My 1997 chevy nouns slips?

My 1997 Chevy blazer has only had a rebuild tranny and when its cold it runs great for about 15-20 minutes, it shifts close to new 1,2,3,4. smooth as chalice. After it gets heat up the check engine light comes on and I lone have 2nd and 3rd and I enjoy to shift to 2nd manually. now i own been told I call for a transmission control solenoid, I enjoy also been told that I freshly need to flash the computer and reset the codes, I hold also been told it could also be a relay. Ok I'm sure adjectives valid remedies I just call for to know which is the most likely and still allows me to put away!
I posted this question b-4 basically not in detail close to this (sorry guys)
but I need lend a hand. If this helps it is a 2 door 4wd 4.3 ltr W/ac. some body amass me!!!!!!!!!!!!!!...

I involve my coup�� painted?

Answers: Chevy mechanics don't know how to fix it. They just made some s***ty transmissions surrounded by the late 90's and I traded mine contained by on a newer car, so far so moral. You could pour all of your money into it, it will still be a 97 Chevy and it will still slip.

Best crash for your buck, buy a newer car.

Trouble getting my 98 Saturn SL2 5spd...

If you a short time ago recently have it done I would take it hindmost to the shop and tell them what is arranged.

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