Painless Ls Wiring Diagram For Dual Fans

The connectors provided with the kit fit the popular general motors lt1 ls1 dual fan assembly.

Painless ls wiring diagram for dual fans. Route the 2 groups of 12 gauge wires labeled fan 1 low and fan 2 high from the relay to the electric fan motors. Fan controls 1 2 gm pcm s typically will control electric fans usually 2. Route the 2 groups of 12 gauge wires labeled fan 1 low and fan 2 high from the relay to the electric fan motors. The wire in painless performance kits runs a little larger than the standard.

The red wires connect to the power side of the fans and the black wires will connect to the ground side of the fans. Wiring dual cooling fans. Lonnie s garage puppetkicker 23 256 views 12 48. This is based on the draw from the fans if the fans are larger and draw more than 15 amps each it s recommended to install a second relay kit as shown below.

1984 c10 project ls swap part 13 2 cluster swap using a 90 91 square body cluster part 2 duration. Air conditioning considerations prior to buying a custom wire harness or doing pcm calibration work determine if the vehicle will have air conditioning if electric fan s are required when the a c compressor is on and if the pcm will be used to control the electric fan s. With dual cooling fans there are two methods for wiring up the relay kit. Primary wire is typically an 18 gauge wire and is the most common wire found in wiring harnesses.

Painless ls wiring diagram for dual fans a typical ford 5 0l v8 sfi engine in a mustang with the stock speed density based air fuel metering system mass air metering came in on california 5 0l ho cars and went nationwide in it took some engineering smarts to turn the mysterion s canted dual engine configuration into but stahls automotive collection added sparkplug and coil wire boots incorrect. The primary wires are 16 gauge with 12 gauge for heavy draw items such as the headlights. The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method. Some 2003 ls pcm s tach signal is not strong enough and needs boosted see this link.

You can not directly connect pcm fan control wire to fans. Or a single relay could be used to control both fans. Lt1 dual fan painless wiring in a g body how to duration. The red wires connect to the power side of the fans and the black wires will connect to the ground side of the fans.

For example dual thermostat switches or dual relays could be used to control each fan separately. 5 3 ls swap part 22 video 2 2 radiator. The larger wires that feed heavy draw circuits are typically 14 to 12 gauge. There are several ways that a dual fan can be wired.

The pcm will supply the negative or ground signal to turn on fan relays.