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DexCool in GM Engines

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Dex-Cool • Dex-Cool Class Action Deadline Nears • California Court to Rule on Dex-Cool Settlement • GM Owners Still Steaming Over Dex-Cool • Consumer Complaints

Jeremy of Boise ID (12/31/07)
In Feb. 07 I found out that my 96 Pontiac Grand Prix had a leak in the lower intake manifold gasket and was leaking coolant into the oil. The car had close to 130,000 miles, so I wasn't all that surprised. I performed the work myself and saw that the heads were pitted where the manifold sits. That's when I read about the complaints about Dex-Cool. During the same month, my co-worker with the same car also had the same problem. My aunt has a 2000 Chevy Malibu that also had the same issue.

I recently purchased an 03 Pontiac Bonneville which has 35,000 miles. I smelled antifreeze and started looking around. The lower intake manifold was leaking coolant to the outside of the engine. I was so mad since I had the car for only about 6 months. A car with 35,000 miles should not have to go in for about 1000 worth of repairs to the engine. GM and Dex-Cool states that the coolant is good for up to 100,000 miles. I'm barely 1/3 of the way there. I should have drained the coolant the day I bought it and put the regular green coolant in. My other GM cars have been drained and replaced with regular green antifreeze. I'll never put this stuff in my vehicles again.

Physical damage to the metal parts of the car's engine, and the headache of getting the vehicles fixed.

Jeremy of Boise, ID December 31, 2007

Jeremy of Boise ID (12/31/07)
In Feb. 07 I found out that my 96 Pontiac Grand Prix had a leak in the lower intake manifold gasket and was leaking coolant into the oil. The car had close to 130,000 miles, so I wasn't all that surprised. I performed the work myself and saw that the heads were pitted where the manifold sits. That's when I read about the complaints about Dex-Cool. During the same month, my co-worker with the same car also had the same problem. My aunt has a 2000 Chevy Malibu that also had the same issue. I recently purchased an 03 Pontiac Bonneville which has 35,000 miles. I smelled antifreeze and started looking around. What a surprise....the lower intake manifold was leaking coolant to the outside of the engine. I was so mad since I had the car for only about 6 months. A car with 35,000 miles should not have to go in for about 1000 worth of repairs to the engine. GM and Dex-Cool states that the coolant is good for up to 100,000 miles. I'm barely 1/3 of the way there. I should have drained the coolant the day I bought it and put the regular green coolant in. My other GM cars have been drained and replaced with regular green antifreeze. I never put this stuff in my vehicles again.

Carole of Denton, TX December 28, 2007

Carole of Denton TX (12/28/07)
I have a 2003 Chevy Malibu that has almost 60,000 miles on it. I am having to have the manifold and intake gasket fixed and there is oil leaking into the coolant. My extended warranty company will not cover the Fluid Flush saying they do not know how oil gets into the collant. After reading other complaints I see that this may be a Dexcool issue. Now that I know this- I think back to my Pontiac Grand Am that I sold to my brother. It had to have a new water pump, radiator, and then the heater core failed as well. All could be related to Dexcool.

Michael of Helena, MT December 27, 2007

Michael of Helena MT (12/27/07)
ive owned my 2002 chevy venture for about 4 months now it has roughly 112,000 miles on it, i understand this is a lot of miles, but i've owned 3 other GM vehicles and never had a major problem with them, but anyways, 1 month after purchasing the vehicle the AC condenser blew a hole in it and i had to fork out 2,000 for that, and right now im in the middle of a new blown head gasket that formed the day i got a coolant flush from jiffy lube, i took it back to jiffy lube before i knew about the blown head gasket to see if it might have had a clog since it was overheating and wasn't blowing any warm air. Drove it across the street to a mechanic then they told me it was a blown head gasket, ive been hearing A LOT of these same problems happening and also some stuff about class action lawsuits... im wondering if the dexcool (which is the worst fluid ever designed) isn't deteriorating the headgaskets causing them to blow so easily... any information or remarks would be appreciated

Thomas of Kaukauna, WI December 12, 2007

Thomas of Kaukauna WI (12/12/07)
We experienced a loss of heat in our 1996 Lumina. I noticed a lot of pasty gunk around the radiator cap. I brought car to our mechanic. He informed us of the Dex-Cool issues and said our lines were very corrated and our water pump needed replacing because of the build-up. He cleaned the lines and installed a new water pump with a cost to us of 215.25.

Bob of Jenison, MI December 10, 2007

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