1995 Chevy suburban C/K 1500 5.7 engine auto tranny 4L60 E

GM Guy!

New member
My truck won't shift to 1st or 2nd unless I manually shift by releasing the gas pedal around 20 mph and again around 40 mph. I have no codes on but am considering changing the "Vehicle Speed Sensor". My speedometer is working so I'm not fully sure if it's the V.S.S. or a wiring issue! Any & all advice is appreciated 👍🏼
 
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