What should I look out for when buying a 90' YJ with a 6cyl. automatic? - JeepForum.com

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post #1 of 6 Old 12-06-2001, 05:50 AM Thread Starter
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What should I look out for when buying a 90' YJ with a 6cyl. automatic?

A friend of mine wants to buy this 90' Wrangler that has a carburated 6cyl. with a automatic tranny. He asked me to tag along since I have two Jeep Wranglers. The problem is... One of my Jeeps is a fuel injected 4cyl. manual, and the other is completely modified from the ground up. So, for you guys that have experience with the carburated 6cyl. automatics... we need your help with some advice on what to look for, and what to watch out for. Thanks guys, Andy

PROJECT: 3/4 ton, NP205, TPI-V8, 91'YJ Wrangler
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post #2 of 6 Old 12-06-2001, 06:51 AM
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I have a 90 YJ but it's standard. The only thing I can tell you, is don't be surprised if it idles very rough. Very common problem with the carbed Jeeps. Not much you can do about it, short of replacing the carb.

90 YJ...Stock for now.
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post #3 of 6 Old 12-06-2001, 07:36 AM
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I own a 90 automatic... best advice I could give is don't buy one...

I recently have had a huge amount of problems with my carb, cat, muffler, exhaust/intake values etc.

Read the other posting on site.. alot talk about similar problems with the 90's and their carbs.

The only reason I haven't sold mine and bought a newer model is it only has 42,000 miles on it.
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post #4 of 6 Old 12-06-2001, 07:42 AM
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HMM.. An automatic Jeep??? Do they make such a thing?

93' YJ
00' TJ
02' KJ
04' Dodge Ram

"Jeep mechanic wanted: must be able to put square peg in round hole"
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post #5 of 6 Old 12-06-2001, 10:18 AM
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Originally posted by AtRoPiNe:
HMM.. An automatic Jeep??? Do they make such a thing?
Frightening, ain't it? A whole whopping 3-speed. I'd hate to have one of those suckers with tall gears...

'94 YJ Sahara Hardtop
4.0L / AX-15 / Stock NP231 / Stock D30 (open) / D60 (35-spline, Detroit locker, Moser axles) / rear disc brakes / 4.56 gears / Advanced Adapters SYE & CV Shaft / 33" BFG MT-KM's / Thorley Header / Magnaflow Muffler / BesTop Flares
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post #6 of 6 Old 12-15-2001, 07:54 PM
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I have a 89 YJ with an automatic and I have the idling problem but there is a fix for it is this forum within the last 45 days or so.
There is also info addressing this @ http://www.off-road.com/jeep/tech/engine/carter.html or http://www.off-road.com/jeep/tech/engine/carter.html Ther is a great amount of info on the fix for this system. Also check into the Juice Box ignition system. With both of these modifications it should aid your stiuation greatly at a cost of about 120.00 +shipping.
So far I'm happy with my Jeep but it will be much better when the mods are done. As far as the automatic goes it works well off road crawls realy well, but I'm not doing realy radical stuff like some of these guys cuz I have to drive it back and forth to work. Eventually I plan on adding a 4.0 head they say this will add about 40 HP. These things realy are under powered with the auto trans, but it sure works great off road.

89 YJ about to get Juice Box and carb fix 4" lift 2"BL 33" swampers
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