CD4E valve bodies are notorious for excessively worn valve bores. A worn CD4E valve body that cannot command proper line rise and TCC apply is a problem waiting to happen if bore wear is not properly addressed.
All CD4E remanufactured valve bodies from Sonnax are entirely rebuilt, starting with an oversized pressure regulator valve and oversized bypass clutch control valve kit. All reaming procedures are performed with precision Sonnax tooling to assure a perfect repair every time. Bores are polished, springs and valves are replaced when necessary and new gaskets are installed to complete the process.
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