87MJTIM

on the passenger side of engine, close to the fire wall, is a flat, 4 pin connector. That harness drops down to the transmission. On the other end of the harness, two wires come out to an 2 pin connector. That should plug in to the reverse light switch. A Blk/yel wire comes from the fuse panel and feeds power to the switch. A Brn/Wht wire then feeds power to the reverse lights. (What happens to the other two wires on the 4 pin connector you are asking? These would connect to a NSS gear selector switch on an auto trans. They're not needed for manuals.)

It is always sad to hear of someone dying from an accident, illness or violence. Especially when many of them were so young - two children.

Is it just me or do others look at some of these Comanches and ask "Why did you do that [name modification] to it?" Often times, I feel out of place. I like stock Jeeps. Call me crazy.

You could search for a switch with a probe that slots into the rad fins. I don't know of one, but if you have this issue, most likely someone else has also. Necessity is the mother of invention.

The temp coming out of the T-stat housing will be the hottest. The temp on the cool side of the radiator will be much lower. How much? IDK. NAPA sells a radiator that is an open system but has a bung for a switch - NR 2802. If you have not downloaded the 88 electrical manual yet, you should do so. It will assist with understanding the wiring for the e-fan.

Hope this comes through

My MJ is an 87 Laredo package. The window sticker states the seats are "tan." I pulled the interior from a 93 XJ that must be "sand." The XJ interior is lighter than the MJ colors. The MJ has more of a brown/orange tint to it. My MJ dash has a crack in it. I was thinking of swapping the XJ dash, but he shades are diff. I would want to paint it to more closely match the original color. The camel shade looks closer than the palomino for my MJ

You will need to determine which wires are in place to run the fan.

My e-fan does not kick on until the engine temp reaches 219*. That temp comes off the REM scanner which takes the temp from the engine block. The e-fan temp switch draws from the cool side of the radiator. So, I would guess that the coolant temp is a lot lower than 219* at that location.

Sounds similar to an issue I had many years ago. While driving, I would loose all power: engine, lights, everything. Sometimes, it would come back on; other times, i would have to pull over and restart the engine. Then one day it died and would not restart. I had power - lights, gauges, and cranking- but it would not fire. Turned out to be the CPS. Before you throw parts at it, test the CPS. See Cruiser's Tips #7. Also, see CPS Testing at Lunghd.com. Also, give us info about your MJ: Year, engine, transmission, 2 or 4 wd, major modifications, etc.

1, 2 ,4, 5 & 7. The rest are good to perform, but these directly effect electrical signals. (not that other ones don't effect electrical signals)

An auto trans (AW4) is longer by about 1" than a BA10 and AX15. The front drive shaft for an auto is longer than a manual trans DS.

Let's see Camel, Palomino and an original colors side-by-side-by-side. I have the Honey color

I'm going to sound like a broken record, but... Perform Cruiser's Renix Tips first before shooting parts at it. Especially test the CPS. If it is not functioning the ECU will not send power to the ignition system.

That is the TCU fuse and the connector should plug into a resistor pack under the passenger side dash.

Welcome to the club. Fill in your truck profile in your signature. First, an 86 did not come with a 4.0. (Unless a PO swapped in a 4.0) (87 model year was introduced in late 86, but was labeled as an 87) If the pedal goes to the floor with no resistance, check the cable to see if it is broken or frozen some where under the truck.

I would question that chart. The BA10 never had 23 spline output shafts, at least not offered on Jeeps.

What transmission do you have? The input shafts changed from 21 splines to 23 splines. The BA10 used 21 splines. The AX15 used 23 splines. I don't know about the AX4/AX5 that came behind a 2.5. Also, the AW4 (auto) changed from 21 to 23, but I don't know when.

Congratulations. He will grow up FAST! My little girl is 19 and in college. Where did all those years go?

Vehicles can be replaced; people cannot be replaced. Glad she is OK. I rolled my college roommate's car. I wasn't wearing a seat belt. I walked away without a scratch. Ever since then I wear seat belts.

What's that phrase I'm thinking of? "You can't fix stupid."

My wife and daughter were in Poland a few years ago and they noticed that most of the cars there had manuals. Sadly, that is Europe. I live in the good, old USA.

Manual shifting We have 5 vehicles at our house. Only one is an auto. We taught our daughter to drive a stick. She prefers the manuals over the auto. (Sadly, manuals are going the way of the Dodo.)

What?!?! It should be fine...as long as it doesn't rain. Looks like his flashers are on. Safety second, I always say.

Truly sad news. I saw Rush a number of times in the past. Always a good show. God bless. RIP