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LQ4 Express van Wiring

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Old Mar 20, 2018 | 08:23 PM
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Billrobbobjo's Avatar
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Default LQ4 Express van Wiring

Hello everyone,
Any tips for LQ4 wiring. I have pulled a 2003 express van LQ4, Planning on using the harness. I have plucked alot of spare wires. I keep going to the Pinout for the computer but I would like to know the internal side of the wiring. What goes to my key along with what I need to keep for the AC unit.

I have the steering column. There are like 6 or 8 larger wires like 14 gauge wires that lead up the key switch. One is the starter, one is accessories on. Anyone know of a diagram for this? I plan on putting this motor into a 57 chevy truck. I would like to get the AC to work, but don't know the best way to make something like this work, because it runs off the black box that was under the dash. Also I would not want to use the Air vent/heater controller unit either. Not sure how these switches work but I would assume they just use values between 0-5 volts and the black box adjusts the corresponding fan/AC unit/ etc.

My two questions are whats the best way to get this motor running. Without anything connected to it? Aka Starter,Coils,fuel pump. Anything else im missing?
Second anyone got a idea on the AC/Heat control?
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Old Mar 22, 2018 | 06:07 PM
  #2  
vincentnova's Avatar
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Originally Posted by Billrobbobjo
Hello everyone,
Any tips for LQ4 wiring. I have pulled a 2003 express van LQ4, Planning on using the harness. I have plucked alot of spare wires. I keep going to the Pinout for the computer but I would like to know the internal side of the wiring. What goes to my key along with what I need to keep for the AC unit.

I have the steering column. There are like 6 or 8 larger wires like 14 gauge wires that lead up the key switch. One is the starter, one is accessories on. Anyone know of a diagram for this? I plan on putting this motor into a 57 chevy truck. I would like to get the AC to work, but don't know the best way to make something like this work, because it runs off the black box that was under the dash. Also I would not want to use the Air vent/heater controller unit either. Not sure how these switches work but I would assume they just use values between 0-5 volts and the black box adjusts the corresponding fan/AC unit/ etc.

My two questions are whats the best way to get this motor running. Without anything connected to it? Aka Starter,Coils,fuel pump. Anything else im missing?
Second anyone got a idea on the AC/Heat control?
In case you change your mind i have new wiring harness for your setup . instagram keep_m_running
Reply




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