![]() ![]() Havoline had the original patent on Dex-Cool and manufactures it for GM. I also have contacted GM and DC service departments to verify this information and they certify it is 100% accurate as of their October 2002 technical publications.ĭex-Cool (ethylene glycol) is identical to the Chrysler & General Motors factory fill. I have tested the below information thoroughly to be accurate on my own GM and Daimler-Chrysler vehicles. The following information has been gathered by myself through contacts in the automotive industry and my personal mechanical experience. keep reading article "Lawsuit Claims There Are Multiple Reasons for Excessive Oil Consumption Problems in GM's V8 Vortec 5300 Engine" Posted on DecemSource carcomplaints.Back to "Maintenance" All about Dex-Cool® Eventually GM just updated the Generation IV Vortec 5300 engine and replaced it with a redesigned Generation V Vortec 5300 that stopped using low-tension oil rings and reintriduced an oil level sensor. The lawsuit mentions GM has tried to improve the situation by updating the vehicle's crankcase ventilation and active fuel management system, but it never really helped. Sure, there's only a pint of oil left in the engine but don't worry. Instead of measuring the volume of oil left in the crankcase, the system measures environmetal variables to determine the quality of the oil. That's a recipe for disaster, but the cherry on top is the somewhat useless oil monitoring system. Even more oil is being burned off after being sucked into the intake by the engine's positive crankcase ventilation ( PCV).The rings, which are already leaking, are then overloaded by a spray of pressurized oil from the Active Fuel Management ( AFM) system. ![]() GM used low-tension piston rings that allow oil to leak out of the crankcase and into the combustion chamber.A lawsuit filed in Minnesota says the problem is multi-faceted. There's something funky going on inside GM's 5.3L Vortec 5300 engine causing it to use a higher-than-normal amount of oil. Most experts agree that the problem stems from GM's 'DexCool' coolant which erodes away at the… Continue reading article "Cracked Intake Manifold" Leaking coolant from a cracked intake manifold gasket is an extremely common problem on most GM vehicles made from the late 90s to the mid-2000s. Continue reading article "Cruze Coolant Leaks" Continue reading article "Passlock Security"Īfter years of Chevy Cruze owners complaining about antifreeze leaks along with an overwhelming smell in the cars, a class-action lawsuit was filed against General Motors in New York federal court. One of Chevrolet’s solutions for stopping thieves from driving away with a car is, coincidently, doing the same thing to the actual owner. Continue reading article "Ignition Switch Safety Recall" To make matters worse, the company may have known about the defect for over a decade. In February, 2014, General Motors recalled 1.6 million vehicles because of a faulty ignition switch that has been linked to the deaths of 13 people. Unfortunate… Continue reading article "Delayed Acceleration Problems" The throttle lag can be frustrating at best, but can also leave drivers in dangerous situations. Many Chevrolet generations suffer from delayed acceleration due to a slow response in the drive-by-wire electronic throttle system. And a less-than-impressive oil monitoring system doesn't do anything to warn owners about dangerously low oil levels until it'… Continue reading article "2.4L Ecotec Oil Consumption" The problem was compounded by an inadequate oi… Continue reading article "5.3L Vortec 5300 Engine Oil Consumption"ĭefects with Chevy's accelerator pedal sensor and electronic throttle control system are triggering a sudden and dangerous 'Engine Power is Reduced' warning message which can lead to the car suddenly losing power and having limited accelera… Continue reading article "Engine Power is Reduced"Ī series of unfortunate design decisions allow oil to end up in the combustion chamber of the 2.4L Ecotec engine. 5.3L Vortec 5300 Engine Oil Consumptionįrom 2010-2014 GM's Vortec 5300 engine had multiple design flaws that led to an excessive oil consumption responsible for soiled spark plugs, bent pushrods, and timing chain wear to name a few. ![]()
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