Easy lifehacks

How to tell which transmission fluid line is the return line?

How to tell which transmission fluid line is the return line?

In order to tell which transmission fluid line is the return line leaving the factory cooler of a vehicle like your 2001 Chevy Silverado you want to start with your vehicle cold. Start it up and put it in drive and brake torque it (apply brakes and rev the engine), for about 10 seconds or so, put vehicle back in park, and turn engine off.

Where does the hot fluid go in a transmission line?

The hot fluid cools off in the radiator and then heads back to the transmission. They’re made up of a system of rubber hoses and metal or composite aluminum tubes that allow for transmission fluid to flow through them at high temperatures.

How do you check your automatic transmission fluid?

Your dipstick might have two markings for “full”—one warm, one cold. If the automatic transmission fluid level does not come up to the “warm” line, you’ll need to add automatic transmission fluid. Insert long funnel into automatic transmission fluid dipstick hole.

Where to take transmission line out of radiator?

Locate the transmission cooler line fitting at the back of the radiator and remove it by turning it counterclockwise. Have a rag ready as transmission fluid will seep out. Follow the line back to its insertion point in the transmission.

In order to tell which transmission fluid line is the return line leaving the factory cooler of a vehicle like your 2001 Chevy Silverado you want to start with your vehicle cold. Start it up and put it in drive and brake torque it (apply brakes and rev the engine), for about 10 seconds or so, put vehicle back in park, and turn engine off.

The hot fluid cools off in the radiator and then heads back to the transmission. They’re made up of a system of rubber hoses and metal or composite aluminum tubes that allow for transmission fluid to flow through them at high temperatures.

Your dipstick might have two markings for “full”—one warm, one cold. If the automatic transmission fluid level does not come up to the “warm” line, you’ll need to add automatic transmission fluid. Insert long funnel into automatic transmission fluid dipstick hole.

Locate the transmission cooler line fitting at the back of the radiator and remove it by turning it counterclockwise. Have a rag ready as transmission fluid will seep out. Follow the line back to its insertion point in the transmission.

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Ruth Doyle