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Broken trans cooling line(rust out) - Cherokee Jeep Cars & Trucks

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You've got two options: Either cut back the line to a point where the line is still good and either replace the rotted section with steel line using compression unions, or use rubber hose in the same manner only when you put mini clamps on the ends, make sure to use two at each end with the screw parts 180 degrees from each other and about a half inch apart. Make sure if using hose that you push the hose at least four inches up onto the existing line. It's best to use clamps used for fuel injection hoses as they don't destroy the hose.
When running the new line, it does not need to exactly follow the routing of the old one but needs to be secured so it doesn't vibrate and does not run too close to exhaust pipes or any moving components (steering etc) that can wear a hole in it or cause the fluid in the line to get hot..

Posted on Apr 03, 2011

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