87 JEEP YJ STARTER SOLENOID WIRING
Starter solenoid wiring diagram for a 87 jeep yj - Fixya
wwwa››Jeep›Wrangler›1987 Jeep WranglerJun 14, 2011SOURCE: 87 jeep cherokee won't start. OUCH!!! If there was no previous wiring problem, first check that you did not inadvertently ground a hot wire somewhere. Then check the starter & solenoid for internal shorts. (Ive seen some wierd stuff along the way, including a brush assembly that broke and the spring shorted out an entire starting system).Hi there,
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Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US. Here's a link to this great service Good luck!OUCH!!! If there was no previous wiring problem, first check that you did not inadvertently ground a hot wire somewhere. Then check the starter & solenoid for internal shorts. (Ive seen some wierd stuff along the way, including a brush assembly that broke and the spring shorted out an entire starting system). Unfortunately, you will have to cut open the wiring harness and replace all burned wiring. Be careful to seperate any fused together wires without breaking them. Use the same gauge wire when repairing, to avoid overheating of new stuff after repair wire ends together, then solder all connections. Squeze type junctions do not work all the time. good luck0check module in distribitor0Go to any scrapyard and you can get the entire setup for next to nothing. you can see how it's hooked up!!!0Autozone has some great wiring diagrams. I looked and your Jeep seems to be there. Go to Vehicle Repair Guide>chassis electrical>wiring diagram. You may need to register, but I think it's worth it. I'm looking at the diagram for your vehicle so if you have any trouble finding it just post a comment and I will try to assist you.0The starter solenoid has three pins on it, two are large and of the same size opposite one another the third is smaller and above and towards the centre of the other two. The base of the solenoid should be grounded but may have a wire to the car body (ground). Wiring these things up is pretty easy if we walk through it. Three wire connections consisting of 1) the battery positive supply cable (heavy), 2) a fused medium weight cable (for lights) and 3) a heavy weight power 'link' supply cable to the fuse box should all be on the large left pin of the solenoid (as you look at it). The other large , right, solenoid pin should have only the one starter-motor power supply cable on it. The third smaller 'centre' pin has one light weight ignition lead (often red) plugged to it. Ordinarily the base plate of the solenoid is metal and when mounted onto the car body this provides enough grounding but sometimes this can be done through use of a light weight (usually black) grounding cable that is attached to the car body. To summarize, three wires to the left, one to the middle, one to the right and one to the solenoid body makes a total of six wires. Does this tally make sense to you?
When you put the ignition key to position 3, power is supplied to the small centre pin. and current flows through the solenoids coil and exits to the ground. This coil when energized pulls up on a plunger with a connector plate at its top that makes contact between the solenoid's heavy pins allowing current to flow from the left 'power' pin to the right 'starter-motor' pin. The solenoid contact should remain closed whilst the starter key is held at position 3 and the engine cranks over. If the battery is in poor condition, loose battery terminals or poor cabling the solenoid can click rapidly (woodpecker) and the engine will refuse to crank.0
Wiring for separate solenoid switch 87 YJ - JeepForum
May 01, 2011Anybody know where I can get a diagram of what goes hooked up to the solenoid on an 87 YJ. I have the type with the solenoid separate from the starter. Wiring for separate solenoid switch 87 YJ - JeepForumAuthor: Jklanier84