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Old 10-23-2019, 05:29 PM   #1
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Holiday Rambler Owners Club
Join Date: Feb 2017
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Radiator cleaning

I want to clean my radiator has anybody used air conditioning coil cleaner to clean their engine radiator thank you

08 Holiday Rambler endeavor skq 400 Cummins
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Old 10-24-2019, 09:49 AM   #2
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Old 10-24-2019, 06:51 PM   #3
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More info please. What is it and where to get it. Is it just a degreaser or is it something special.
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Old 10-24-2019, 08:02 PM   #4
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It is called air conditioner coil cleaner you can buy it pretty much anywhere you spray it on it's a foam let it sit for 10 minutes then wash it off I've used it on my air conditioner coils it worked great was wondering if anybody has used it on their engine radiator and charge air cooler
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Old 10-24-2019, 09:45 PM   #5
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I have used it twice. I bought it at the big box store. I was surprised how much dirt actually came out of the radiator. I donít know how effective it would be on a very oily or greasy radiator, but it definitely got a lot of dirt out of mine.
2006 Monaco, Camelot 40 PDQ, 400 ISL
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Old 10-27-2019, 02:12 AM   #6
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I use engine shampoo and a pressure washer with this caveat - not much pressure !!

I soak the rad and let it sit for 15 or 30 mins and then fire up the pressure washer and stand the right distance away so that I don't damage the rad. I want more pressure then just the water hose. Probably the best example of what I'm looking for in the way of pressure is a wand wash at a car wash.

This has worked very well for 20 years on our DP. I also change the coolant filter and get the ones with the pellets that maintain the right PH level so that nothing rots out. So far, the rad is 20 years old and still going strong!


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