Dex cool coolant issues manual#
Deborah was told the Dex-Cool needed to be flushed and refilled even though the owner's manual stated the coolant ought to be good for 100,000 miles. Nevertheless, the automaker has alerted mechanics that vehicles operated for 15,000 to 20,000 miles with low coolant levels "may be susceptible to the formation of a rust like material in the cooling system."ĭeborah in Hornell, New York faced similar news from her mechanic when she took her 2002 Buick Century in for a maintenance check. GM will not comment on the pending lawsuits but continues to claim that Dex-Cool represents an improvement over traditional coolants. I will see if further damage was caused," he told. So far it's just the gasket that has to be replaced. "I have sludge in my coolant caused by Dex-Cool,' he wrote. Samuel in Bellville, Ohio experienced a similar problem with sludge in the cooling system of his car. The plaintiffs claim that GM refused to repair their vehicles or pay for the repairs and the lawsuit seeks unspecified damages for breach of warranty under the federal Magnuson-Moss Act and the Missouri Merchandising Practices Act. The Missouri suit was filed in April 2003 alleging GM vehicles with Dex-Cool in their cooling systems developed a rusty sludge. The Missouri Supreme Court has declined to hear an appeal from GM challenging class-action certification. On its website, the company now also warns owners to consult their vehicle "owner's manual for the type of coolant right for your vehicle" and never "mix one type of coolant with the other." Lawsuits PendingĪt last count there were 14 lawsuits filed in state and federal courts throughout the country by GM vehicle owners angered over their experience with Dex-Cool.Ī Missouri judge may soon grant class-action status to suits in his state - and that would mean that millions of GM customers could become involved in the lawsuit. GM is quick to clarify its confidence in the antifreeze by stating that the GM owner's manual recommended 150,000-mile service interval is not a warranty guarantee. On its website, GM claims Dex-Cool will last 5 years or 150,000 miles but a steady stream of consumers insist the product is defective and has damaged their vehicles. "I just recently saw about the Dex-Cool problems and that is what I have been using in my vehicle since that is the kind that is required from the automakers," Patricia said.ĭex-Cool is now used in almost 40 million vehicles sold by GM since 1996. The gaskets cost me close to $1,000 and they told me there is no guarantee it won't happen again," she wrote in a complaint to. "I have had 2 intake gaskets replaced on my 1997 Pontiac Grand Am. Patricia in Barberton, Ohio, feels cheated by the automaker.
Ten years after General Motors began using Dex-Cool as an antifreeze in most of its cars and light trucks, GM car and truck owners continue to complain that the coolant corrodes and clogs radiators and radiator caps, erodes water pumps, rots radiator hoses, causes chronic overheating and engine damage while leading to leaky engine gaskets.
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