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Old 03-14-2009, 11:21 PM   #1
Join Date: Dec 2008
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Newbie Questions


Not a present Jeep owner but hope to be within a year or so. I love them. Have some questions I have wondered about. This seems like the best place to have them answered.

Live in Indiana and I have to deal with cold winters. Do soft top jeeps stay warm? I heared they do but i'm looking for more than one person's opinion.

One thing I really think i'd want to do is put a diesel engine in it. What are your thoughts on this? I am a big fan os diesel powered vehicles and would be willing to spend the extra dollars to make a diesel powered jeep. What diesel engine would you recommond in a jeep? How much do you think it would cost?

Main reasons for wanting a diesel is improved MPG and the fact that they last longer.

Any other general suggestions you would give to a first time jeep owner?

Thanks in advance to anyone with advice.
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Old 03-15-2009, 07:49 AM   #2
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I live in the Boston area, and yes the tops do stay warm. Sorry, can't tell you about the diesels though.

Check us out at

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Old 03-15-2009, 08:58 AM   #3
that's what she said

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the soft tops stay just as warm as the hard tops in the winter. i can't answer you questions about the diesel, but i do know that there are some guys who have done that swap. you can do a search for the threads and possibly get some answers there too.
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Old 03-15-2009, 09:02 AM   #4
that's what she said

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i did a thread title search for diesel and there are what came up:

hope this helps.
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Old 03-15-2009, 09:07 AM   #5
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where you at in Indiana??
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Old 03-15-2009, 09:13 AM   #6
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reevesdieselyj is the man on this one. he's not here much though. cummins 4bt is the engine.

Here is my diesel YJ fuel mileage log,pic,and mods, updates
"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president."
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Old 03-15-2009, 09:55 AM   #7
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Originally Posted by Lancem View Post
where you at in Indiana??
Somewhat close to Ligonier. Just south of Fort Wayne in Decatur.

Thanks for the replys. I will defiantly be checking out the links and other threads.
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Old 03-15-2009, 10:48 AM   #8
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Here is another thing I don't know of.

Who would you take it to for a diesel conversion? I would not do it myself but I don't know who I would take it to.

Also what do you guys think of manual diesels in a Jeep? That is defiantly what I would want but I think it might be hard to come by. IDK.
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Old 03-15-2009, 11:16 AM   #9
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Not really. There are a lot of people swapping diesels into their rigs with manual transmission. You can get adapters to go from the 4bt to just about anything. I prefer manuals over autos, and when I do my Cummins swap, I'll be running a manual transmission or 2.
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Old 03-15-2009, 05:36 PM   #10
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im from kokomo and i have no problems in the winter with my softtop.. but ive only ran it like once or twice in the winter with the softtop.. mainly bc my mom broke my back window to my hardtop.. either way the heaters in the jeeps are AMAZING..
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Old 03-15-2009, 08:25 PM   #11
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I upgraded to the Sailcloth Replace-a-top Huge improvement over stock. Had it for 2 winters and love it.
93 YJ 3.5 lift 31x10.50 Dunlops on soft 8s 8K winch Tj Ft bumper RRC rear bumper w/tire mt RRC rock rails TJ flares'dual Optima red topsw/homemade relay/jumpstart mode Congo cage and Garman Wilderness rack. CB and Fireband 2-ways undercover LED red lites and siren. Full EMS gear including 02 and AED A work in progress never finished!!!!
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Old 03-30-2009, 09:51 PM   #12
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My 1990 YJ had almost no heat, until today.
I found out about a better blower motor from a chevy truck. Turns out autozone lists the same unit for the YJ replacement part # PM102. $19.99

( If you do this mod, be very careful with the heater core. Cut the hoses of the core, don't try to loosen them!)

This motor is larger in diameter, & needs the firewall hole enlarged a little.

Easy to do, only took me 1-1/2 hours.

The YJ's came with such a wimpy blower, that this must be what you are hearing about cold jeeps.
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Old 04-03-2009, 11:40 PM   #13
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I don't think there is any difference either. Mine came with both soft and hard top and i sold my hardtop about a year after i got it. So much easier just being able to drop the top whenever you feel :o)

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