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The 48RE also includes a “Tow-Haul” button on the shift lever. This feature locks out overdrive and locks the torque converter clutch. If you engage Tow-Haul at speeds above 50 mph, the transmission will shift or stay in third gear and the converter will lock. If you shift the transmission manually to second gear when you slow down to below 50 mph, the transmission will shift down to second gear with locked torque converter.
 

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Hoot


Could you explain what does the locked converter do?
 

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The locked converter allows a you to downshift manually and use the engine compression to slow you down.
 

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hoot said:
The 48RE also includes a “Tow-Haul” button on the shift lever. This feature locks out overdrive and locks the torque converter clutch. If you engage Tow-Haul at speeds above 50 mph, the transmission will shift or stay in third gear and the converter will lock. If you shift the transmission manually to second gear when you slow down to below 50 mph, the transmission will shift down to second gear with locked torque converter.




Edited by: Diesel Power
 
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