I posted this a few months ago and didn't get a direct answer.
I have a 2007 Buick Rendezvous with the 3.5L V6 (I believe this is the "LX9"), not the 3.4 or 3.6.
This car has the 4T65E trans.
Is this vehicle supported by HP Tuners? It's not in the supported vehicle list, but perhaps that is a mistake as previous year Rendezvous is listed, and I also see the 3.5L listed in other GM vehicles. But I don't want to assume anything.
The only thing I want to do is slightly raise transmission pressures. In small increments, testing between adjustments. (If possible I'd love to only raise pressure when the car is at idle, like sitting at a stop sign, but if I have to increase them across the board that is OK too.)
Can I do this myself with HP Tuners? It seems all I need is VCM Suite with Standard interface for GM correct?
(My skill set: computer engineer by profession, moderate level 'weekend mechanic'.)
Thank you!
Brian