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Unread 02-25-2009, 12:27 PM   #1
brichardson7
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Join Date: Feb 2009
Location: SNJ
Posts: 1
Identification for 4 or 6

I'm in the market for another YJ since having my son. (Finally, another Jeep). While scanning local ads and of course craigslist for YJ's for sale, I use pictures I see for some basis as to whether or not I go and look at the YJ closer.

With that said, is there any way to tell if a YJ's a 4 or 6 cyl with out popping the hood? I have found a few I liked but doesn't give a motor size. With my 89 I had it had the side steps that blended into the fender flairs(Sahara). Are the side steps an indicator? Please help. I miss my Jeep.

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Unread 02-25-2009, 12:43 PM   #2
ElvisV04290
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1990 YJ Wrangler 
 
Join Date: Mar 2006
Location: Macomb, Illinois
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Most 4.0s have a sticker on the back right under the tail light that says 4.0. I guess that's one way to tell.
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Unread 02-25-2009, 12:49 PM   #3
Jkanly
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Join Date: Apr 2008
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for a 4cyl the oil pan would be farther back in the engine bay, and there is about an extra foot of room between the rad and the accessory brackets. Other than that, front driveshaft is quite a bit smaller and shorter than the 6.

You can also check the vin... ?
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Unread 02-25-2009, 12:56 PM   #4
kloppk
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1992 YJ Wrangler 
 
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Location: Massachusetts
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VIN decoder....
http://jeep.avtograd.ru/VIN/vin_en.asp
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Unread 02-25-2009, 04:28 PM   #5
laybackman
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1995 YJ Wrangler 
 
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Quote:
Originally Posted by brichardson7 View Post
I'm in the market for another YJ since having my son. (Finally, another Jeep). While scanning local ads and of course craigslist for YJ's for sale, I use pictures I see for some basis as to whether or not I go and look at the YJ closer.

With that said, is there any way to tell if a YJ's a 4 or 6 cyl with out popping the hood? I have found a few I liked but doesn't give a motor size. With my 89 I had it had the side steps that blended into the fender flairs(Sahara). Are the side steps an indicator? Please help. I miss my Jeep.
If it isn't brand new I would make no assumptions about what is actually under the hood given the extent that mods can be done to them!
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Unread 02-25-2009, 05:16 PM   #6
jeepdude1987
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1987 YJ Wrangler 
 
Join Date: Dec 2007
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There isn't really a way to tell which engine there is unless it says 4.0 on the body, and that is no garuntee.
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[COLOR="Red"]1987 Wrangler YJ RED[/COLOR] 4.2 5-speed, NP231, BFG 31x10.5R15 AT/KO on 15x8 gambler wheels.
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Finishing a 4.0 Cyl.head swap, Just got an AX-15 NP231J combo to replace the busted t-case and craptacular BA10/5. Adding Nutter bypass. Probably more to come before it is back as a DD!
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