Sierra946
New member
I have a 99' Limited. Today I started it and got a check engine code. It was the throttle position sensor. Ran fine though all morning. All of a sudden, I went to put it in drive and there was no power and couldn't get rpm up over about 2500. Once it shifts into second gear it doesn't seem to be bogged down. I can't get it to go to wide open throttle. I replaced the TPS and cleared the code. no improvement. Now it's throwing a code 0753 (shifter selonoid A electrical). Anyone else have this issue? Do I need to replace all the sensors?
