Jump to content

Search the Community

Showing results for tags '8.1'.

  • 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

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 1 result

  1. I will be searching the forums here shortly, but I am semi-stranded on a 1,750 mile road trip with 5 kids under 10, over 500 miles from both my origin and destination. I have a 2001 Suburban I bought with 260,000 miles on it. I'm now pushing 270,000 I made it to a hotel nearby a Chevrolet Dealer, but they don't open for service until Monday. I was cruising at freeway speeds and suddenly the truck engine died and began coasting to a stop. I put the truck in neutral, restarted it, and it fired up and popped back into drive. About 150-200 miles it started happening more frequently. When the engine loses power, the tachometer shows the engine speed dying out, so it is not a total loss of signal from whatever provides the signal to the tachometer. After dying out, the engine will fire back up and idle with minimal extra cranking. The engine starts up and idles well at these times, and I have had to idle it with the family in it and it runs the AC no problem at idle. I have not had the condition pop up at idle. Sometimes, the engine will recover itself and resume accellerating as we are coasting if I feather the pedal. I have an AutoEnginuity scanner and a decent array of tools that I travel with. MIL is not on. I have some history codes for: P0461: Fuel Level Sensor Circuit Range/Performance (I believe this code was never cleared from before I replaced the sending unit previously) P1172: Fuel Transfer pump Flow Insufficient - This one kind of makes me wonder. On the trip, due to having the kids in the car, I have refueled at various levels with the engine running for A/C. Alldata says this code will not set if P0461 is present. P1431: Fuel Level Sensor 2 Circuit performance. The only way I could see the secondary fuel pump effecting drivability, aside form usable fuel, is if the secondary pump failure has caused it to become an excessive current draw. When I bought the truck, the fuel gage was not working, which I traced back to the primary sending unit in the tank. At around 265K miles. I replaced the fuel pump and sending unit assembly at this time with a new AC Delco OEM replacement part. Since that replacement, I have made the same 3,500 round trip road trip without issue about 1 month ago. One difference this time is that the ambient temperature this time is considerably warmer outside, however the coolant and trans temp gages have been riding right at where they normally do. Prior to that last trip as well, I put AC Delco Irridium spark plugs gapped at .045", and a 180F thermostat in the truck. The only other issue that I had was that at one point the EGR became stuck open by a small piece of stray carbon that would cause the truck to not idle. When the stalling symptoms first surfaced on this trip, I put a new AC Delco fuel filter in the truck and replaced the primary fuel pump relay just to rule them out, I would find it odd that a fuel pump would fail at that juncture at 5K miles old, however I am planning to get down to AutoZone and purchase a fuel pressure gage just to check that out during the moments when the problems are being experienced. The old fuel filter didn't seem restricted with a blow-through test. I do know this truck has both a camshaft and crankshaft position sensor, and I have seen a lot of similar symptoms that relate to the failure of one or both of these. I think that's where I'm looking next if the fuel pressure checks out. Am I correct in assuming that the engine would throw a DTC if an ignition coil or coil group was intermittently failing? Any help greatly appreciated! Thanks! Steve 2001 Suburban 2500 8.1L 4x4, 270K Miles
×
×
  • Create New...

Important Information

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