![]() ![]() 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. 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. Information about GM's 6.0L V8 Vortec engine used in the Chevy Express, Silverado HD, and Suburban, as well as the GMC Savana, Sierra HD, and Yukon XL.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. If your Chevy or GMC pick-up, van, or SUV's engine IS NOT burning oil: Then more than likely you'll be able to go the 100,000 miles the spark plugs are advertised to last.ĭepending on how many miles you put on your vehicle, you may be replacing the spark plugs anywhere between 3 to 6 years.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. This means you could be replacing the spark plugs in a few months or maybe in a year. More than likely, you've got a spark plug that has it's air gap (between the center and side electrode) plugged up with carbon. ![]() If your Chevy or GMC pick-up or SUV's engine is burning oil: You'll need to check the spark plugs when the engine starts to miss (or misfire). So when you should replace the spark plugs? -Here are my recommendations: No, it simply means that the older the engine gets, the more likely the spark plugs are gonna' get plugged up with carbon from oil burning in the cylinders or from additives added to the fuel. This doesn't mean that, because your engine has a lot of wear and tear, the spark plugs are wearing out faster. If like most folks, your Chevy pick up, van or SUV's 4.3L V6, 5.0L V8, or 5.7L V8 engine has over a hundred thousand miles, then you're gonna' have to replace them at a much smaller mileage interval. Yup, the only time they're gonna' last 1000,000 miles was when you're Chevy was brand new and you drove it off the lot with 5 miles on the odometer. Now the bad news is that the 100,000 mile replacement rule only applies if you're driving with a brand new engine in your pickup or SUV. Of course there are exceptions to every rule.Ĭhevy pickup and SUVs covered by this article use platinum spark plugs and these bad boys don't have to be replaced very often.Īs a matter-o'-fact, these platinum tipped spark plugs are usually billed as lasting 100,000 miles- but this may not apply to your vehicle. Spark plugs can go years without having to be replaced. The cool thing is that you don't have to replace your spark plugs very often (like for example: every time you change the oil). Changing the spark plugs is just part of the vehicle ownership experience (whether you do it yourself or you have a shop do it). In a nutshell, the thing that will wear out the spark plug, is the spark that has to jump from its center electrode to its side electrode.īy the time the spark plugs have worked flawlessly for thousands of miles under the extreme temperature they're exposed to inside your engine's cylinders, the spark will wear out even the most durable metals on the planet.Īnd well, this is normal. Can A Spark Plug Cause A Misfire And Misfire Trouble Code?.Which Spark Plugs Should I Buy: AC Delco or Brand X?. ![]()
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