Transmission repair manuals 4T45E 4T40E

Information about rebuild transmission 4T45E 4T40E

In fact, this modification of transmissions was set up in several dozens of cars and recommended itself with the best hand.

Compact size of this gearbox suits its simple construction. Automatic gearbox 4T45E 4T40E didn’t have the ability of manual gear change, but it had sport mode, that let to untwist the engine better. Valve body was responsible for lubrication and cooling of motor. Special work algorithm of valve body let to open solenoid packages and that provided effective lubrication and cooling of moving parts in the gearbox. This transmission represents a classic automatic gearbox by US manufacturers. Super modern technologies aren’t used in it, but at the same time transmission provides effective power engine and there’s no need in manual gear switching. Reliability combined with simple maintenance. Due to its simple construction these modifications of gearboxes are very easy to repair.

4t45e transmission problems and rebuild

As for breakings of Automatic Transmission 4T40E / 4T45E, there are some problems with torque converter, it can be broken because of using old oil. To avoid such things, you must change transmission oil every 50.000 kilometers. Otherwise you must repair 4T40E / 4T45E.

4T45E Solenoid Replacement


4T45E fluid type and capacity


Bottom pan removed 7 liters (7.4 quarts)

New converter 2.5 liters (2.6 quarts)

Complete rebuild 10 liters (10.6 quarts)


Use any Dexron III fluid

4t45e oil level

How to check oil level — video

Transmission parts scheme

4T40E scheme transmission

4T40E/4T45 manuals

manual 4t40e/4t45 manual 4t40e/4t45

4t45e solenoid replace

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Parts for Rebuild 4T40E/4T45E Transmission

Solenoids and Valve Body

Rebuild Kits

Torque Converter

Drive Chains

Drums and Bands

Rebuilt Transmission


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