scope:

Introduction

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

This specification applies to the quality, reliability, durability, and performance requirements for high temperature coolant pressure caps and acts as a supplement to the GM authorized drawings.

Purpose. This standard establishes the requirements for a Coolant Pressure Caps. The functions, performance, design constraints, and validation required of the component are defined in this document. All requirements of this specification must be met in order to demonstrate design and production validation.

Applicability. Bill of Material (BOM) Row 313 Coolant Plumbing and Hardware.

Remarks. The Coolant Pressure Cap provides the regulation and the safety function in the engine cooling system. Its design is critical to the operation of the powertrain as it must maintain a full, deaerated coolant system. The engineering test schedule contained within this specification defines the minimum performance and durability criteria necessary for design and production validation. In addition, the minimum requirements for in process testing of on-going production are outlined. The schedule is intended as a supplement to normal material inspections, dimensional checking and in process controls, and should in no way adversely influence adherence to other inspection operations.