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Old 03-23-2014, 11:59 PM
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How deep in my Jeep!

Hi all, I have a 2012 Grand Cherokee Overland. With the suspension on its highest setting, what would you consider a safe depth to wade/cross?
50cm? 60cm?
I've had a quick search but I'm now more confused!
If anyone could share their experiences with what they have crossed (creeks/rivers and how deep etc) it would be very much appreciated.

Or even point me in the direction of a thread with a definitive answer. thanks all - I'm sure this has been covered many times - but please cut a newbie some slack

Thanks again
Mark
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Old 03-24-2014, 03:12 AM
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Re: How deep in my Jeep!

This is what the owner's manual says:

"Your vehicle is capable of water fording in up to
20 inches (51 cm) of water, while crossing small rivers or
streams. To maintain optimal performance of your vehicle’s
heating and ventilation system it is recommended to switch
the system into recirculation mode during water fording."

"Driving through water more than a few inches/
centimeters deep will require extra caution to ensure
safety and prevent damage to your vehicle. If you must
drive through water, try to determine the depth and the
bottom condition (and location of any obstacles) prior to
entering. Proceed with caution and maintain a steady
controlled speed less than 5 mph (8 km/h) in deep water
to minimize wave effects."

"After driving through deep water, inspect your vehicle
fluids and lubricants (engine oil, transmission oil, axle,
transfer case) to assure the fluids have not been contaminated.
Contaminated fluid (milky, foamy in appearance)
should be flushed/changed as soon as possible to prevent
component damage."
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Old 03-24-2014, 03:54 AM
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Re: How deep in my Jeep!

Thanks for that. Cheers.
Anyone gone beyond the limits of the owners manual and lived to tell the tale?
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Old 03-24-2014, 06:03 AM
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Re: How deep in my Jeep!

I'm sure you could easily but why run the risk of water intrusion which leads to all sorts of electrical issues
If you want to go swimming in your vehicle you really need something with a lot less computers or none at all
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Old 03-24-2014, 06:11 AM
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Re: How deep in my Jeep!

I'd keep any water crossing to depths below the axles.
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Old 03-24-2014, 10:50 AM
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Re: How deep in my Jeep!

My 2014 Cherokee (not GRAND) Trailhawk specifies 20" max. Fording water is always dicey unless you KNOW the water's depth, and KNOW that there are no hidden rocks, holes, or muddy sections to create problems. {Put on those waders and tie off to a rescue line if you're unsure of depth and/or the water is moving!!!} The breather tubes on the transmission, transfer case and front & rear differentials are part of depth limit - you don't want water entering in the breather tubes contaminating the oil in these critical parts. In addition, there are probably other limiting factors as well - perhaps electronics locations, wiring, etc.

I've been off road and fording (12" max. so far) with my new Cherokee Trailhawk. As usual my local mechanic checked it out afterwards for undercarraige damage. He reported back to me that the breather tubes on the Cherokee Trailhawk are routed up to "door handle" level. Your breather tubes may vary!!!!

Have someone check the breather tube locations on your GC, but remember they're only one of the limiting factors.

Go for it!!!

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Old 03-24-2014, 01:56 PM
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Re: How deep in my Jeep!

20" is quite a bit of water. I don't think I've ever gotten close.
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Old 03-24-2014, 02:07 PM
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Re: How deep in my Jeep!

The depth at which you kill the vehicle is not easy to determine. Sucking water in the intake will kill it quickly, flooding the electronics will kill it slowly.

I once saw a guy destroy a 3 day old Chevy pickup when he tried to cross a river with some other serious 4x4s on a trip here in Colorado. He didn't know how to drive for one thing and had the wrong setup. It sat in the river for two days before they could get back to it with the gear needed to pull it out and drag it miles back out over rough terrain. Unfortunately, the river rose about a foot during that time and it was pretty much totalled. Oh, and his insurance wouldn't cover the damage... It took him years to pay for that mistake.

The moral of the story, NEVER go into water unless you know the depth and the terrain. So, walk it first. Personally, I wouldn't take our Grand Cherokee in over about 6" of water unless I absolutely had to, and I can't imagine that happening. These are just too pricey and complex of vehicles to risk.
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Old 03-24-2014, 03:21 PM
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Re: How deep in my Jeep!

If the water is 20" deep, I'm going the other direction.
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Old 03-24-2014, 04:53 PM
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Re: How deep in my Jeep!

Really? Where i live it doesnt rain hardly ever, but when it does our streets arent made to drain properly and it floods. Does that mean i dont have to go to work? No! Im forced to find the best route i can which can still mean going through 20" of water or more. Im surprised others dont have this same situation. I sold my Toyota Tundra crewcab to buy this Jeep, it hasnt been tested in the water yet but i sure hope it can handle it.
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Old 03-24-2014, 04:56 PM
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Re: How deep in my Jeep!

Quote:
Originally Posted by jrog28 View Post
Really? Where i live it doesnt rain hardly ever, but when it does our streets arent made to drain properly and it floods. Does that mean i dont have to go to work? No! Im forced to find the best route i can which can still mean going through 20" of water or more. Im surprised others dont have this same situation. I sold my Toyota Tundra crewcab to buy this Jeep, it hasnt been tested in the water yet but i sure hope it can handle it.
I'm sure that the Jeep will handle it fine, I wouldn't worry. Just make sure that the water isn't too deep (I bet you can do up to 24" safely, even though the manual says 20") and don't get stuck.
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Old 03-24-2014, 05:03 PM
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Re: How deep in my Jeep!

Quote:
Originally Posted by JeepGCOverland View Post
I'm sure that the Jeep will handle it fine, I wouldn't worry. Just make sure that the water isn't too deep (I bet you can do up to 24" safely, even though the manual says 20") and don't get stuck.

You know the crazy thing was one day the streets had flooded and i was on my way to work in the Tundra, one area on the way was pretty deep i would say around 2 foot. I look in front of me and a Dodge Challenger is heading through! He seemed to get through fine, although i dont know if he had any troubles later because of that. Side note, them cars look tall!
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