Author Topic: Dexcool problems  (Read 10876 times)

Offline 78BIG-TEN

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Re: Dexcool problems
« Reply #15 on: March 02, 2015, 08:55:27 am »
Back in the day I read an article in a trade magazine where Ford was trying to develop a phenolic engine.I was told that by an old radiator shop that it was cause by voltage in the coolant.Every fleet that I worked with checked the coolant with a volt meter,if it had any a flush was done

Offline roundhouse

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Re: Dexcool problems
« Reply #16 on: March 02, 2015, 10:46:41 am »
I've heard the circulating water can build up a small static electricity charge

The 7.3 diesels have issues with cavitation
Around the cylinders
The diesel explosion shakes the water away from the cylinder for a millisecond

When the water rushes back around the cylinder it causes a tiny microscopic bit of erosion of the metal

After many years it can eat a hole thru the metal

There is an additive that was developed to address this issue and it actually works

So before you buy a used 7.3 bring a test strip and see if they additive is present in the coolant


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Offline LTZ C20

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Re: Dexcool problems
« Reply #17 on: March 02, 2015, 02:25:56 pm »
Where there's a cool piece of info I didn't know! Thanks Roundhouse.
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Offline Blazin

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Re: Dexcool problems
« Reply #18 on: March 03, 2015, 06:34:24 am »
Any of my customers that still have Dex Cool in their system I tell them they need to flush it, & go back to green coolant. Have seen dozens of issues with Dex Cool doing just what the pics show.
Some people are like Slinkies. Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs