A/C - Refrigerant System Sealer/Leak Detection
Information IB04-12-S001A/C Refrigerant System Sealer and A/C System Leak Detecting Guidelines
Issue Date: January 2004
Affected Vehicles
All Isuzu models equipped with Air Conditioning.
Service Information
It has come to our attention that A/C system sealers, A/C system stop-leak products, and A/C system seal conditioners have become available to the consumer and A/C repair industry.
Isuzu DOES NOT endorse or approve the use of any aftermarket A/C system sealer, A/C stop-leak product or A/C seal conditioning product in any Isuzu vehicle. The use of these aftermarket products may cause damage to A/C systems and to A/C service equipment.
A/C systems with failures found to be caused by A/C system sealers, A/C stop-leak products, or seal conditioners are not covered by the Isuzu New Vehicle Warranty or the Isuzu Replacement Part Warranty.
Isuzu recommends the detection of A/C system leaks through the use of Isuzu approved leak detectors and fluorescent leak detection dyes. Isuzu recommends the replacement of leaking A/C components and the repair of leaking A/C connections. Many federal, state/provincial and local regulations prohibit the recharge of A/C systems with known leaks.
Vehicles found or suspected to be contaminated by an A/C system sealer should be treated as a contaminated system. A/C system flushing may not remove the system sealer from the system. Follow the equipment manufacturer's recommendations on decontamination procedures when an A/C charging system has been contaminated.
Using Isuzu approved (refrigerant-based) system flushing on A/C system contaminated with sealer products can introduce these sealer products to A/C service equipment which may cause equipment damage. Unapproved system flushing methods can leave unacceptable amounts of flushing agent in vehicle systems causing further damage. Component replacement may be necessary for correcting a vehicle system contaminated with system sealer products.
Isuzu recommends the use of only R-134a refrigerant for all vehicles manufactured since May 6, 1993. Isuzu does not recommend blended refrigerant or hydrocarbon-based refrigerant. Isuzu recommends only the application specific compressor oil in the exact quantity specified for the application.
Disclaimer