Jeep Yj Alternator Wiring

If your yj is not starting will not charge up or has both issues then these wrangler yj alternator and starters are for you.

Jeep yj alternator wiring. Jeep wrangler jk showcase. All wire is 600 volt 275 f txl. With the jeep off the voltage on the battery is 12v. Jeep gladiator jt showcase.

Mean green alternator for 87 90 jeep wrangler yj 4 2l 258c i. I m not sure if it has an internal or external regulator. 1989 yj is shown. I ve taken it to two parts stores and both said it is fine.

Early jeep yjs have a wire that goes from battery to a starter relay under the battery tray with a straight lug. You can check if the field coil is powered by connecting a multimeter to the terminals of the field coil and starting the engine. 6 cylinder engine with v belt 399 99 quadratec oem style 94 amp alternator for 83 89 jeep cj 7 cj 8 wrangler yj cherokee xj comanche mj j series pickup grand wagoneer wagoneer 2 5 4 2l. Air conditioning units typical jeep charging unit wiring diagrams typical emission maintenance reminder wiring diagrams front end lighting wiring diagrams and switches.

After starting the voltage drops below 12v. Standard automotive wire is gpt 300 volt 176 f with pvc insulation. Possible a wench. Jeep wrangler yj 135 amp alternator upgrade.

This painless wire harness is designed to be used in the 1987 1991 jeep yj. The alternator is not charging battery. The other two wires feed power to the field coil. One is a big fat wire that goes to the battery this is the alternator output.

I ve tried to find the regulator but haven t been able to. This complete yj wiring system has been designed with four major sections incorporated into it. Jeep wrangler yj showcase. Replacing your alternator is essential.

Well here are a few more wiring diagrams for jeep wrangler this time for the jeep yj series years 1987 to 1994. The pdf includes body electrical diagrams and jeep yj electrical diagrams for specific areas like. See picture at left. Using an alternator from a 1998 dodge durango i up the amps in my wrangler to prepare for future light and sound upgrades.

The alternator wire goes from the battery side of the start relay to the alternator. There are 3 wires attached to the alternator. If your alternator s shot your electronics will fail and leave you in the dark.