Jeep Yj Alternator Wiring

I ve taken it to two parts stores and both said it is fine. 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.

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The alternator is not charging battery.

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 wrangler jk showcase. Jeep wrangler yj showcase. Jeep gladiator jt showcase.

Jeep wrangler tj showcase. This complete yj wiring system has been designed with four major sections incorporated into it. This painless wire harness is designed to be used in the 1987 1991 jeep yj. Air conditioning units typical jeep charging unit wiring diagrams typical emission maintenance reminder wiring diagrams front end lighting wiring diagrams and switches.

Standard automotive wire is gpt 300 volt 176 f with pvc insulation. 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. Well here are a few more wiring diagrams for jeep wrangler this time for the jeep yj series years 1987 to 1994.

Mean green alternator for 87 90 jeep wrangler yj 4 2l 258c i. See picture at left. I m not sure if it has an internal or external regulator. If your alternator s shot your electronics will fail and leave you in the dark.

The pdf includes body electrical diagrams and jeep yj electrical diagrams for specific areas like. Jeep wrangler jl showcase. Jeep wrangler yj 135 amp alternator upgrade. Replacing your alternator is essential.

There are 3 wires attached to the alternator. With the jeep off the voltage on the battery is 12v. Using an alternator from a 1998 dodge durango i up the amps in my wrangler to prepare for future light and sound upgrades. Possible a wench.

The alternator wire goes from the battery side of the start relay to the alternator. I ve tried to find the regulator but haven t been able to. 1989 yj is shown. Bring your starter back to life with new solenoids or replace it all with a new starter.

After starting the voltage drops below 12v. All wire is 600 volt 275 f txl. Early jeep yjs have a wire that goes from battery to a starter relay under the battery tray with a straight lug.