[98TJ]

Originally Posted by Jeepguy81

Ok, I messed around with it a little more last night and this is what I figured out when I hook the wires up in the following configurations:

Red: Power
Black: Ground

- nothing, just get a single click from the pumps

Pink: Power
Black: Ground
Red: Power in from wire on diff (spliced power off the pink wire and sent to diff)

- will chug very very slowly and doesn't shut off. Checked the voltage and pink wire is getting approx. 12V, the red pressure switch wire gets about 7.5V (not sure why that is)

Pink/Black: Ground
Red: Power

- pump runs like a scalded cat but will not shut off. Maxed out my vacuum gauge at 10psi and it was still going.

I hate being a nuisance but I dont' want to spend $200 on new pumps if these ones still work (which the sort of do). Does anyone have a wiring diagram stating exactly what each wire does? Technically, there are 2 red wires (spiced into one by the factory), one black wire, and one pink and one green wire (spliced together into one pink wire).

If I knew what each of these wires were for I would be better able to diagnose this problem. Any help is appreciated. Thanks!

Funny thing is when i started this last weekend, these are the same problems i am getting. I have tried everything.
red (power)/black = click
pink( Power)/black = Runs very slow and will not shut off ( actually it's sucking air on bottom outlet)
pink (power)/ Red = runs very fast...but it's still sucking air

maybe one of the spliced wires that are being hooked up needs to be separated.

Who knows

[Giviner]

Just an update, I ordered a new set of pumps from jeepsareus. They arrived today so I hooked them up and as it turns out they operate the same way as paultyler's: red is power, black is ground, and the pink is not needed.

Gave the jeep a little test drive on a dirt road by my house and they work like a charm.

[yellow_dolphin]

Just as an FYI. I tested a set of these pumps to see what the PINK wire was all about. I used Black as ground, Red as power, and connected the PINK to the voltmeter. While the pump was off or on but below pressure, the Pink had 0 VDC. When the pump reached pressure and stopped, the PINK wire had 12 VDC. My pump came from an '05 but I don't have a wiring diagram for that year. I am assuming that this PINK wire is a switch to pass information somewhere else. Any more insight is appreciated.

[98TJ]

Originally Posted by Jeepguy81

Just an update, I ordered a new set of pumps from jeepsareus. They arrived today so I hooked them up and as it turns out they operate the same way as paultyler's: red is power, black is ground, and the pink is not needed.

Gave the jeep a little test drive on a dirt road by my house and they work like a charm.

Yep this is exactly the way to do it. Apparently when i was trying to figure this out before searching i hooked up the pink wire and it ruined the pump (makes a single click when hooked up red to power and black to ground). So when i ordered a new one i immediately taped up the pink and hooked up the red and black only. Works perfect.

[deltabravo]

Originally Posted by yellow_dolphin

Just as an FYI. I tested a set of these pumps to see what the PINK wire was all about. I used Black as ground, Red as power, and connected the PINK to the voltmeter. While the pump was off or on but below pressure, the Pink had 0 VDC. When the pump reached pressure and stopped, the PINK wire had 12 VDC. My pump came from an '05 but I don't have a wiring diagram for that year. I am assuming that this PINK wire is a switch to pass information somewhere else. Any more insight is appreciated.

could be that the pink wire is what sends a signal that lights the dash indicator light for the locker(s) - probably not directly lighting the light, but sending a signal to the computer that in turn sends voltage to light the light... because the light will blink until the locker is fully engaged... thought I think there's something in the locker that tells the comptuer that the locker is fully engaged so the light goes solid (and stops flashing). maybe the two work in conjunction with each other.

[paultyler]

Originally Posted by deltabravo

could be that the pink wire is what sends a signal that lights the dash indicator light for the locker(s) - probably not directly lighting the light, but sending a signal to the computer that in turn sends voltage to light the light... because the light will blink until the locker is fully engaged... thought I think there's something in the locker that tells the comptuer that the locker is fully engaged so the light goes solid (and stops flashing). maybe the two work in conjunction with each other.

Yeah...that's what I was thinking too.

[Si1ver03Rubicon]

Originally Posted by deltabravo

could be that the pink wire is what sends a signal that lights the dash indicator light for the locker(s) - probably not directly lighting the light, but sending a signal to the computer that in turn sends voltage to light the light... because the light will blink until the locker is fully engaged... thought I think there's something in the locker that tells the comptuer that the locker is fully engaged so the light goes solid (and stops flashing). maybe the two work in conjunction with each other.

x2

At first with all this different pink and red wire stuff I was wondering if the 03 rubicon pumps were different from the 04-06. However looking at the dealer they said its the same p/n for 03-06.

[tjrunner]

seriously guys, the click that you guys are hearing is the solenoid closing to hold the pressure and shutting off the pump.

