Question for those of you that have had the 'Test' done --
How long did it take?
Did you have to leave the vehicle overnight, or is it possible to Wait while the test was done?
Transportation issues makes me prefer to sit and wait at the dealership.... will the Dealer allow this, time-wise?
And how did you decide which Dealer, as there are a few GMC, a few Chevrolet dealers to choose from. I sort of question the competency of all of them; so I've got to pick one. Reviews are very mixed for all local dealers (service departments)
Like others, I'm not sure which outcome to hope for; as both have pros / cons to them.