Shift Solenoid
New Member
Joined: 01-20-2018
Posts: 29
From: NE
Hello all, I am finally joining the site after reading it for some time now. This is an epic thread and certainly deserved becoming a sticky. I have just completed this on my 2011. Much like the last guy (his issue, not attitude 
) I have a transmission that wants to go forward in all shift positions. It shifted fine before repair. I had the P0700 and P0842 combo plate. I decided to replace the pressure switch manifold, pressure control solenoid, and both shift solenoids. I also replaced the trans pan and filter. My question is; does anyone think I may have reversed the plugs between the two solenoids? I have checked all of my external connections and fluid level. Any input would be greatly appreciated.
) I have a transmission that wants to go forward in all shift positions. It shifted fine before repair. I had the P0700 and P0842 combo plate. I decided to replace the pressure switch manifold, pressure control solenoid, and both shift solenoids. I also replaced the trans pan and filter. My question is; does anyone think I may have reversed the plugs between the two solenoids? I have checked all of my external connections and fluid level. Any input would be greatly appreciated.
Moderator
Joined: 05-01-2014
Posts: 8,511
From: California
I know this is after the fact for you but the best thing to do in these situations is take lots of pictures which relly easy with a cell phone nowdays cause then you see exactly what you may have done wrong it helped me alot with my repair if you dont know already the shifting solenoids are just for that only so i doubt that would make the car want to travel so its some other area not the shifting solenoids they are identilcel unfortunatly thats all i replaced in mine so look at the others maybe thats the problem sorry cant be more help for ya
Senior Member
Joined: 11-16-2018
Posts: 182
From: Toledo
quick question about this process. Are you dropping/tilting the engine/trans a few inches and then dropping/tilting the engine cradle a few more? Thanks, getting ready to tackle mine in a few.
Any chance you have a complete list of parts used? thanks
Any chance you have a complete list of parts used? thanks
Joined: 05-06-2014
Posts: 4
From: N GA Mountains
Sorry to resurrect an old thread but trying to keep the pertinent info together. I am in the midst of doing solenoids on one of my HHRs. After going through my factory service manual and reading this thread repeatedly, I have a question. Since I plan on following the OP lead, I'll drop the drivers side of the engine down enough to access top bolts and the cradle a few more inches to access the bottom bolts. Looking at the shift cable and such, I can't figure out why it needs to be disconnected. There is plenty of slack for it to move. Can't I just unplug the PNP?
Senior Member
Joined: 11-16-2018
Posts: 182
From: Toledo
Sorry to resurrect an old thread but trying to keep the pertinent info together. I am in the midst of doing solenoids on one of my HHRs. After going through my factory service manual and reading this thread repeatedly, I have a question. Since I plan on following the OP lead, I'll drop the drivers side of the engine down enough to access top bolts and the cradle a few more inches to access the bottom bolts. Looking at the shift cable and such, I can't figure out why it needs to be disconnected. There is plenty of slack for it to move. Can't I just unplug the PNP?
Senior Member
Joined: 03-25-2017
Posts: 240
From: Ventura, CA
Steve,
I replaced my shift solenoids today and just wanted to say thank you for your posts in this thread. They were extremely helpful and saved me at least a few hundred dollars while doing it myself instead of paying a shop to do it.
I replaced my shift solenoids today and just wanted to say thank you for your posts in this thread. They were extremely helpful and saved me at least a few hundred dollars while doing it myself instead of paying a shop to do it.
