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Posts Tagged: Ford code P1633

Ford code P1633

Keep alive memory P1633 on Ford   If you own a Ford Taurus or Mercury Sable and encounter a Ford code P1633 after repairing your air conditioning, read this first before spending a lot of time on diagnosis. The PCM requires constant power to retain learned settings. What is a learned setting? Well, the vehicle comes from the factory with set programming. As the engine ages, the computer is designed to alter the factory settings to account for worn rings, lower compression, worn spark plugs, etc. The PCM stores the … Read More

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