Jump to content

Search the Community

Showing results for tags 'l87'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • GM-Trucks.com Original News & Product Reviews
    • General Motors Product and Industry News
    • The GM-Trucks.com Garage - Vehicle Testing & Product Reviews
    • The Newsroom Archive
    • The Garage Archive
  • Next-Generation 2026 Chevrolet Silverado & GMC Sierra Speculation & Rumors
    • 2026 Chevrolet Silverado & GMC Sierra
  • 2022-2026 Ultium Electric Vehicle Forums
    • 2022-2025 GMC HUMMER EV Pickup & SUV Forum
    • 2024-2025 Chevy Silverado EV & GMC Sierra EV Forum
  • 2019-2025 Chevy Silverado & GMC Sierra Forums - T1XX Platform
    • 2019-2025 Silverado & Sierra
    • 2020-2024 Silverado HD & Sierra HD
    • 2021-2025 Tahoe, Suburban, Yukon, Yukon XL & Escalade
  • 2014-2019 Chevy Silverado & GMC Sierra Forums - K2XX Platform
    • 2014 - 2019 Silverado & Sierra
    • 2015-2020 Suburban/Tahoe & Yukon/Yukon Denali
    • 2015-2019 Silverado HD & Sierra HD
  • 1999-2013 Chevy Silverado & GMC Sierra Forums - GMT-800 & GMT-900 Platforms
    • 1999-2013 Silverado & Sierra 1500
    • 2000-2014 Silverado & Sierra HD
  • Chevy Colorado & GMC Canyon Forums
    • 2023-2024 Chevy Colorado & GMC Canyon Forum
    • 2015-2022 Colorado & Canyon
    • 2005-2012 Chevy Colorado & GMC Canyon
  • Chevrolet / GMC / Buick / Cadillac Crossover & SUV Forums
    • 2024 Chevrolet Traverse, GMC Acadia & 2025 Buick Enclave
    • 2017-2023 Traverse, Acadia, Enclave & XT5
    • 2025 Chevrolet Equinox & GMC Terrain Forum
    • 2019 - 2024 Blazer
  • Classic Chevrolet & GMC Pickup Truck Forums
    • 1988-1999 Chevrolet & GMC C/K GMT400 Platform
    • 1973-1987 Chevrolet & GMC Square Body / Rounded Line Pickups
    • 1967-1972 Chevrolet & GMC Glamour / Action Line Pickups
    • 1960-1966 Chevrolet C/K/Apache & GMC 1000-3000 Pickups
    • 1982-2005 Chevrolet S-10/Blazer & GMC S15/Sonoma/Jimmy
    • 1969-1994 Chevrolet K5 Blazer & GMC Fullsize Jimmy
  • Silverado, Sierra, Trucks, Parts & Accessories For Sale
    • For Sale/Wanted
    • Member & Vendor Rating Forum
    • Member Product Reviews
  • The Lounge
    • Off-Topic
    • Future Vehicle Speculation & Spy Shots
    • Automotive Industry & Market Discussion
    • New Member Introductions
    • Meetups, Events, & Gatherings
    • GM-Trucks.com Comment Box
  • Hobbies & Lifestyle
    • Photography
    • Major League Sports, Outdoor Recreation, Firearms, Hunting, OHRV
    • Racing, Strip, & Track
    • Trailers, Hitches, & Towing
    • Garage & Home, Snow Plowing, Landscaping, & Lawn Care
    • Technology, Devices, & Gaming
    • Vehicle Buying, Financing, Incentives, & GM Card
    • Vehicle Builds
  • Technical & Advanced
    • Vehicle Appearance, Care, & Maintenance
    • Ask the GM Technician
    • Performance Engine Tuning
    • Transmission, Suspension, Transfer Case, & Axles
    • Wheels, Tires, & TPMS
    • Audio, Electronics, OnStar, MyLink, Intellilink & SiriusXM
    • How-To
  • Commercial Vehicles
    • 1980-2009 Chevrolet Kodiak and GMC Topkick
    • Chevrolet Express & GMC Savana
    • Chevrolet Silverado Chassis Cab 4500HD/5500HD/6500HD
  • Black Truck Club's Topics
  • Texas Owner's Group's Topics
  • California Owner's Group's Topics
  • New England Owner's Group's Topics
  • Midwest Owner's Group's Topics
  • South Carolina Silverado Owners's Topics
  • Canadian Owners Club's Topics
  • SCUBA divers of GM-Trucks's Scuba Talk
  • Red Truck Club's Topics
  • Idaho Sierra & Silverado Owners Club's Idaho
  • Colorado Trucks's Exhaust Setups
  • Colorado Trucks's Pics of trucks
  • SEO Paint's seo color ordered
  • NorthSky Blue Club's NorthSky Blue Metallic
  • NorthSky Blue Club's Pics
  • diesel 3.0's Topics
  • MIAMI TRUCK LOVERS's YOUR FAVORITE CHERVROLET MOD?

