Radiator Problems of GMC Acadia

At 500 miles past the warranty expiration the radiator developed a crack along the top seam. The dealership said it was a manufactures defect as the vehicle was less than two years old. GMC declined to replace the part because it was 500 miles past the warranty although they did not deny it was a manufacturing defect. I have a GMC case number documenting my dealings with them. I have photos from the dealership showing the cracked radiator, as well as an email stating it was a defective part. I have the receipt and I have the actual radiator itself. I noticed the radiator leaking on my garage floor when it was stationary. This was 10 days after it was last serviced and there was no issue at that time. The dealership said it was not caused by impact, but just that the seam split at the top of the radiator.

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My 2008 Acadia is now on it's 4th thermostat. I'm about to send it in to have it replaced. My SUV keeps overheating. So far I have replaced the radiator, thermostat, and stability track. Is there any one else who has this problem?.

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I had purchased the vehicle used from what I had thought was a reputable dealer, boy was I wrong. I was on my way home with it from the dealer an hour and a half drive 1 way , going down the interstate at about 65 mph, when the vehicle started to shake something severe , and the rpm,s went wild. I slowed down , but the shake , vibration continued. Finally it did straighten out, and I got home. A couple days later on my way to work the engine light came on, and than the service all wheel drive system light came on. The next day my dad who is a mechanic, drove it and it shook and vibrated so bad , he thought the wheels were falling off. Came back and put it in the workshop and checked the wheels for tightness, they were ok. Noticed a rather large coolant leak above the water pump ,, seemed to be coming from under intake area. Called the dealer and said we were bringing it back on a trailer. On 1 / 1 / 15 at about 9:45 am dropped off at the dealer, told them again what the problems were and left it there. On 1 / 5 / 15 the dealer called us and indicated there was a upper radiator hose that the clamp was loose. I told them it was not and my dad knows where it was from. They also stated that they drove it and could not find any problems with it. After telling me that they said that they are a Ford dealer and do not have the tools to diagnose the vehicle. Right after that the general manager says that he did notice a problem with shifting , but its nothing to worry about. I said than you put your family in the vehicle and take them for a drive , because I will not put myself with my 3, and 5 year old kids in it. He said he will look at it again tomorrow. I will never buy another gm product ever again.

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My 2009 GMC Acadia was purchased in Aug 2009. Aside from routine maintenance, I have already had to replace the water pump, the radiator, & the timing belt (none of which were covered under my warranty) but on September 9, 2013 , my transmission let go. The dealership kept my vehicle for 20 days. Claim they couldn't rebuild it and had to get a new one. (which I have since been told that was a lie, that they have to use factory rebuilt transmissions). Got my vehicle back on sept. 28. On March 22, 2014, I brought it back to dealership because it was showing signs of slipping transmission again. Dealer told me it was fine sent me home. Less than 2 weeks later on April 8, the transmission let go again. No reverse & truck would not move in drive just rev the engine. Back to dealership for "another transmission" this time they had my vehicle for 18 days. I just picked it up 2 days ago. This morning while driving my kids to school, transmission went again! this is unsafe! I am scared to death to drive my kids around in this vehicle! I almost got into an accident this morning because of it! 3 transmissions in 6 months?! this is a red flag don't you think. . How much longer will GMC not value my life or my families?? something needs to be done about this!.