Which transmission cooler line goes where on a 2001 dodge ram going to transmission?

On a 2001 Dodge Ram, the transmission cooler lines are generally straightforward, but *it's crucial to verify this with a diagram specific to your truck's transmission type (e.g., 46RE, 47RE, 48RE).* Different transmissions may have slightly different routing. Your owner's manual or a reputable online parts source (like a site that provides diagrams based on VIN) is your best bet for absolute certainty.

However, generally speaking:

* The line coming from the radiator (usually the lower line) goes to the *inlet* of the transmission cooler. This is the line carrying cooler transmission fluid *from* the radiator. The fluid is already somewhat cooled at this point.

* The line going from the transmission cooler goes to the *inlet* of the transmission. This line carries the now-cooler fluid *from* the transmission cooler back to the transmission.

Important Considerations:

* Pressure: The line under higher pressure (usually the one coming *from* the transmission) should be more robust. Mismatching lines can lead to leaks.

* Clamps: Ensure the lines are securely clamped to both the cooler and the transmission.

* Leaks: Inspect lines for leaks *before* and *after* reconnection. A small leak can lead to significant transmission damage.

* Fluid Type: Use the correct transmission fluid specified for your truck.

Without knowing your exact transmission type, this is the *general* rule. Do not rely solely on this information. Consult a diagram or a mechanic if you are unsure. Incorrect connection can severely damage your transmission.