One problem related to loud engine noise has been reported for the 2007 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 GMC Acadia based on all problems reported for the 2007 Acadia.
2007 GMC Acadia. . . It has 62000 miles on it & just in March we had a problem with a metal on metal scraping sound(& you could feel it when you braked) like it needed new brakes but brake pads were like new. And the service airbag light is on, then service traction control message, & service stabilitrack message came on too & it started jerking when you hit the brakes like the abs brakes were kicking in. So we took it to robinson's & they turned the rotars & rotated my tires & when I got it back it rode like a dune buggy. Took it back & said it needed new struts cause "something" stayed in a locked position or another. So then we got it back & the scrubbing noise/feeling came back with the brakes again so then they finally just put new brakes on it & so far so good $1000 later! now, this morning I was in a drive thru & it felt like my car was in neutral when I tryed to go forward & I had to look to see if I moved the gears & then I noticed the orange engine light was on. It barely wanted to go & the rpms just kept getting higher & higher & it was struggling to move so I pulled over & had onstar run diagnostics & codes po700 & po716 power train detected malfunction transmissions & transmission not performing as expected!! I noticed after she ran the test my car sounded like it changed back to normal while running so I cut it off & back on & it drove ok back home but now we have to have it looked at & I'm just sick to my stomach over this! it looks like it's gonna be a broken wave plate & ending up resulting in a new transmission I can not afford!!! I know it's 2007 but with such low mileage & in great condition I wouldn't think it should have all these problems especially with the transmission!! I have read so many reports on the same issues which are beyond ridiculous considering how much you pay for these vehicles!!!! this is totally unsafe & needs a recall ASAP!!!.