Calendars

  • Events
  • Birthdays
  • Texas Owner's Group's Events
  • California Owner's Group's Events
  • Midwest Owner's Group's Events
  • Red Truck Club's Events

Categories

  • Articles
  • News
  • Reviews
    • Project Sierra
  • Resources

Categories

  • RPO

Product Groups

  • Premium Memberships

Blogs

There are no results to display.

There are no results to display.


Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


MSN


Website URL


Yahoo


Skype


Facebook


Twitter


Name


Location


Interests


Drives

Found 2 results

  1. Hello everyone. Came here with 2022 tahoe GM 6.2 L87 engine problem. 4th cylinder randomly misfires without MIL. When it came to us two months ago it was randomly misfiring by all of the cyilinders, but 1,4,7 were the most. MIL was shown up. Since then we found melted catalytic converter on the left side (1,3,5,7) and changed it. Checked cylinder compression - it is approx. 220 psi (15.5 bar) in every. Changed all of the injectors. Changed all of the spark plugs, wires and coils. All of the spark plugs were completely worn. Now it has only one problem cylinder. It could work without misfire for 1-3 hours staying at idle or start to misfire when accelerator slowly and gently pushed towards to reach approx. 1.5-2k rpm doing 6-25 misfires per logging cycle. No tickling noise. Opened both rocker covers to look at the lifters. They are not stuck when engine is idling. When pushing accelerator fast and completely, or just sharply and briefly push - there are no misfires at all and it stops misfiring if there are some. Total mileage is 25000 miles. 13000 miles ago it had stuck lifter on the right head (2nd cylinder, intake valve). Since then, all of the lifters on the right head have been replaced. Oil pressure is 40 psi at cold engine and 30 psi at hot. Fuel corrections are: -0,5% long bank 1 -1% - -4% - -7% long bank 2 (high percentage when misfires obviously from enriching the mixture with unburned fuel) Short-term correction jumps from 1% in plus to 5-7% in minus, depending on misfires in right bank. Coolant level is constant i guess. Camshaft without any scratches or damages. Could new injector be broken by the chance? Will try to change 4th injector on monday and swap 4th and 3rd AFM system solenoid but it hardly would work. I'll be glad to hear your opinions.
  2. Zane Merva Executive Editor, GM-Trucks.com 5/18/2018 As it turns out, the leaked figures for the 2019 5.3L and 6.2L V8 engines wasn't far off. That's the good news. The bad news is the SAE certified horsepower and torque will match 2018's numbers exactly. But that doesn't mean the 2018 and 2019 engines are the same. Instead of the 2018's Active Fuel Management, which allows the engine to switch between four and eight cylinders, the 2019 V8's have Dynamic Fuel Management. DFM can adjust the firing cylinders in up to 17 different ways. Theoretically, that should mean improved fuel economy at the same power output. Chevrolet hasn't released any fuel economy numbers yet, so that is just a theory. But if you really like the 2018 5.3L V8 and want to buy it again with the 2019 Silverado, fear not. You can option it with a six-speed transmission for WT, LT, and LT Trail Boss trims. -------------------- 2019 CHEVROLET SILVERADO 5.3L WITH DYNAMIC FUEL MANAGEMENT SPECIFICATIONS Type: 5.3L V-8 VVT DI with Dynamic Fuel Management Bore & Stroke (in / mm): 3.78 x 3.62 / 96 x 92 Block Material: Cast aluminum Cylinder Head Material: Cast aluminum Compression Ratio: 11.0:1 Firing Order: 1-8-7-2-6-5-4-3 Valvetrain: Overhead valve, two valves per cylinder, variable valve timing Fuel Delivery: Direct high-pressure fuel injection with Dynamic Fuel Management Ignition System: High-energy coil-on-plug Horsepower (hp / kW @ rpm): 355 / 265 @ 5600 rpm (SAE certified) Torque (lb.-ft. / Nm @ rpm): 383 / 519 @ 4100 rpm (SAE certified) Manufacturing Location Tonawanda Engine Plant, Buffalo, N.Y. 2019 CHEVROLET SILVERADO 6.2L WITH DYNAMIC FUEL MANAGEMENT SPECIFICATIONS Type: 6.2L V-8 VVT DI with Dynamic Fuel Management Bore & Stroke (in / mm): 4.06 x 3.62 / 103.25 x 92 Block Material: Cast aluminum Cylinder Head Material: Cast aluminum Compression Ratio: 11.5:1 Firing Order: 1-8-7-2-6-5-4-3 Valvetrain: Overhead valve, two valves per cylinder, variable valve timing Fuel Delivery: Direct high-pressure fuel injection with Dynamic Fuel Management Ignition System: High-energy coil-on-plug Horsepower (hp / kW @ rpm): 420 / 313 @ 5600 rpm (SAE certified) Torque (lb.-ft. / Nm @ rpm): 460 / 621 @ 4100 rpm (SAE certified) Manufacturing Location Tonawanda, N.Y.
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.