Water Pump Change /Coolant Supplement Question
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Northstar Engines and System Technical Discussion Discussion, Water Pump Change /Coolant Supplement Question in Cadillac Engine Technical Discussion; I got my water pump changed and the coolant was changed in the process. The thing is, a month or ...
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    blunted is offline Cadillac Owners Enthusiast
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    Question Water Pump Change /Coolant Supplement Question

    I got my water pump changed and the coolant was changed in the process. The thing is, a month or so before I had it done I had replaced the coolant and added the Bars Leaks pellets. My question is, do I now need to add more pellets? or did the pellets I put in a month prior go thru the system and do their job already. Many thanks for any advice on the issue.

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    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Water Pump Change /Coolant Supplement Question

    you should replace them every time you change coolant.

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    blunted is offline Cadillac Owners Enthusiast
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    Re: Water Pump Change /Coolant Supplement Question

    Thanks for the response Ranger. That's what I originally assumed but then again isnt there a chance 12 pellets in 3 months would clog your heater core or something? I thought the Bar's Leak is something you put in and it goes thru the system and does its job .. or am I wrong and is it something that is constantly circulating thru the coolant and once you drain it it's gone?

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    Ranger's Avatar
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    Re: Water Pump Change /Coolant Supplement Question

    Well, as I recall Anthony Cipriano's explanation, the sealant tabs (or bars Leaks) is ground ginger root. It "circulates through the system and does it's job". Over time the water pump impellers chop it up the fibers so fine that it becomes ineffective, so it is recommended that it be replaced with each coolant change. The fibers are small and light enough that I believe most of it should come out with a simple drain. I doubt they would clog up any high flow areas. I do not know how much flow is through the heater core. If you look in your surge tank (overflow tank on a 4.9) you will see some brown "sludge". That is the disolved tabs. The tank is a low flow area. If you really wanted to be sure, you could flush it but I have never heard of that being recommended. Just drain and refill.

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    blunted is offline Cadillac Owners Enthusiast
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    Re: Water Pump Change /Coolant Supplement Question

    Any other opinions on this matter? About to throw in the extra tabs.. just wanna make sure i dont read a "i wouldnt do that" after its done. Many thanks to everyone throwing their 2cents in.

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    JimD is offline Cadillac Owners Connoisseur
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    Re: Water Pump Change /Coolant Supplement Question

    Quote Originally Posted by blunted
    Any other opinions on this matter? About to throw in the extra tabs.. just wanna make sure i dont read a "i wouldnt do that" after its done. Many thanks to everyone throwing their 2cents in.
    Put the coolant supplement in there. Wal-Mart usually carries a product that I prefer to use for simplicity and availability. See product G12BP on this page
    http://www.barsproducts.com/origin.html I use two tubes each time.

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    Anthony Cipriano is offline Cadillac Owners Fanatic
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    Re: Water Pump Change /Coolant Supplement Question

    You need to add fresh coolant supplement any time the coolant is replaced. The supplement is lost when the coolant is replaced so it needs to be replenished along with the fresh coolant. Make sure you put the supplement into one of the radiator hoses not the surge tank. Putting it into the surge tank wont allow it to circulate through the sytem and possibly cause problems with restricting flow to the water pump from the surge tank.

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    blunted is offline Cadillac Owners Enthusiast
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    Re: Water Pump Change /Coolant Supplement Question

    Off to go throw those tabs in there. Thanks for the help everyone!

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