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Replies: 39
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Tiger Titan [49755]
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Truck coolant system.net
Dec 28, 2020, 10:21 AM
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Didn't have heat in the truck so yesterday I flushed out the heater coil. Didn't do a chemical flush. just put the water hose up to the outlet and back flushed it.
Heat was working find for awhile. Now it's back to warm, not hot last night.
I'm wondering if I just need to go ahead and do a complete system flush.
Apparently, from my buddy who knows just about all there is to know about vehicles, when you put the green antifreeze into a system with the orange factory antifreeze those two mix an create gunk that gums everything up.
Anybody ever had that experience?
What would be the easiest way to completely flush the system without removing radiator hoses etc?
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Heisman Winner [81033]
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You don't want to mix anti-freeze. Best thing to do usually
Dec 28, 2020, 10:32 AM
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is to trade it in for a vehicle made in the past decade or so that is more reliable and possibly even has warranty left. These are problems acceptable on a mud bog truck that gets driven once a month, not my daily driver.
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Tiger Titan [49755]
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Now that the wife has her company car
Dec 28, 2020, 10:33 AM
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that's what this truck is
Plus I only have 6 more years until it's paid off.
I think I'll stick it out
Message was edited by: FBCoachSC®
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TigerNet Champion [112941]
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Orange Blooded [2203]
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Re: Truck coolant system.net
Dec 28, 2020, 10:35 AM
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Sounds like you will have to change the heater core.
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Orange Blooded [2203]
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Re: Truck coolant system.net
Dec 28, 2020, 10:44 AM
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I hope its not burried in the dash
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Clemson Sports Icon [56957]
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This happened to me once when I had radiator leak, which was
Dec 28, 2020, 10:42 AM
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previously unknown. Don't know about mixing two kinds of antifreeze - maybe that's a problem but you can also get same symptoms with heat if you have low antifreeze or an air bubble in it.
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Tiger Titan [49755]
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I burped it and it's holding water
Dec 28, 2020, 10:43 AM
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Maybe another piece of gunk got caught in it, idk. I mean it only takes me like 5 minutes to back flush the heater coil so I may try it again. Just a pain getting to the hose clamps
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Orange Blooded [2203]
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Re: I burped it and it's holding water
Dec 28, 2020, 10:45 AM
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I think its call the heater core not coil but might be wrong.
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Tiger Titan [49755]
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The thing that makes the air hot***
Dec 28, 2020, 10:47 AM
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Orange Blooded [2203]
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Re: The thing that makes the air hot***
Dec 28, 2020, 10:49 AM
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If you are not low on coolant or have a leak then you will have to change it out. Do you know where it is located?
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Tiger Titan [50675]
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Do you know where it is located?
Dec 28, 2020, 4:12 PM
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he doesn't even know what it's called
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Orange Blooded [2203]
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Orange Blooded [2203]
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Re: Truck coolant system.net
Dec 28, 2020, 10:53 AM
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What is the make and model of your truck. Engine and all that stuff?
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Ultimate Clemson Legend [98436]
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If you're considering a real flush of your cooling system...
Dec 28, 2020, 11:32 AM
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it's not that difficult. Flush the engine with clear water from your garden hose, refill the system with a solution of distilled water with a 10% by weight citric acid. Drive the truck for about 20 miles then flush with clear water again, drain the block during that flush to lift and flush all the residue of settlements in the lower block.
Use distilled water and the proper amount of antifreeze of the correct brand recommended by the manufacturer.
I did this last summer but the trim was off the exterior of my car including head and tail lights so rather than driving the car I used a sump pump to flush the engine during a three day cycle. 24 hrs of flushing with fresh water, from a bucket to supply and return the water, and 24hrs of the citric flush with 24 hrs of the distilled water flush. I had to disable the thermostats and fandangle many garden hose to engine cooling hose assemblies.
Here are some pictures of the citric flush process and residue:
I left out a step. You'll need to flush the engine with Shout gel to rid it of the oil in the cooling system. That does two things, it removes the oil and it is the particular type of soap which won't make flushing the soap bubbles out of the engine a nightmare.
Excuse the spelling mistakes and other errors of grammar. I'm quite to the point here.
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Orange Blooded [2203]
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Re: If you're considering a real flush of your cooling system...
Dec 28, 2020, 11:56 AM
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That is impressive. Did you have to change the heater core?
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Ultimate Clemson Legend [98436]
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No, perhaps I should have.
Dec 28, 2020, 12:14 PM
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Obed recommended that I change that core when I had the dash out of the car. I was right there at it and could have done so but I decided a 35 yr old piece of MB original equipment was as good or better than any OEM replacement.
I bought a new OEM radiator and stored the original for future use when and if needed.
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Orange Blooded [2203]
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Re: No, perhaps I should have.
Dec 28, 2020, 12:18 PM
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If you were there I personally would have replaced but that is me.
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Orange Blooded [2203]
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Re: No, perhaps I should have.
Dec 28, 2020, 12:19 PM
[ in reply to No, perhaps I should have. ] |
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What made you go with citric acid instead of vinegar?
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Ultimate Clemson Legend [98436]
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Mercedes Benz Service Manual.
