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Old 02-27-2014, 02:26 PM   #1
Woody's Avatar
Join Date: Jun 2002
Location: Woodstock, Georgia
Posts: 43
Coolant reservoir

Seems while our RV was stored for the winter our coolant ran dry. There is gunk in the bottom of the tank. Has this happened to any one and can we just add coolant to it or will the tank need to be flushed?

Woody & Sandi

2005 Itasca Horizon, 40AD, 2005 Chevy Silverado
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Old 02-27-2014, 02:45 PM   #2
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Loren Rice's Avatar
Join Date: Nov 2012
Location: Ridgefield, Wa.
Posts: 226
If it's been a few years since your system was flushed --you might be wise to go for a flush. The engine is made of cast iron,other metals, gadgets, and there is a tendency over time for the system to generate a certain amount of residue. The anti freeze chemical package breaks down and so to flush according to type of antifreeze is needed. If you have the regular green type I understand it needs flushed and changed out every 2-3 years. If you have the long life red stuff it's more like 5-6 years.
So you need to know what type of antifreeze you have , but to answer your question for now you might first look under your rig and see if there is an obvious leak, and fix that as necessary. But if your system was a little on the low side when you stored your rig maybe when the system thoroughly cooled the level dropped to it's present level and nothing is seriously wrong. So if that's the case think I'd add a little distilled water till it starts to build a level in the surge tank. Then you might stir up the junk and if you have a wet and dry vac suck that stuff out. Then think I'd put back just enough distilled water to again be able to see there's coolant in there and start the engine. Now when the engine runs you'll be able to see the color of the coolant and even get a sample and have it tested for 50/50 level and if it 's red do the strip test. Sometimes there's a sticker telling you that the cooling system has a certain type of antifreeze in it and a date installed. If it's there that will help make your decision.
Hope I've helped.

94 Monaco Sig m11 elect fuel inj
95 Jeep toad
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Old 02-27-2014, 02:55 PM   #3
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Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 6,238
If you have gunk on the bottom I would flush it. Why take chances it could cause a clog? Preventive maintenance beats repairs.
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee,with Hemi, hooked up with a Blue Ox Aventa LX, and Brake Buddy.
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