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Old 03-06-2009, 05:55 PM   #1
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Need buying advice Please help

Hey guys

Currently looking to buy a TJ Wrangler sometme in the next couple of months

I'd like to know what you guys know about how well they perform in water (only up to the bottom of the doors)

I've heard auto's transmissions are waterproof and changing gears while in a manual under water will screw the clutch plate

Is this true? can anyone tell me more about this? please

I ask this as I know for sure Il be driving through water proberly up to past the bottom of the doors

Had to start a new thread didn't want to hijack another

Any hep would be much appreciated!

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Old 03-06-2009, 06:06 PM   #2
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you're probably going to get some mixed responses. i think it has a lot to do with how you drive in the water. if you hit it doing 50mph than you're screwed. i personally love water, mud , and water crossings. i wheel in the pine barrens of jersey so all that is around is water. i have a tj w an auto tranny and have taken it through water that is half way up the doors. what you have to watch out for is you fan clutch. they can sometimes burn out if you hit the water with your engine reving too much and it suddenly slows while hitting the water. this can also be remedied by installing an electric fan and an on/off switch. when you get up to the water turn it off. i'll try to find some pics and vids.

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Old 03-06-2009, 07:58 PM   #3
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So your saying as long as you enter the water at a resonable speed you don't have to install a electric fan? but it's better to have one?

Also is there anything else that I would need to worry about if I drove through water that is half way up the doors?

(just curious does water start pouring in though the doors? not that I'm worried just curious)

Also sorry about all the questions ,I'm fairly new when it comes to this stuff
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Old 03-06-2009, 08:10 PM   #4
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i can't really give you a definitive answer on the fan thing. i have only burned out 1 fan clutch in several years of off roading. if you go in slowly there is less of a chance of burning it out. BTW the fan clutch cost is around $65.

extending the breather tubes on the tranny and diffs are strongly recommended as well. that is a pretty simple task to tackle.

water getting in the jeep depends on how well the seals are on the doors, how long you are stuck or how long you are submerged. jeeps have drain plugs and can be hosed out .
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Old 03-06-2009, 08:17 PM   #5
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You have a few items to consider.

Depending on what year jeep you buy and what tranny and differentials you get, you'll have (or not have) any real problems.

IIRC, the older automatic trannys have a vent hole near the top, so you take your jeep wading, wet tranny equals (usually) a rebuild bill. That can be overcome by welding up that hole and making a tapped vent and run a vent hose up the firewall. I think the year the autos got that vent issue resolved was 2003 or 4, not sure.

I've never had problems taking my manual tranny for a swim in water or mud or muddy water.

Same thing with the diffs. You need to (again, IIRC) vent hoses for them as they are vented with no hoses (Rubicon's have vent hoses however). Generally, even if you foul your diff fluid, if you change it pretty quickly, no harm done.

Entering water at speed is always a good way to prove that you can afford being stupid. Unless you are in a line and know exactly what you are in for, don't charge in or you will end up surprised at some point. Keep the breather/air filter out of the water as if you start getting water in there, you'll hydro lock you're engine and again, be in for a big bill to fix it.
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Old 03-07-2009, 04:53 AM   #6
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Thanks guys an Gal!

Most appreciated ,Will keep all of this in mind

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