Dec 28, 2020, 12:27 PM
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They specify doing it the easy way, flushing the engine with distilled water, then distilled water and a detergent which they recommend but no longer make, flushing it with distilled water again then flushing with distilled water using a 10% critic acid they sell at the stealership, then flushing with distilled water then filling with MB brand antifreeze in proper solution with distilled water.
The lower block drain plug has to be removed after each step and the automobile should be driven 20+ miles during each step. It might be 100 miles during the citric flush.
I'm forgetting more about this than I remember because it was a new concept to me and I quickly move on to other sub-projects in this endeavor to restore my car.
If FBC wants the link to the directions on how to do this the MB way I can hook him up.
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Orange Blooded [2203]
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Re: Mercedes Benz Service Manual.
Dec 28, 2020, 12:36 PM
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I personally would have used vinegar (acetic acid) but that is me. Cheaper.
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Ultimate Clemson Legend [98436]
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How would you measure the right amount?***
Dec 28, 2020, 5:02 PM
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Orange Immortal [65280]
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Orange Immortal [64885]
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lol i know
Dec 28, 2020, 12:37 PM
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Still waiting on FBCOOCH to ask many lemons he needs to squeeze for a chevy 350 flush
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Orange Blooded [2203]
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Ultimate Clemson Legend [98436]
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I just figured some of you could appreciate a real flush...
Dec 28, 2020, 12:41 PM
[ in reply to 88 thinks FBCoach can comprehend ] |
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which didn't include pulling a toilet lever more than twice.
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TigerNet Immortal [168506]
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Orange Immortal [64885]
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Just wear a jacket and socks with shoes in your truck
Dec 28, 2020, 12:37 PM
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problem solved.
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Clemson Sports Icon [56957]
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Solid advice is solid. Could also just wait til summertime.***
Dec 28, 2020, 12:39 PM
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Orange Immortal [64885]
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Good call, Meatball.
Dec 28, 2020, 12:47 PM
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he could also let one of these bad littlebitches ride shotgun.
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Orange Blooded [2203]
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Orange Immortal [64885]
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or cut a big hole in the fire wall and let that big ole
Dec 28, 2020, 12:48 PM
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cast iron engine block warm the cab.
Also he could route the exhaust in through the cab.
All good ideas
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Orange Blooded [2203]
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Re: or cut a big hole in the fire wall and let that big ole
Dec 28, 2020, 12:57 PM
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Why did I think of that?
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Orange Immortal [62090]
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yes. Happened to my brother. Don't mix the colors.
Dec 28, 2020, 1:44 PM
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he's had a world of trouble since.
The Dangers Of Mixing Green And Orange Coolant
Vehicle engines require coolants to keep them from overheating. In the past, there was only one kind of coolant (anti-freeze) and that was the green liquid. Today, there are two: The green coolant and the orange colored coolant, which is also known as Dexcool. Let’s look at these more closely.
The green coolant is an inorganic additive technology (IAT). With this type of coolant, phosphates along with silicates are added to ethylene glycol. This helps to protect the metals that are in the vehicle’s cooling systems from becoming corroded. There are some IAT coolants that use propylene glycol instead of ethylene glycol.
The orange coolants are organic acid technologies (OAT). These were created for newer vehicles that had more nylon and aluminum parts in them. OAT coolants use organic acids in order to prevent corrosion.
Some people believe that they can mix the two. This is a mistake and can lead to expensive repairs. The two coolants should never be mixed together as they do not react well. When mixed together they can form a thick, jelly-like substance that can completely stop all coolant flow which can lead to overheating. As the coolant stops flowing, other problems can occur as well such as happens with radiators, water jackets, and even heater cores. The water pump may overheat and stop working. In severe cases, head gaskets can blow, and heads may warp. The engine itself will encounter major damage.
https://kernersvilleautocenter.com/the-dangers-of-mixing-green-and-orange-coolant/
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Orange Blooded [2203]
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Re: yes. Happened to my brother. Don't mix the colors.
Dec 28, 2020, 2:20 PM
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Way to go scooter now tell him how to clean out his heater core.
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Orange Immortal [62090]
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oh, he's already done it, wouldn't have asked otherwise
Dec 28, 2020, 2:53 PM
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but now he can wow the mechanic with his knowledge of organic chemistry  ">
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Ultimate Clemson Legend [98436]
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Re: oh, he's already done it, wouldn't have asked otherwise
Dec 28, 2020, 5:04 PM
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Outstanding.
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Ultimate Clemson Legend [98436]
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Tiger Titan [49755]
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Doing a 3 day chemical flush
Dec 28, 2020, 5:45 PM
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some kind of stuff from the store. Suppose to drive around with that in the water for 3 days then flush again.
Switching from orange to green because it's cheaper and easier to get. Plus it tastes better.
Will pull the bottom radiator hose again on Wednesday and refill with green antifreeze. Should be good to go after that
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Orange Blooded [2203]
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Re: Doing a 3 day chemical flush
Dec 28, 2020, 7:33 PM
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Your wife might be adding the green into you mountain dew. You better watch out.
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Replies: 39
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