Check Engine light came on. Code P0742. Is it hard to replace? Its on side of transmission correct?

 

it is easy if your good with working on cars but takes a lot of work to change. this solenoid is under the transmission side cover so you have to tare into the trans a little to get to it. here is a good write up on how to do it.

GM 4T65E solenoid shift valve replacement TCC/PWM EPC 1-2 2-3

 

The actual replacement is easy. Getting to it is another story. You either have to drop/lower the cradle to get the trans cover off, or pull the engine/trans to get access to it.

 

Are these the correct solenoids? And while its apart should i install transmission shift kit?

4T65E Transmission Solenoid Kit GM Volvo Shift TCC EPC New 2003 on 99150 | eBay

GM Chevy 4T65E 4T65 E Transmission Shift Kit 1997 Up | eBay

 

I recommend calling Dave Norris at triple edge performance for all this stuff.

The shift kit goes in the bottom of the trans under the trans pan not under the side cover where the solenoid is located.

 

I got all 4 solenoids from autozone and have had no issues.