Common questions

Can you bypass the transmission oil cooler?

Can you bypass the transmission oil cooler?

Transmission oil coolers can leak into the coolant, too, so be sure that is not the issue. It is possible to bypass the factory cooler in the radiator by blocking off the input/output locations for the transmission cooler on the radiator.

Can a transmission cooler be used to bypass the radiator?

One important thing to consider when installing a transmission cooler is the size of your transmission lines. If the diameter of your transmission lines are 1/2 inch in diameter, then you will want to go with the transmission cooler that you referenced.

Can a trans oil cooler run in a radiator?

It’s an oil cooler and generally all auto cars have one in the radiator. Yes you can run a separate trans oil cooler – it actually extends the life of the tranny esp if you plan on engine power boosts.

Why are transmission coolers always in the cold tank?

The coolant returning from the radiator into the engine has much much lower temperature, it then gets heated to 200F again as it runs through the engine. This is why transmission coolers are always in the cold tank of the radiator, so they never see the real hot coolant being pumped out of the engine.

Is the automatic Trans cooler really that much better?

An automatic trans will build plenty of heat to circulate the fluid when it’s cold outside. Newer cars are somewhat different with all the ‘computer controlled’ transmissions out there these days. The heat from the internal/radiator trans cooler may help those operate better….or they may not.

One important thing to consider when installing a transmission cooler is the size of your transmission lines. If the diameter of your transmission lines are 1/2 inch in diameter, then you will want to go with the transmission cooler that you referenced.

What do you need to know about transmission cooler installation?

The below transmission cooler installation diagram shows the transmission fluid flow direction and how the fluid will be routed through a new external cooler. You will need to determine which line is the return for the transmission.

An automatic trans will build plenty of heat to circulate the fluid when it’s cold outside. Newer cars are somewhat different with all the ‘computer controlled’ transmissions out there these days. The heat from the internal/radiator trans cooler may help those operate better….or they may not.

Where is the best place to mount a trans cooler?

Based on this, the best place to mount a cooler would be in front of the air conditioning condenser. This position will allow the trans cooler to get ample air flow while moving in addition to getting air from the engine’s cooling fans when stopped.

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Ruth Doyle