Jeep Grand Cherokee 2015 - Salt water crossing - AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand


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Old 26-06-2018
NateB  NateB is offline
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Default Jeep Grand Cherokee 2015 - Salt water crossing

Hi guys,

I got caught by the tides on Moreton over the weekend and had no choice but to drive through salt water. The water was approx halfway up the rims and the crossing took maybe 1 minute or less. I've been told by some that I should get the riffs drained and refilled. Others have said it's not neccessary. Any advise would be much appreciated as I'm concerned what damage I may have caused or will cause if I leave it. Cheers Nathan

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Old 26-06-2018
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I honestly don't think there will be an issue. I've had to do it myself in a JK Wrangler in a lot deeper water than that with the water over the bonnet without a problem.

However if you are worried just undo the fill plug on your diffs and stick your finger in. You should be able to get enough on your finger to tell if you have had any water ingress.

If the oil is clear then don't worry, if it is milky, than get your diffs drained and re-filled as soon as possible.
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Old 26-06-2018
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If it's only half way up the rims you should be fine, where are the breathers on the new Grands?
If it was half way up the doors, then maybe a different issue.

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Cheers guys appreciate the advice.
@Grippy not sure where breathers are located
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Old 26-06-2018
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You really ought to spray the underside of the car with fresh water to get all the salt out. A garden hose is the easiest but a proper spray booth is best. If you don't all the exposed bits of metal will begin to rust.

All your diffs, transfer case etc will have breathers.
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Will be fine, give it a rinse when you get a chance.
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Find a fresh water crossing and drive through that a dozen times or so, that should give it a good rinse

The first 2 time should be enough to rinse off the salt the other 10 are just for fun
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Old 27-06-2018
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Having been in the anti corrosion industry for thirty years for aircraft,mining,autos I can assure you that not doing anything is a recipe for future corrosion in the vehicle.Salt water will have penetrated every seam it could have got into,plus steel and aluminium are porous.As a previous post said flood the salt water effected areas with a hose etc then at least spray a water displacing fluid in all areas .A good option is to spray with SaltAway or similar available from Whitworths Marine.Saltwater will start to discolor cad plating coated parts plus alloys in a few days.Take the wheels off and treat contact area between discs and wheels ,have seen these nearly welded together.Our 4x4 rustproofing operation in Brisbane continually saw the results of driving in salt water.
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