Identification for 4 or 6 - JeepForum.com

 
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post #1 of 6 Old 02-25-2009, 01:27 PM Thread Starter
brichardson7
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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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post #2 of 6 Old 02-25-2009, 01:43 PM
ElvisV04290
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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.

1990 YJ, Colorado Red with 'Laredo' markings, 4.2L, TF999, NP231, Valvoline Syn fluids, Weber 32/36, Nutter Bypass, Dana 30/35, 16" Electric Fan, Optima Yellow Top, 140amp alt., K&N Air Filter, Cherry Bomb muffler, SRC Front Bumper, CH&F Shackles, KC 100w Daylighters, Homemade Lightbar, Rear Aux lights, Cobra CB/PA/WX, 102" Whip Ant., 400 watt power inverter, 2 fire extinguishers, Mobile Internet & WiFi equipped.
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post #3 of 6 Old 02-25-2009, 01:49 PM
Jkanly
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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... ?

l _____
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,[____],
l---L –0lllllll0-

()_)-()_)--o-)_)
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post #4 of 6 Old 02-25-2009, 01:56 PM
kloppk
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post #5 of 6 Old 02-25-2009, 05:28 PM
laybackman
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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!

Do you know what was good about the good old days? I wasn't good, And I wasn't old!

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post #6 of 6 Old 02-25-2009, 06:16 PM
jeepdude1987
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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.

1987 Wrangler YJ RED 4.2 5-speed, NP231, BFG 31x10.5R15 AT/KO on 15x8 gambler wheels.
Caution!!! Under construction!!!!!! Caution!!!
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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