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97 f 150 hard bump in 1st gear

Old 08-14-2016, 09:14 PM
Thread Starter
Join Date: Aug 2016
Posts: 4
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.
Old 08-15-2016, 09:20 AM
GMCSierraFan's Avatar
Join Date: Feb 2009
Location: Midwest
Posts: 1,559

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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