My 2000 Bonnie SE (87k miles, well maintained) started giving me the dreaded PCS issue. It'* shifting hard under light acceleration and begins shuddering at low speed after about 20-30 minutes of highway driving. This just became noticable the past two or three days.
I'm preparing to order the PCS solenoid (p/n 10478143, $32.26 from GM Parts Direct) and the necessary gaskets (p/n 24205119, $4.56) but I'm not finding any information on changing this solenoid or any walkthroughs. It looks like the recommendation is simply to take the car to the dealer.
I'm somewhat confident I can change this module but wanted to check to see if it'* a much bigger PITA then just paying $500. If I do this, I also want to know if I should document it for a future walkthrough.
Right now, the other option is going to be to put in Seafoam and trade it in - I haven't had the LIM gasket issue and don't want to / won't pay for both jobs. I like the car and don't feel like getting a new loan, but I don't want to keep throwing money at a lost cause.