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.
Tech Tip: Extensive testing has concluded that over 90% of solenoid packs from vehicles with 60,000 or more miles do not operate to their full capacity. This can cause a rebuilt transmission to fail prematurely, and may damage your freshly remanufactured valve body. A failing solenoid pack can also produce multiple fault codes. Therefore, we strongly recommend any solenoid pack with over 60,000 miles be replaced. Sonnax valve body FM068 is equipped with a new OE solenoid pack.
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