When to replace intake manifold heater in cat engine?
When to replace intake manifold heater in cat engine? If the voltmeter reads 12 volts, replace the control module. Note: The heater should continue to operate for a maximum of 60 seconds after the ignition is released from the START position if the engine is not operating. If the heater does not operate or if the heater operates for more than 60 seconds, replace the control module. How does the air intake system work on a car? If you find any damage, we have the ducts and hoses you need to make your air intake system as good as new....