97 f 150 hard bump in 1st gear - Truck Forums


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Old 08-14-2016, 09:14 PM
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Default 97 f 150 hard bump in 1st gear

When taking off from a stop it seems the trans either shifts hard from 1st to 2nd gear, much like getting a small bump from behind. All other gears are smooth. This is a 97 f150 v8 auto.

Not sure if its like the gear is slipping and then grabs and kicks in, but feels like it.
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Old 08-15-2016, 09:20 AM
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My grandfather (40yr GM tech) was always convinced that a hard shift was good for the vehicle and it meant nothing was worn...

That being said, it's annoying. My 98 had a very clunky tranny when I got it, so I had the Trans fluid changed. Be sure to have them drop the pan and clean off the magnet that catches chunks. Within about 500 miles it shifted beautifully after that.
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