Cold System
Check BVSV with coolant temperature below 86°F (30°C). Connect a vacuum gauge to distributor main diaphragm hose. See Figure. Start engine and check that vacuum gauge indicates zero independent of throttle valve position.
Check BVSV with coolant temperature below 86°F (30°C). Connect a vacuum gauge to distributor main diaphragm hose. See Figure. Start engine and check that vacuum gauge indicates zero independent of throttle valve position.