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Rose Racing 07-16-2025 06:20 PM
Flush
 
What is the best method for flushing the cooling system at home? Trans builder said to flush the system after finding debris in my trans.

Alan Roehrich 07-16-2025 06:50 PM
Re: Flush
 
Quote:
Originally Posted by Rose Racing (Post 714431)
What is the best method for flushing the cooling system at home? Trans builder said to flush the system after finding debris in my trans.

Most parts stores carry "Cooler Flush", usually, two cans will do the trick to flush a transmission cooler.

CMcAllister 07-16-2025 10:52 PM
Re: Flush
 
1 Attachment(s)
Kooler Kleen

JP1738 07-17-2025 08:25 AM
Re: Flush
 
I don't know if this is good or bad, but historically, I've just sprayed a bunch of brake clean through the lines and blown them out with an air hose. Makes a mess but gets the job done.

dragracerray 07-17-2025 12:49 PM
Re: Flush
 
Quote:
Originally Posted by Rose Racing (Post 714431)
What is the best method for flushing the cooling system at home? Trans builder said to flush the system after finding debris in my trans.
J.T.,
Trans guy wants you to flush the transmission fluid cooler in the radiator or wants you to flush the antifreeze? If you have debris in the transmission fluid cooler side of the radiator some times it is best to install a new radiator. Ray

Mike Pearson 07-17-2025 02:03 PM
Re: Flush
 
Quote:
Originally Posted by Rose Racing (Post 714431)
What is the best method for flushing the cooling system at home? Trans builder said to flush the system after finding debris in my trans.
I dont know anyone running a cooler on a race car. I never have.

pmrphil 07-17-2025 03:29 PM
Re: Flush
 
Quote:
Originally Posted by dragracerray (Post 714452)
J.T.,
Trans guy wants you to flush the transmission fluid cooler in the radiator or wants you to flush the antifreeze? If you have debris in the transmission fluid cooler side of the radiator some times it is best to install a new radiator. Ray
Radiator cooling lines are just that lines, NO fins.
A plate and fin type cooler should be replaced, tube style can be flushed.
Either one, WAY cheaper than another trans rebuild because of recirculated trash.


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