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NHTSA ID Number: 10115093
Manufacturer Communication Number: PIP5339
Summary
This Preliminary Information communication provides information to the technician about a customer?s request to remove or disable the Bi-Fuel Compressed Natural Gas system. General Motors
does not condone the removal of the original equipped Compressed Natural Gas systems.
Condition/Concern
A dealer may receive a customer request to remove or disable the Bi-Fuel CNG (Compressed Natural Gas) system.
Recommendation/Instructions
General Motors does not condone the removal of the original equipped CNG systems.
The New Vehicle Limited Warranty does not cover damage caused as the result of any of the following:
Damage Due to Accidents, Misuse, or Alterations: Alteration, modification or tampering to the vehicle including, but not limited to the body, chassis, powertrain, driveline, or components – after final assembly by GM. Service Agents modifying new vehicles and installing equipment, parts, and accessories obtained from sources not authorized by GM are responsible for complying with the regulations set forth by the National Highway Traffic Safety Administration and the US Federal Motor Vehicle Safety Standards.
GMTAC (GM Technical Assistance) will not have or supply information on how to remove or disable a CNG system.
GMTAC does not have specifications or information on how the vehicle will perform when the CNG fuel system is removed.
GM Technical Assistance will continue to supply information on how to diagnose and repair a properly installed original equipment system.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
85 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | CAVALIER | 1998-2004 |
| CHEVROLET | EXPRESS | 1998-2005 |
| CHEVROLET | G SERIES | 2000 |
| CHEVROLET | IMPALA | 2015-2016 |
| CHEVROLET | P | 1998-1999 |
| CHEVROLET | SILVERADO 1500 | 2006-2007, 2009-2011, 2014 |
| CHEVROLET | SILVERADO 1500 HD | 2002-2005 |
| CHEVROLET | SILVERADO 2500 | 2006-2007, 2009-2016 |
| CHEVROLET | SILVERADO 2500 HD | 2001-2004 |
| CHEVROLET | SILVERADO 3500 | 2013 |
| CHEVROLET | SILVERADO 3500 HD | 2001 |
| GMC | G SERIES | 2003 |
| GMC | G VAN BUS | 2000, 2004-2006 |
| GMC | GM | 2001-2002 |
| GMC | P | 1998-1999 |
| GMC | SAVANA | 1998-2005 |
| GMC | SIERRA 1500 | 2014 |
| GMC | SIERRA 2500 | 2007-2016 |
| GMC | SIERRA 2500 HD | 2004-2005 |
| GMC | SIERRA DENALI | 2007-2013, 2015-2016 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5339
Date: Nov-2015
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- FORKLIFT READY: This tank features a LIQUID DRAW design for use in forklift applications; it can be mounted horizontally or vertically and comes with a built-in gauge so you never run out of propane!
- RUGGED-DESIGNED to withstand the rigors of warehouse transportation and constructed from high-grade welded steel and powder coated for long-lasting durability; arrives in a shiny and smooth finish, making it rust-free and corrosion-resistant
- EMPTY TANK: This propane tank is EMPTY and comes pre-purged and ready to be filled with gas
- SAFETY FIRST - Flame King tanks are pre-purged, vacuum-ready for filling with Propane/LP gas; they are x-ray and hydrostatic tested and Department of Transportation (DOT) and Transport Canada (TC) certified
- LEADING THE INDUSTRY - Flame King, a leader in propane storage solutions, prides itself in making the highest quality, premium, refillable propane tanks in the market; from 0.25LB up to 420LB tanks, we've got you covered!
- Propane Forklift Kit, Joseph (Author)
- English (Publication Language)
- 366 Pages - 04/17/2022 (Publication Date) - Independently published (Publisher)
- Allows removal of an empty cylinder for refill without interrupting the propane supply
- For RVs with dual propane tanks; automatically switches from primary to reserve tank when the primary is empty
- UL LISTED: Inlets are 1/4" SAE inverted flare and the outlet is 3/8" NPT female pipe thread; rated for 345,200 BTU
- Double-stage design maintains constant gas pressure under changing demand and conditions; regulator is factory set at 11WC (water column)
- Compatible with Flame King's 48-inch Thermo Plastic Hose, item 100383-48, and 12-18 inch Pigtails - E12INPT, E15INPT or E18INPT
- Designed to make your life easier - no more manually switching propane tanks! This regulator automatically switches to the full tank when one becomes empty, indicated by a red indicator window. And with pigtails included and a light weight of only 2.5 pounds, it's convenient to use and transport.
