Coolant leak 2008 Malibu 3.5l V6 - Page 2 - Chevy Malibu Forum: Chevrolet Malibu Forums
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post #11 of 15 (permalink) Old 12-05-2012, 09:29 AM
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Re: Coolant leak 2008 Malibu 3.5l V6

Nevermind...using https://my.chevrolet.com I setup an account and found that my warranty goes well into 2014. Now to get under the beast and ensure that it is indeed the gasket.
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post #12 of 15 (permalink) Old 12-05-2012, 11:48 AM
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Re: Coolant leak 2008 Malibu 3.5l V6

@soundhertz, please send me a private message with the VIN and I can search the “in service” date.

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post #13 of 15 (permalink) Old 12-06-2012, 07:15 PM Thread Starter
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Re: Coolant leak 2008 Malibu 3.5l V6

Any GM dealer should be able to research your VIN I would think. But it sounds as though you have it figured out anyway. If NRC is giving you the run around go to a different dealer. B
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post #14 of 15 (permalink) Old 03-24-2014, 10:51 PM
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Re: Coolant leak 2008 Malibu 3.5l V6

I own this car now and I also had the gas gauge issue. I've had a few problems with my car over heating. Not sure what it was the first time but it was covered under warranty. Second time it wasn't but they said..no they claim it was a different issue. It was a gasket. Not the head 1 tho. It broke less than a year later. They fixed it for free. This was in the fall. Well. .. its overheating again. Lovely. Crappy car. Oh and the sensors on this crap car keep breaking too. 2 tire sensors. A door sensor..so it always thinks it's ajar. Sometimes it tells me the passenger air bag needs 2 b replaced. But that's only when it's really cold or really hot. Will call them again 2moro. Fun fun
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post #15 of 15 (permalink) Old 12-14-2016, 06:10 AM
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Re: Coolant leak 2008 Malibu 3.5l V6

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Originally Posted by LindenBruce View Post
Hello Everyone,

My name is Bruce and I just joined this forum. I am usually on the older Ford Mustang forums, but since this car has come into the family I need to educate myself on it. My mechanic experience dates back from 1984 to 1989. Since then I have not really needed to delve into a car since they have all been new and only needed basic maintenance. So while I am knowledgeable, my knowledge is dated.

The car belongs to my elderly mother. It's a 2008 Chevy Malibu four door with the 3.5l V6. The car has 74,000+ miles on it and was bought used from a reputable dealer. She has bought from them before and has had good luck with their vehicles. Until now. Yeah, I know. She has already had to have the fuel tank sending unit changed as it would sometimes read an empty tank for about ten seconds before bouncing back. And I still haven't gotten around to replacing the intermediate shaft on the steering either.

Anyway, the engine started running hotter than normal yesterday and the heater wasn't putting out ANY hot air either. Being the family mechanic it was my job to take a look at it for my mom. Popped the hood and the coolant recovery tank was dry. Let it cool off and topped it off with DexCool. Drove it down the road a peace and brought her back. Again the tank was dry. Topped it off again and did another drive cycle. This time she was only half empty when I got back. Water temp was back to being where it normally is and the heater was blowing like a blast furnace.

Got under her today and found a coolant leak at the rear passenger side of the engine. It appeared to be a head gasket, but upon educating myself on this engine I discovered it was most likely the coolant crossover on the front of the engine. I took a pic, but it's a little blurry.

The red circle is a drip of DexCool. The blue circle is the head gasket. And the yellow circle is the bottom edge of the crossover assembly. Can you guys take a look and advise if this is what everyone on the misc. forums are talking about? I'm aware of the TSB on this issue and will be taking the car into the local Chevy dealer tomorrow for them to confirm and repair.

Thanks, Bruce
Thanks for starting this thread. It led me to the source of the antifreeze leak on the 3.5 in my 2008 Malibu classic. I replaced the cross over tube gaskets and it fixed the problem. Not a hard job. Next I need to replace the oil filter adapter housing gasket thats leaking. Wish I would of googled that too while I had it apart.
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