Exhaust Gas Recirculation: Testing and Inspection
INSPECTION OF BVSVCHECK BVSV BY BLOWING AIR INTO PIPE
(a) Drain the coolant trom the radiator into a suitable container.
(b) Remove the BVSV.
(c) Cool the BVSV to below 30°C (86°F) with cool water.
(d) Blow air into a pipe and check that the BVSV is closed.
(e) Heat the BVSV to above 44°C (111°F) with hot water.
(f) Blow air into a pipe and check that the BVSV is open.
(g) Apply sealant to the threads of the BVSV and reinstall.
Sealant: Part No.08833 - 00070, THREE BOND 1324 or equivalent
(h) Fill the radiator with coolant.
If a problem is found, replace the BVSV.
INSPECTION OF VCV
CHECK VCV BY BLOWING AIR INTO PIPE
(a) Check that the air is sucked to pipe Z, while applying vacuum above 30 mmHg (1.18 in. Hg, 4.0 kPa) to pipe S.
(b) Stop the applied vacuum.
(c) Blow air into pipe Z and check that the air comes out of the air filter.
If a problem is found, replace the VCV.