Help identifying random things in engine bay... - JeepForum.com
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post #1 of 16 Old 08-18-2011, 09:28 PM Thread Starter
exigex
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1989 YJ Wrangler 
 
Join Date: Jul 2011
Posts: 9
Help identifying random things in engine bay...

So I'm trying to clean up the mess the previous owner left this YJ in.
Here are some random wires, hose, connectors, and maybe sensors that are not connected and I don't know what they are.
Any one know what they are?
Some of them might just be extra wires and stuff that I can get rid of, I just don't know..

Thanks







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post #2 of 16 Old 08-18-2011, 09:40 PM
oldtime_ironman
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1991 YJ Wrangler 
 
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I think the last pic is your 4WD vacuum harness.
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post #3 of 16 Old 08-18-2011, 09:41 PM
dancytron
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1990 YJ Wrangler 
 
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Third picture is the sensor that turns the 4wd light on.
The last picture is the vacuum lines that control the CAD (vacuum motor) that locks the front axle when you are in 4wd. Red line with the check valve is the source of vacuum. Blue line is a vent and should be open or have a filter. Other two should run down to the axle.

Do you have a posilok or solid front axle? If you do, then that stuff is extra and you can take it out.
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post #4 of 16 Old 08-18-2011, 11:09 PM
jth0033
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1987 YJ Wrangler 
 
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Location: Downingtown
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Quote:
Originally Posted by exigex View Post

I was always told this is if your Jeep came with a hardtop with a rear wiper, there would be another windshield fluid bottle


Looks like the plug from A/C...


Sensor for 4wd light


Coil


Vacuum lines for front vacuum motor
Hope this helps some.
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post #5 of 16 Old 08-18-2011, 11:41 PM
Xpress
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1996 ZJ 
 
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Garage
The last pic is the vacuum lines. The red line is what plugs into the manifold, and the bit on the end is supposed to be on the blue line. It's the vacuum check line. The yellow lines should run down to the shift motor, then one line should run back up to the 4WD sensor (blue thing in the 3rd pic). The green line is what disengages the shift motor to disengage the axle.

I have the same plug in the 2nd pic just floating around too. I guess it was for AC?

All about that unibody life.
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post #6 of 16 Old 08-19-2011, 09:33 AM
JSahara00
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2000 TJ Wrangler 
 
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He doesnt know much about this thing and the PO was no help whatsoever he kept telling us its a 4 cylinder.. so any help to get this thing back into proper running order is greatly appreciated.. did they have those funny vaccum disconnect front d30 in these? is that what that red line is for?

00 TJ, OME shocks, all currie control arm, OME steering damper, Brown dog MML, VIAIR OBA with 2 quick disconnects at the doors, jks quick discos, Kolak exhaust, 30 spline D30 w/ ARB and 4:56, 8.8 w/ super 88 and ARB, home made F/R bumpers and tire carrier,OME zj front springs and OME Lj rear springs, CB w/ firestick, DIY highline fenders/hood, 35 pro comp mud terrains, cragar soft 8s .. .

95 XJ 4.0 4x4 Auto, V8 ZJ steering linkage
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post #7 of 16 Old 08-19-2011, 09:51 AM
dtn8tr
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1997 TJ Wrangler 
 
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Yes there is a vac disconnect on your YJ unless it has been modded with a TJ/XJ shaft.

1997 TJ, 5" IRO front with 4.5" HD IRO WJ rear, 35x12.5x15 Mickey Thompson MTZ, JKS disconnects
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post #8 of 16 Old 08-19-2011, 10:41 AM
oldtime_ironman
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Quote:
Originally Posted by JSahara00 View Post
He doesnt know much about this thing and the PO was no help whatsoever he kept telling us its a 4 cylinder.. so any help to get this thing back into proper running order is greatly appreciated.. did they have those funny vaccum disconnect front d30 in these? is that what that red line is for?
Yeah they had the vacuum disconnect. That's what those lines are in the last pic.
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post #9 of 16 Old 08-19-2011, 10:42 AM
JSahara00
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thanks that will be helpful... these yj's are wierd compared to the tj im used to hahahaha i am a fan of the leaf springs though..

00 TJ, OME shocks, all currie control arm, OME steering damper, Brown dog MML, VIAIR OBA with 2 quick disconnects at the doors, jks quick discos, Kolak exhaust, 30 spline D30 w/ ARB and 4:56, 8.8 w/ super 88 and ARB, home made F/R bumpers and tire carrier,OME zj front springs and OME Lj rear springs, CB w/ firestick, DIY highline fenders/hood, 35 pro comp mud terrains, cragar soft 8s .. .

95 XJ 4.0 4x4 Auto, V8 ZJ steering linkage
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post #10 of 16 Old 08-19-2011, 10:56 AM
jth0033
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Check out the second post here for a vacuum diagram.

http://www.jeepforum.com/forum/f12/f...y-here-451154/
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post #11 of 16 Old 08-19-2011, 05:12 PM
tslroper
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1990 YJ Wrangler 
 
Join Date: Aug 2010
Location: New Mexico
Posts: 379
In the fourth pic that loose wire on your coil is supposed to connect to the condenser (the little canister on the coil bracket) to prevent the ignition system from causing static on your radio.

1990 YJ Islander, 4.2L MC2100 DUI HEI, 2.5" RE lift, 31x10.50 DuraTracs, HandenFab rear bumper / swing-out, Tough Terrain
off-road camp trailer.
Build thread: http://www.jeepforum.com/forum/f22/tys-yj-build-1502554/
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post #12 of 16 Old 08-19-2011, 07:33 PM Thread Starter
exigex
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cool thanks for the info, hopefully get a lot of work done this weekend.
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post #13 of 16 Old 08-19-2011, 09:04 PM
JSahara00
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2000 TJ Wrangler 
 
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Location: mass
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Hey justin have fun in two weeks I can come up and help you.. ill bring the fluids

00 TJ, OME shocks, all currie control arm, OME steering damper, Brown dog MML, VIAIR OBA with 2 quick disconnects at the doors, jks quick discos, Kolak exhaust, 30 spline D30 w/ ARB and 4:56, 8.8 w/ super 88 and ARB, home made F/R bumpers and tire carrier,OME zj front springs and OME Lj rear springs, CB w/ firestick, DIY highline fenders/hood, 35 pro comp mud terrains, cragar soft 8s .. .

95 XJ 4.0 4x4 Auto, V8 ZJ steering linkage
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post #14 of 16 Old 08-20-2011, 07:40 PM Thread Starter
exigex
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1989 YJ Wrangler 
 
Join Date: Jul 2011
Posts: 9
****s all good, cleaned up the hoses and wiring and installed new starter and it starts and runs pretty nicely except the oil pressure gauge still doesn't work (just goes all the way as soon as it is turned on and stays there) need to look into that.
then steering shaft, e-brake, horn, oil pan gasket, and all fluids...and it will be ready for the winter.
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post #15 of 16 Old 08-20-2011, 10:58 PM
tslroper
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1990 YJ Wrangler 
 
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Location: New Mexico
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Replace the oil pressure sending unit and you'll get a proper reading. Theyre cheap and fail often.

1990 YJ Islander, 4.2L MC2100 DUI HEI, 2.5" RE lift, 31x10.50 DuraTracs, HandenFab rear bumper / swing-out, Tough Terrain
off-road camp trailer.
Build thread: http://www.jeepforum.com/forum/f22/tys-yj-build-1502554/
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