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Q: Transmission cooler line fitting removal

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Want to know how to get the fitting off of the upper transmission cooler line. I've tried all I can think of and tried advice from autozone/Napa but they don't know what to do either
My car has an automatic transmission.

Typically, the line removal tool is the same as the 3/8 type fuel line disconnect tool. The tool number is T90T-9550-C. This tool should make it easy to get the fitting off.

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