Fuel Tank Vent Valves - Undercoating
Bulletin Number: 88-10-6Reference Number: 831011
Publish Date: 10/87
Subject: UNDERCOATING/FUEL TANK VENT VALVES
Models
Affected: 1982-88 FIREBIRD
Caution should be exercised when applying undercoating to these vehicles as they are equipped with underbody mounted fuel tank vent valves.. Applying undercoating to the valve must be avoided as this may result in reduced fuel tank venting capacity and subsequent release of greater amounts of fuel vapor than normal upon removal of the fuel cap under some conditions.