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Chemical Coolant System Cleaning

 
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MadDogJacoby



Joined: 26 Apr 2019
Posts: 5
Location: WA

PostPosted: Fri Apr 26, 2019 12:19 pm    Post subject: Chemical Coolant System Cleaning Reply with quote

Does anyone have experience power flushing their coolant system?

I'm talking the soap & water flush, then sulfamic acid & flush, then oxalic acid & flush, then baking soda to neutralize, then distilled H20 flush.

Bypass the heater core, remove the thermostat, anything I'm missing? Maybe a new head gasket before?
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palmerwmd
Site Admin


Joined: 31 Jan 2017
Posts: 810
Location: Virginia

PostPosted: Sat Apr 27, 2019 6:28 am    Post subject: Reply with quote

Maddgo..
this sounds like something me and a roomie did many years ago on an ancient BMW.
And in theory it should do some good.

But I will defer commentary to our proper resident expert smj.

Are you having overheat issues? Or just leery of extra deposits in the nooks and crannies of your cooling system?
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2012 V6 4WD, in Grey over Grey
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MadDogJacoby



Joined: 26 Apr 2019
Posts: 5
Location: WA

PostPosted: Sat Apr 27, 2019 3:09 pm    Post subject: Reply with quote

I had fixed a coolant leak earlier. But then I saw that more coolant was leaking after I had stopped the vehicle. Seemed like the coolant leak was cuz of the water pump going bad.

It was about that time for the timing belt anyways, so I decided to bite the bullet. On teardown saw that the thermostat either rusted shut or perhaps closed permanently after earlier overheating. Wanted to clean that sucker out before I put the new water pump in there

Many questionable things have been uncovered, such as finding the end of a wire brush in one of the air pipes in the front.
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Heavy hitter



Joined: 30 Dec 2018
Posts: 26

PostPosted: Mon May 20, 2019 8:16 am    Post subject: Reply with quote

nothing sketchy about the wire brush. its supposed to be in there
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smj999smj
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Joined: 22 Jan 2012
Posts: 5321
Location: Prospect, VA

PostPosted: Wed May 22, 2019 11:41 pm    Post subject: Reply with quote

Yes, the "wire brush" is factory installed and is called a "flame arrestor."
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2006 Pathfinder LE VQ40DE AWD, aftermarket radiator, Airlift 1000's, Bilstein HD rear shocks, Doug Thorley shortie headers and mid-pipes, Magnaflow 12580 muffler, aFe Momentum GT CAI w/ dry filter, XTP plenum spacer, Superchips Flashpaq tuner
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