HDRider

Put me in that camp.

I had the cutout plug in my black tank. Luckily it flowed out without too much trouble.

The 6.2L EcoTec3 V8 (L87 engine) used in the GMC Sierra 1500 (and its GM sister vehicles like the Chevrolet Silverado, Yukon, and Escalade) has been at the center of significant technical scrutiny and major recalls in recent years. 1. Major Safety Recall: Connecting Rod / Crankshaft Defects The Issue: A critical manufacturing defect in connecting rods and main bearings/crankshafts resulted in severe internal engine damage, engine knocking, sudden stalling, or catastrophic engine failure. Affected Vehicles: Broadly covers 2021 through May 2024 model year GM vehicles equipped with the 6.2L L87 V8 (affecting nearly 600,000 trucks and SUVs). The Remedy: Dealerships inspect the engine for metallic debris or rod knock. If damage is present, a full engine replacement is authorized. Non-defective engines receive a specialized inspection, new oil cap/service guidance, and an extended 10-year / 150,000-mile engine powertrain warranty. Federal Investigation: Federal safety regulators (NHTSA) opened and expanded investigations after reports of repeated failures, including on some engines replaced under the initial recall scope. Note: Models built after May 2024 and 2025–2026 production units utilize updated engine components to address this manufacturing defect. 2. Dynamic Fuel Management (DFM) & Valve Lifter Failures The Issue: The L87 engine features GM's Dynamic Fuel Management (DFM) system, which selectively deactivates individual cylinders to save fuel. The special collapsible hydraulic valve lifters associated with DFM are prone to sticking, bending, or collapsing. Symptoms: Loud ticking or knocking noise from the valvetrain ("lifter tick"), engine misfires, rough idle, severe power loss, and Check Engine Light (CEL) illumination. If a lifter bends or fails completely, it can damage the camshaft, necessitating a top-end tear down or full engine replacement. Prevalence: This issue affected many 2019–2023 models, prompting GM to issue technical service bulletins (TSBs) and updated lifter designs. 3. Valve Spring Breakage The Issue: A batch of weak or improperly heat-treated valve springs in earlier L87 production runs caused sudden valve spring fractures. Symptoms: Misfires, metallic clattering, drop in compression, and potential engine destruction if a broken valve drops into the cylinder. 4. High Oil Consumption The Issue: Some owners report elevated oil consumption between routine service intervals. Contributing Factors: DFM cylinder deactivation can draw small amounts of oil past piston rings during low-load operation. Owners are encouraged to check oil dipstick levels regularly, as low oil accelerates main bearing and lifter wear. Summary for 2026 Model Year Buyers If you are considering a 2026 Sierra 1500 Denali, GM implemented revised manufacturing processes and updated internal components to resolve the 2021–2024 crankshaft/connecting rod manufacturing defects. However, as with all high-displacement, pushrod V8s utilizing active fuel management systems, routine oil maintenance and monitoring are essential.

Nothing yet, but I'd like a large cabinet in its place. The microwave is still in place.

Don't get his hopes up. I had pipes in the bathroom that leaked due to installation errors and they still charged me. Not much, but it seems that when the warranty expires it is gone. I had even reported the problem while the warranty was in force, but we were on a long trip and by the time they could work me in it had expired.

I spent a lifetime in full spectrum manufacturing. The "Voice of the Customer" was a big deal to us. It meant everything to us. We would have given anything to have something like this forum to hear what our customers were saying about our products. I promise you our CEO would read it, and I'd bet dollars to donuts it might be a topic at some of the meetings. Listening to your customers and acting on their feedback is the foundation of customer success. That’s why a Voice of the Customer program is critical for delivering value and driving durable growth. https://www.gainsight.com/essential-guide/voice-of-the-customer/

Seems odd. I'd think a person with their name on a bespoke product, built by a company started by the elders, would be very vested in what their loyal and passionate customers say and think.

If you want a real dining experience in southern Missouri eat at https://www.keetercenter.edu/Dine/Dining in Branson. Camp at https://mostateparks.com/park/table-rock-state-park

Me too. Anyone want to buy a Oliver EII convection/microwave? Only used twice. Like new.

The tank gauge is notoriously inaccurate. Did Oliver Service say if this has ever happened before? I bet you have some kind of defect in that tank.

I could see making it easier for buyers of used Olivers working against the buying of a new Oliver.

Assuming a sales pace of 50 units per year at $150,000 per, it will take 1.78 years to recoup a $2,000,000 capital investment with a a 15% net margin. To break even on the investment, you need to sell 89 units in total (88.89 units exactly).

Yep

This forum should be the Go-To spot for buying and selling used Olivers, and even promoting new Olivers. The forum is the learning place for prospective buyers. They should be able to shop here too.