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18. Location. Reading PA. May 5, 2023. #3. It's important to note that there are two different "lifter issues". The one you hear about the most is the defective lifters from the early '21 models. Those affected a lot of trucks, and those are the ones that are pretty much guaranteed to break - generally within the first 20k miles.
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The problem will manifest itself by rough idling, stuttering, lagging acceleration, and spark plug fouling. Mostly, this starts happening after two or more years of use. The good news is that replacing the fuel pressure regulator is easy and cheap, should you decide to replace it yourself.
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According to the company's plans, the update should have given the motors more horsepower, better fuel economy, and increased torque. But, it seemed like the AFM resulted in the oil getting past the pistons, and slowly entering the combustion chambers. It would either get burned or gather in the cylinders.
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Category Car Reliability GM 5.3 Ecotec3 Engine Problems - Is The 5.3 Bulletproof? September 3, 2023 0 By CarGuy Are you interested in purchasing a Chevy with the 5.3 Vortec engine and want to learn more about the GM 5.3 Ecotec3 engine problems?
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Spark plug failure Cracked cylinder head Coolant loss Fuel pressure regulator issues Intake manifold and gasket problems These 6 problems are common in most GM 5.3 liter engines. These problems usually arise when the owner does not perform regular maintenance. Let's discuss these problems elaborately. 1. Excessive Oil Consumption
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The GM lifter problems seem to be most prevalent in the L84 5.3-V-8 and L87 6.2-liter EcoTec3 V-8 engines with build dates between September 2020 and March 2021. These engines are the newer variable displacement design, which uses DFM rather than the older AFM system. The vehicles seem to be failing with less than 10,000 miles on the odometer.
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Discussion starter · #1 · Sep 20, 2023 I have a 2018 Silverado LTZ was only 118200 miles on it. When I bought it, the truck only had around 65,000 miles on but the motor had a slight miss to it. When mileage got to around 118,200 the engine light came on. The next day the same thing happened and then again on the third day.
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The fire was hot enough that the entire engine was significantly burnt, the seats and steering wheel were gone, the glass shattered and melted, and the tires exploded and melted. Thankfully,.
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Fuel supply: RAC says things improving in many areas. 1st October 2021, 11:21 PDT. Getty Images. The RAC motoring group has said the fuel shortage problem continues to ease, although many areas of.
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The intake valve diameter is 1.928 in (49 mm); the exhaust valve diameter - 1.556 in (39.5 mm). By the way, no valve clearance adjustment is required, because the engine comes with hydraulic roller-lifters already. It also comes with variable valve timing (VVT).
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When driving in conditions that do not require full engine power, the engine will shut off four cylinders to save fuel. This allows gen-four 5.3 equipped trucks to surpass 20 mpg highway. Like the gen-three engines, you'll find these 5.3 V8s in just about every GM truck, SUV, and van. The gen-four 5.3 is still produced for use in work vans.
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The 5.3L L84 V8 produces 355 horsepower and 384 pound-feet of torque in the 2021 GMC Sierra 1500. As we pointed out in a previous article, the 2021 GMC Sierra 1500 with the 5.3L L84 V8 is.
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— Aug 1, 2021 Sponsored Links A few days ago, we published a report highlighting the valve lifter issues some General Motors customers were experiencing in certain vehicles equipped with either.
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Sponsored Links. The 2021 Cadillac CT5 luxury sedan is included in a newly issued GM service bulletin because a fix is now available for a software problem in the Engine Control Module that may.
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The problem: affected vehicles may have or may be prone to experiencing a broken valve lifter lock pin spring. This problem only affectes vehicles equipped with the naturally aspirated 5.3L.
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Yet another class action lawsuit has been filed against General Motors over alleged oil consumption issues with the Generation IV 5.3L Vortec V8 engine that was offered in a variety of its.