# Service bulletin 100803

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10004982
- Published by NHTSA: 2004\-01\-22
- Manufacturer's number: 100803
- Manufacturer's date: 2003\-10\-08
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE

## NHTSA's summary

THE ENGINE DIAGNOSTIC FUEL LEAKS INSIDE OF THE ENGINE. GM VOICEMAIL LOG. THIS INCLUDES 2000 \- 2004 CHEVROAND GMC C4500 AND 5500 TRUCKS. \*TT

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine

## Vehicles listed

- 2001 to 2004 CHEVROLET SILVERADO
- 2001 to 2004 GMC SIERRA

## Recalls for the same vehicles and component

- [2007363](/recalls/tc/2007363.md), 2007-11-09: Engine
- [07V521000](/recalls/nhtsa/07V521000.md), 2007-11-07: ENGINE AND ENGINE COOLING
- [06V289000](/recalls/nhtsa/06V289000.md), 2006-08-03: ENGINE AND ENGINE COOLING

## Other bulletins for the same vehicles and component

- [03\-06\-01\-023I](/bulletins/11012907.md), 2025-01-17, Service bulletin: ENGINE. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- [03\-06\-01\-023H](/bulletins/11010544.md), 2024-11-14, Service bulletin: ENGINE. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- [16\-NA\-383](/bulletins/11004761.md), 2024-07-16, Service bulletin: ENGINE; FUEL/PROPULSION SYSTEM. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build\-up.
- [16\-NA\-383](/bulletins/10251890.md), 2024-03-19, Service bulletin: ENGINE AND ENGINE COOLING. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build\-up.
- [06\-06\-01\-019C](/bulletins/10251887.md), 2024-03-19, Service bulletin: ENGINE AND ENGINE COOLING. This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- [22\-NA\-074](/bulletins/10250775.md), 2024-02-29, Service bulletin: ENGINE AND ENGINE COOLING. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
- [PI1394B](/bulletins/10249579.md), 2024-02-02, Service bulletin: POWER TRAIN; ENGINE AND ENGINE COOLING. This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- [130089009](/bulletins/10246631.md), 2023-12-11, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Expanded Availability for Remanufacture and Return \(R\&R\) Electronic Control Modules
- [03\-00\-91\-001I](/bulletins/10245395.md), 2023-11-22, Service bulletin: WHEELS; POWER TRAIN; STEERING; SUSPENSION; ENGINE AND ENGINE COOLING. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis\-Road testing procedure when diagnosing vibration concerns.
- [23\-NA\-153](/bulletins/10242843.md), 2023-09-26, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

JSON: [/v1/bulletins/10004982](/v1/bulletins/10004982)

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