphi Connectors and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications. Painless Wiring Harnesses Painless Performance - 30 Years of Wiring Solutions NEW Project Truck: Chassis 71 Suburban Home Wrenchers Ep.001 Functional Ram Air EFI + Rewired the Car! All you have to do is type “ls swap mounts” into google to see what I mean. Be sure to secure the wires using tie straps. The original engine harness was sold with the 4.3 that was in it, so i have none of the old wiring that would be helpful at ths point. Relay is high quality SEALED dephi component. $135 - Fan Kit for F-Body, NBS Truck, or F150 Fans (3 Relay - High/Low operation) $125 - Fan Kit for F-Body, NBS Truck, or F150 Fans (2 Relay - Fan1/Fan2 Independent operation) $125 - Fan Kit for Duel Aftermarket Fans (3 I have a PSI engine harness on it. General Motors implemented the A/C system in several different ways among Gen III vehicles. Jeep CJ7 Update 62 - Complete Rewiring of a CJ7 using Painless Wiring Kit. Login to your account to access helpful features to expedite your checkout experience. customerservice@psiconversion.com LSX DUAL ACTIVATION / DUAL FAN RELAY KIT WITH 205oON 190oOFF THERMOSTAT INSTALLATION INSTRUCTIONS This electric fan relay kit will operate a dual fan setup, not to exceed 30 amps each. Also included is an easy-to-follow wiring diagram. PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. (fig.6) 5b.Notice Flex-a-Lite / Universal Fan Motor Plugs: Universal/Flex a Lite fan harnesswires We make it super simple by giving you a fuse and relay box already wired up with labeled outputs that you just plug into your ECM connectors. This harness installs easily via power and ground, and when the blue/green wires get ground via a switch or your ECM, it will turn the fans on. These Champion radiator fan relay kits are perfect for wiring up the fans on your radiator. This kit is used with most electric fan hookups. has been added successfully to your wishlist. Aluminum Radiators cool more effectively and weight less than older OEM style brass units. Of most importance is the consideration of electric fan control. Product Description LS Swap DIY Harness Rework Fuse Block kit for LS Standalone Harness with Fans 1993-2015 LT1/LS1 DIY Factory Harness Mod Kit This has enough circuits to power a 4.8, 5.3 or 6.0 all terminals are production These Ron Francis Wiring dual electric fan relay systems are just what you need. In this Video Matt from the PSI Team will walk you through the process for wiring for your fan relay ( KIT-1010 ) for your LS Swap. Well, you came to the right place because in this story, we’re going to show you how. When … Please refer to How To: LS Swap Fuel System. Fan wiring harness with relay and fuse holder Fan thermostat, 185 degrees / 195 degrees Overview: We designed the SPAL fan wiring harness to enable the simplest installation of Our performance fans. techsupport@psiconversion.com. Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? Fan Wiring Kit Fuel Pump Fuel Pumps Regulators and Filters Relay Relay Kit Relays Solid State Relay Starter Switch Brand Holley Mr. Gasket MSD Quick Fuel Items 1 - … - LT1 - LS1 - 05+OEM - Flex-a-Lite - Universal - Street & Strip - We have you covered. Are you the Do it yourself kind of gear head?. The kit includes a high quality Sealed 40 amp relay, a sealed Fuse Holder with included Fuse, a Sealed Fan Connector, and a Second connector, and terminals to install on your fan if the kit doesn't plug directly into your fans. sales@psiconversion.com This will be one of many videos upcoming to help with you LS Swap so you can "Wire it Up & Fire it up!" Fast, simple, and it will be done right. The PCM is sending a ground signal to the relay but the relay is not activating. The relay is mounted fairly close to the fan and the main power lead runs from the Camaro's horn relay to the hot side of the fan relay. You can use the ECU/ECM to turn the fans on or run them to a simple switch if you prefer. I've swapped a 4.8 into a 2003 Xtreme Blazer (with a billet S366) and am in the final stages of the swap. Your #1 Source for OEM Operated PCM Controled and Universal Electric Fan Harnesses. There are some mounts which allow for the stock LS air conditioning compressor to be kept … $49.00. We … If your project uses electric fans, begin with a PCM calibration from a vehicle that has electric fans. Log in, HOW TO USE AND UPGRADE TO GM GEN III LS-SERIES POWERTRAIN CONTROL SYSTEMS, Gen III (3) LS 500+ Horsepower NA Street-Racer Buildup, LS Engine Turbocharger Projects: Step-by-Step, LS ENGINE TURBOCHARGER INSTALLATION PROJECTS, GM LS-Series PCM: Understanding the Small-Block Generations, GM Gen III LS PCM/ECM: Electronic Throttle Equipment Guide, GM Gen III LS PCM/ECM: Crankshaft and Camshaft Signals Guide, Firebird and Camaro LS Swap: Cooling System Guide, LS SWAPS: Engine Management Systems Guide, Gen III (3) LS Vortec Truck Engine Buildup Guide, LS Engine Supercharger Projects: Step-by-Step, Gen III LS PCM Conversion Upgrades: Projects, Lessons and Strategies, HOW TO BUILD AN LS ENGINE: HEADS, CAM AND INDUCTION, Camaro and Firebird LS Swap: Chassis and Suspension, How to Control Your Gen III (3) V-8 LS Engine, LS SWAPS: Wiring Harness and Wiring Guide, GM LS-Series PCM/ECM: Comparing Gen III Controllers, Crankshaft Guide for Building Big-Inch LS Engines, Camaro and Firebird LS Swap: Exhaust and Induction Guide, LS Engine: Intro to Supercharging and Superchargers, Upgrading to Gen III LS-Series PCM: Sensors and Inputs Guide, LS: Forced-Induction Support and Auxiliary Components, Upgrading to Gen III LS-Series PCM: Signal Output Guide, 100 Horsepower Anybody Can Install in Gen 3 LS Engines, Piston Guide for Building Big-Inch LS Engines, Cylinder Head Options for Building Big-Inch LS Engines, Firebird and Camaro LS Swap: Transmission Guide, HOW TO BUILD AN LS ENGINE: CYLINDER BLOCK AND ROTATING ASSEMBLY, LS ENGINE SUPERCHARGER INSTALLATION PROJECTS, Intro to GM’s LS Gen III and Gen IV: The Small-Block Chevy Reborn, Fuel and Spark Guide for Big-Inch LS Engines, Connecting Rod Guide for Building Big-Inch LS Engines, Gen III (3) LS 1200 Horsepower, 387-Cubic-Inch C5R Power Guide, Camaro and Firebird LS Swap: Wiring Guide, LS Cylinder Head Supporting Components Guide, Upgrading to Gen III LS-Series PCM: Cruise Control Guide, Camaro and Firebird LS Swap: Front-Drive Accessory Guide, Ultimate LS Cathedral Port Cylinder Heads Guide, What You Need to Know About LS-Series Engines, GM Gen III LS PCM/ECM: On-Board Diagnostics Troubleshooting, LS Engine Rebuilds: Break-In and Tuning Guide, Camaro and Firebird LS Swap: Engine and Subframe Guide, Gen III (3) LS Production Parts for Performance, How to Tune Supercharged and Turbocharged LS Engines, GM Gen III LS PCM/ECM: How to Change the Firing Order, Ultimate LS Rectangular Port Cylinder Heads Guide, Upgrading to Gen III LS-Series PCM: Electric Fan Guide, LS: Pre-Installtion Guide for Turbochargers and Superchargers, The LS Engine Family – Building Big-Inch LS Engines, LS Engine: Intro to Turbocharging and Turbochargers, Engine Block Options for Building Big-Inch LS Engines, Firebird and Camaro LS Swap: Fuel System Guide, GM Gen III LS PCM/ECM: Tuning Software and Equipment, LS Engine Rebuilds: Component Preparation Guide, How to Build an LS Engine: Cylinder Block and Rotating Assembly, Proven Stroker Combos for Big-Inch LS Engines, LS ENGINE SUPERCHARGER TYPES AND HOW TO CHOOSE, GM Gen III LS PCM/ECM: Wire Harness Selection Guide, The Ultimate Guide to Gen 3 LS Bolt on Power, Induction Guide for Building Big-Inch LS Engines, The Arrival of the LS Engine – Start Your Rebuild, Choosing an LS Engine for Camaro and Firebird LS Swap, Upgrading to Gen III LS-Series PCM: Air Conditioning Guide, How to Build an LS Engine: Cylinder Heads, Camshafts and Induction, How to Remove and Install Gen III LS Engines: Tips and Tricks, TUNING FOR SUPERCHARGED AND TURBOCHARGED LS ENGINES, LS SWAPS: Accessory Drives and Cooling System Guide. 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