Fuel System - Undercoating/Fuel Tank Vent Valves
87chevy22Number: 88-78-10
Section: 10
Date: NOV., 1987
Subject: UNDERCOATING/FUEL TANK VENT VALVES
Model and Year: 1982-88 CAMARO MODELS
TO: ALL CHEVROLET DEALERS
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. See illustration for vent valve location.