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Discussion Starter #1
I had the trans rebuilt and the fluid is gray not red oil isn’t burnt also it is “flaring” engine revs alittle between sec and third. I took the truck back to the trans shop and they didn’t know what would cause the issues any ideas?
 

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Obviously they screwed it up, take it back.
 
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Sound like the shop has some explaining to do, definitely not good
 

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Does the fluid smell like ATF, assuming it's not burnt?
 

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It's hardly the heat exchanger has failed and is allowing coolant into the trans oil?. I've seen it many times in engines and the oil turns grey.
 
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Yup, water.
 

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Heat up a piece of metal and place a drop of fluid on it. If it pops and crackles then it is water.
 
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