1997 c1500 suburban takes off slow and is hard to slow down after getting up to speed.

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Joined
Nov 26, 2022
Messages
5
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Location
Michigan
When taking off from a stop i feels like i have about 60 hp and it takes me about 30 seconds to get to 50. When I try to brake it feels like the torque converter stays engaged and i have to ride my brakes hard to stop and i ended up glazing them and now my brand new brakes squeal, I also get harsh shifts after driving for about 20 minutes and assumed that its related with my other issues, The transmission is new (less than 1500 miles). Took the pan off and replaced the tcc solnoid but it only fixed it for about a day and then the issue came back. Iam currently getting 5.5 mph, i have one code for the transmission but none for the engine.
 
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