You need to take off the vacuum
Brake Booster check valve from its location within the vacuum Brake Booster unit. Take off the vacuum Brake Booster hose clamp at the check valve before extracting the check valve from the pipe. After removing the
Intake Manifold proceed with the standard replacement instructions for your ly2/ly6, lc9/lmg/ly5/l76, l92 first design and l92 second design rpos. The vacuum Brake Booster hose needs to come off from where it connects to the engine while you remove the hose from the overall vehicle. Secure the vacuum Brake Booster hose at its engine position before connecting and clamping the vacuum Brake Booster check valve to the hose assembly. You should connect the vacuum Brake Booster check valve to its housing.