Where does a Automatic Transmission Solenoid for a 2006 Pontiac Grand Prix Located?


Asked by Dec 03, 2015 at 12:44 PM about the 2006 Pontiac Grand Prix

Question type: Maintenance & Repair

Just these past couple of days my gears feel like they're slipping. I could
be driving then it feels like it's just reving in place. I was able to get the
rpms up enough to where it would go back into gear and get it diagnosed
at a part store. They said I needed to get a Automatic Transmission
Solenoid replaced. We've got a transmission flush, and it was running great
for a few hours before the check engine light came back on. Got it
diagnosed still saying Automatic Transmission Solenoid, and
recommended that since we needed to drop the transmission oil pan to
replace the solenoid that we replace the filter. Well we replaced the filter
but cant find the where the Automatic Transmission Solenoid goes, we've
looked at diagram's and it doesn't look like it goes under the pan at all. Can
some one show me a proper diagram and tell me where it's located at?

5 Answers


You need professional help here. I owned transmission shops and built everything that came in the door, and I don't think someone with no experience in rebuilding a valve body should ever try to replace a solenoid ---- no matter if they have a map, a flashlight and the desire. SECONDLY: a flush is just about the worst thing to do to a transmission. I've seen some cars not make it out of the driveway after a flush - and any service -flush is NOT what a transmission needs after it has a problem. Transmission servicing, where the filter, the pan gasket and a lot of the fluid gets renewed, is for MAINTENANCE only. It's not to repair a bad unit. And stop driving the car until it's fixed. Driving it now is just raising the final cost to fix it.


My husband is a mechanic but he's never worked on pontiac's transmission before. But thanks for the answer regardless my step dad helped us and hes been a diesel mechanic for 20 + years, we just had to skype and for him to explain/show step by step.


Good that you have all that help. Report back on your success.


Will do.


My car is back up and running and notice a huge difference. My husband had problems pulling out the old solenoid last night as it was broken in two different places. I had to find a small pair of needle nose pliers to pull out a broken piece. My husband put everything back together this morning including new solenoid (obviously), filter, gasket, and new transmission oil and is running smoothly, the check engine light is no longer on. I am very happy with the work he did and the help we recieved.

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