The way you guys have it wired up will work just fine. The pump just pumps until it peters out. Think about this though, if you hold an electric fan still and turn it on, how long do you think the motor will last? It's made to turn when turned on. When not in use the power is shut off. The pink wire shuts off the pump AND closes the solenoid to hold pressure. It is wired thru the locker itself so that when it gets a signal (connection between the two sides of the locking mechanism) it closes the solenoid and cuts power to the pump until the signal is lost (due to pressure bleeding down) or the switch is turned off. And yes, it does also power the light in the dash (if you so choose to install one).

Like I said before, it will work fine the way you guys have it wired. Just trying to let you guys KNOW FOR FACT the intended purpose of the pink wire. I'm the only person here that has given a tested and proven use for the pink wire. All the rest have been "well it's probably just to..."

Guys, I'm not trying to be a horses butt about this, just trying to help you guys understand the purpose and use of the wires. Don't take this post the wrong way, please. For informational purposes only!

[Giviner]

tjrunner, if what you are saying is true, then wiring up the pumps the way we have them wired (red-power, black-ground) should just cause that single click of the solenoid to shut off the pump. That is not the case however, the pump runs full blast when wired this way.

Also, how do you explain the pink wire getting power once the proper line pressure has been reached? There must be some internal sensor that powers that wire once the proper pressure is reached and the pump shuts off.

I'm not trying to be a ****, but your pump behaves differently than the one that I have.

[jdarg]

Originally Posted by tjrunner

OK, here's the final wiring diagram.

Pink is power to the pump.

Black is ground.

Red is power to close the pressure release valve.

Through a switch, run power to the pink. Also, splice a wire off of it into one side of the wires coming off the diff. The other wire from the diff goes to the red wire on the pump.

The wires from the diff only make a connection when the locker is locked, which allows power to close the pressure release valve (red). This also shuts the pump off. When the locker becomes unlocked (ie. due to a leak or the like) the pump will come back on to bring the pressure back up. All pressure is released and the locker unlocks when the switch is turned off.

Got mine working and wired up right just today......yes after 15 months!!! This is the correct way to wire it up and it works perfectly!!! I'm sooooo stoked! Gonna get to actually use it for the first time in a couple of weeks at Mega Run at Barnwell Mountain!

Northwestxj, I hope this helps! It took me and a couple of friends a few beers to get it figured out!

I have a Rubicon and have cut into the stock wiring to move the pumps on two vehicles. The sensor in the pumpkin is NOT tied into any wire on the pump but to the locker switch "computer" (part of the button assembly) which drives the dash lights and the pumps. When the pump is on but the diff switch indicates no lock, the dash light flashes. Once the axle indicates a lock, it is solid, and vice-versa for unlocking. Trust me the sensor and pumps are not wired together because one system can (and does) fail while the other still functions properly.

From memory I know for a fact there are only two wires per pump in the vehicle harness (power and ground, no signal from the diff switch) that runs under the tub to the lockers. One of those wires is connected to one wire on the pump and the other wire connects to *two* wires on the pump. So *three* pump wires are used but only two are in the harness. I can't remember the colors off the top of my head, though I think red+pink are the parallellel wires on the pump, connected together to one of the harness wires. I will look when I get home - rode the bike to work today.

[jay4554]

wow... i'm bringing this one back from the dead ..... Here's what worked for me (after blowing one pump, if anyone has an extra pump please let me know) RED power black ground and the pump turns it self off ... DO NOT CONNECT PINK TO POWER AND BLACK TO GROUND because then the thingy inside will not work anymore and it will just click ... trust me i know... cause now i have a dead pump :'(


hope this helps

-jason

jay4554@aol.com

[tjrunner]

Originally Posted by jay4554

wow... i'm bringing this one back from the dead ..... Here's what worked for me (after blowing one pump, if anyone has an extra pump please let me know) RED power black ground and the pump turns it self off ... DO NOT CONNECT PINK TO POWER AND BLACK TO GROUND because then the thingy inside will not work anymore and it will just click ... trust me i know... cause now i have a dead pump :'(


hope this helps

-jason

jay4554@aol.com

Hey Jay, If I pay for shipping will you give me your "dead" pump? I could use a spare....




Thanks

[jay4554]

Originally Posted by tjrunner

Hey Jay, If I pay for shipping will you give me your "dead" pump? I could use a spare....




Thanks

lol
wait a sec.. do you know something i don't know.... the little guy still pumps but now when i connect it (red power black gound) it just clicks but if i go pink power and black ground .. the little thing pumps ... if i go red power pink ground .. the little thing goes crazy pumping

[tjrunner]

Ummm..........no!........ummmm.........yeah it's toast! Ship it ups red today please!!! lol


But seriously, your pump is fine. Just run it like these guys are saying to. It will work fine. I have mine hooked up correctly and even put a dash light indicator on it last week. It works fine ALSO.

I did find out for how the rubicon stuff works though(only able to turn on the lockers in 4wd, the dash light, cant turn on the front locker until the rear locker is on, etc...). It DOES NOT run through the ECM.

Glad you guys got you pumps to work. Anyone else who wants to know the exact workings of it all can email me. Going to bow off this thread. I seem to be confusing more people than I'm helping. Sorry

[jay4554]

PM'd and emaild u TJ