2000 Chevrolet Suburban 1500 Q&A

2000 Chevrolet Suburban 1500 Question: Transmission is slippin from 1st to 2nd. What is the best thing to do?

Could it be a cellinoid? Or do I need to replace the whole tran? Is it possible to fix without replacing? Could it be only a seal? -
Answer 1
a couple of questions. 1 do you have a ck eng light on? 2 how many miles on veh.3 have you had trans serviced before -