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i hvae GMC ACADIA 2008. i have used it till reached 1800KM. after that i have found a problem with aceleration. i have take the car almost 6 times to GMC service center. they check the car with elctronic devises and till know they dont admit that there is a problem. we tried the showroom office car which is normal but the do not admit. i asked them to find the problem other wise change the car. the car is still with them in the service center  

Can you tell me more about the issues you're having with you're Acadia? What sounds do you hear? Are there any vibrations?

The more details description the better...

Thanks...  

there is no sound issue as much as accselaration issue. when u drive the car the first minete ok then it becomes heavy. in addition the accslaartion some time goes inside without bushing. i went many times for rood test with the service senter but the decline that there is a problem. while driving shoowroom car is defirent and smooth. we reached 2 the satge that i do not trust the service senter as they do not know how to fined the problem and try 2 avoid telling there mangement about the defrence between my car and the soowroom car.

thanks  

are u aware of  a simmler case like the one i have n my car
how is the rateing for acadia 2008  

Similar concerns we see with our Acadias here is that they ahve a bulletin on reprogramming the tranny for better shifts. some vehicles wouldn't shift accordingly, almost hesitant, which sounds similar to what we get up here.