- Versatile and reliable - Perfect for any outdoor setting, from camping trips to backyard BBQs. The QCC1 hoses feature a flow limiter and check valve for added safety. Plus, its compact design (2 ¾"W x 6 ¼"H x 6 ¼"D) won't take up too much space in your storage or on your dual propane tank holder.
- High quality construction - Made with durable materials for long-lasting use, this propane regulator can handle up to 250 PSI of maximum working pressure. Its threaded inlets (¼" female NPT) ensure a secure connection, while the outlet (⅜" female NPT) provides steady fuel flow for all your propane needs.
- Keep your appliances going without any interruptions - Trust in our propane automatic changeover regulator to provide reliable gas supply for all your outdoor cooking needs. Upgrade your setup today!
- Alarm Type: 2-Wire Propane Gas Alarm
- Surface mount
- Includes two universal mounting brackets
- Long Life: 5 Years
- Listed to UL 1484 and 2034
- UNIVERSALLY FIT MOST GOLF CARTS: The holder is smartly designed with adjustable base to fit different size and shape of bottler slots. It works on varied slots from EZGO, Club Car, Yamaha or other carts.
- 2025 UPGRADE EXTENDABLE CUP HOLDER: Bring convenience and pleasure, enjoy fast food or coffee in your golf cart/car. Does not affect adjacent cup holders, shifters, center console cover, and car dashboard. All bracket supports for the cup holder are in the same plane, so the cup won't shake while the golf cart/car is moving
- INCREASE YOUR CUP HOLDER'S CAPACITY: Adjustable Diameter from 2.56 to 5.51 inches suitable for most bottles, drinks, coffee mugs, instant noodles, snacks, and fast food cups. Matching with 14/24/36/46oz water bottle . This cup holder expander will hold them firmly, with no risk of shaking or tipping
- EXPANDABLE BASE FOR 2.5" TO 3.9" GOLF CART/CAR CUP HOLDER: The golf cart/car cup holder expander fits most cylindrical club car cup holders. The adjustable base has an expandable diameter from 2.5" to 3.9" to keep the base firmly in place. It also compatible with different vehicles such as golf carts（for yamaha, for ezgo, for club car）, trucks, RVs, and boats
- EASY TO USE AND INSTALL: 1. Put the base in the car cup holder, and tighten the base knob to make sure the base is firm. 2. Insert the cup holder into the upper part of the base, making sure it is fully inserted. Turn the knob to adjust the size you need for the cup holder expander. 3. You can also separate them, just pull them out
Last update on 2025-05-08 / Affiliate links / Images from Amazon Product Advertising API
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SEOCONTENT-START
Bulletin No.: PIP5339
Date: Nov-2015
Subject: Disabling Or Removing CNG (Compressed Natural Gas) Fuel Systems Models: 1998-2004 Chevrolet Cavalier
1998-2005 Chevrolet Express
1998-2005 GMC Savana
1998-2016 Chevrolet Silverado
1998-2016 GMC Sierra
2015-2016 Chevrolet Impala Equipped with Bi-Fuel CNG System
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
A dealer may receive a customer request to remove or disable the Bi-Fuel CNG (Compressed Natural Gas) system. Recommendation/Instructions
General Motors does not condone the removal of the original equipped CNG systems.
The New Vehicle Limited Warranty does not cover damage caused as the result of any of the following:
Damage Due to Accidents, Misuse, or Alterations: Alteration, modification or tampering to the vehicle including, but not limited to the body, chassis, powertrain, driveline, or components – after final assembly by GM. Service Agents modifying new vehicles and installing equipment, parts, and accessories obtained from sources not authorized by GM are responsible for complying with the regulations set forth by the National Highway Traffic Safety Administration and the US Federal Motor Vehicle Safety Standards.
GMTAC (GM Technical Assistance) will not have or supply information on how to remove or disable a CNG system. GMTAC does not have specifications or information on how the vehicle will perform when the CNG fuel system is removed.
GM Technical Assistance will continue to supply information on how to diagnose and repair a properly installed original equipment system.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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SEOCONTENT-END
I am looking to remove the cng tank located in the box of the Silverado 2500 we have purchased to make room for a slat spreader to go in the box for plowing when I try to disconnect everything it throws check engine light and I was wondering what if any steps are there to removing the system
I’m not sure what’s involved in removing CNG System. As far as I know it uses a different PCM. You can try a PCM from a none CGN Truck, maybe that will work.