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Old 02-28-2013, 05:01 PM
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Engine block corrosion

I just purchased a 2010 Rubicon. Everything looked great in the engine compartment when I checked it at the dealer. I looked in there again this morning and saw a white powdery substance over all of the aluminum parts on the engine. I have heard it can be caused by leaving engine degreaser on too long (I'm sure they gave it a good cleaning at the dealership). I'm not sure how much of this white powder is normal but it seems like a lot to me. I have heard of people cleaning their blocks with muratic acid and then using a protectant of some kind, and I have also heard people say to leave it alone because the powder actually helps protect the aluminum from further corrosion. Any ideas?
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Old 02-28-2013, 05:06 PM   #2
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Not sure I can help...

But I have to ask....was the Jeep ever loaned out to this guy?


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Old 02-28-2013, 05:14 PM
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Could've been. That would explain the chainsaw I found in the back seat.
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Old 03-01-2013, 09:36 AM   #4
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Sandy flood victim sent to the midwest? Get a Carfax!
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Old 03-01-2013, 09:47 AM   #5
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Sounds normal to me, I have white powder all over the aluminum parts also. My rig is less than a year old.
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Old 03-01-2013, 11:01 AM   #6
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Quote:
Originally Posted by MikeK46 View Post
Sounds normal to me, I have white powder all over the aluminum parts also. My rig is less than a year old.
Same here. All exposed aluminum parts have some level of oxidation on my 1 year old '12. No pitting or anything, but normal aluminum "white powdery" oxidation.

Of course the prior owner driving through a pile of cocaine could be possible as well; just lick the block, if you tongue goes numb you've found your answer.
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Old 03-01-2013, 06:24 PM
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Carfax said it came from Texas so no flood damage. Thanks for the responses. I guess it's normal, I just wanted to be sure.

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