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Old 10-23-2013, 07:11 PM   #1
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What To Do First? '94 YJ

Sooo, I might need to change my username from Almost Jeep Owner...

I bought a '94 S 4.0 L AMC 242 on Saturday and am wondering where to start.

It seems to run good at the moment, but am most likely going to hook it up to a Diagnostic machine and find out whats really going on under the hood.

If anyone else has any suggestions on what I should put energy into at this point, let me know.

I am going to check out the Common Issue thread as well.

Thanks!

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Old 10-23-2013, 07:23 PM   #2
Guesses a lot ;)

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I always start with all new fluids and a basic tune up. After that its all about what breaks and what you want to do with it. What are your plans for it? Pics?

Some cool, easy, fairly cheap mods are the 1" BL, 1" MML and 1" shackle lift. I would recommend doing the BL and MML together. Then shackles whenever you have money and time...

Also fill out your sig so folks have some basic info on the rig...

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Old 10-23-2013, 07:26 PM   #3
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[QUOTE=Almost_jeep_owner;5602482]Sooo, I might need to change my username from Almost Jeep Owner...

I bought a '94 S 4.0 L AMC 242 on Saturday and am wondering where to start.

It seems to run good at the moment, but am most likely going to hook it up to a Diagnostic machine and find out whats really going on under the hood.

If anyone else has any suggestions on what I should put energy into at this point, let me know.

I am going to check out the Common Issue thread as well.
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Old 10-23-2013, 07:39 PM   #4
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Basics check on fluids and change. Anticipate non-maintenance on underneath fluids (trans, tcase, diffs).
Clean pvc and throttle body with electronic intake cleaner. Pay attention to the IAC on the side of the throttle plate. New cap/rotor/plugs.
Change fuel filter.
Check serpentine belt, battery connections, and battery tray (rusty, holes, decay).
Suck and replace with new fluid - brake and clutch reservoir.

Plan out what you like to do with the YJ for street and wheeling. Come up with a plan to upgrade components as necessary to reach this goal.
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Old 11-06-2013, 04:02 PM   #5
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Thanks for the advice! I put it on a diagnostic machine and the mechanic said I might have a blowby. I've been reading up on it and some say it is a quick fix, so will keep updated.

B W R
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Old 11-06-2013, 04:04 PM   #6
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Ahhh the first fix of many.
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http://www.wranglerforum.com/f330/pr...ml#post7159753
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Old 11-06-2013, 05:15 PM   #7
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I'm confused. Your original post says you picked up a '94 4.0, but your signature says you have a 4 banger.

Blow by is a potentially serious issue. Hopefully you just need to clean the CCV, but be prepared for a rebuild in the future if that doesn't cure the problem.
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Old 11-06-2013, 09:22 PM   #8
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Plugs, wires, distributor cap & rotor, oil change( engine, trans, t-case, axles) change air & fuel filter, grease all fittings, change antifreeze, check brakes, make sure your tires are correct psi (it'll help mpg maybe not noticeably but some, plus your tire wear), check for leaks (oil, antifreeze, vacuum), & check for excessive play in all bushings, joints, etc. & Happy Jeeping!

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