How do you drain coolant from a Cummins?
Locate the radiator drain plug and position a catch pan underneath it. Open the radiator drain plug with a pair of pliers and allow the coolant to drain from the reserve coolant tank. When the reserve tank is empty, open the radiator cap to allow the rest of the coolant to drain out of the radiator.
What is the purpose of a radiator Petcock?
Function. The major function of the radiator drain petcock is not only to stop coolant from leaking through the hole underneath the radiator, but it serves a reverse role too. The petcock has been placed in modern cars to make draining a radiator an easy task.
What if you put too much antifreeze in your car?
Coolant expands as it heats and contracts when it cools. The extra space prevents damage to your engine and hoses. In worst case scenarios, overfilling your antifreeze tank can lead to electrical damage if overflow comes into contact with engine wiring.
Can a bad O2 sensor cause white smoke from exhaust?
When operating properly, the O2 sensor cannot cause your engine to smoke. If your car runs excessively lean for an extended period of time, you could cause serious engine damage, resulting in black, white or blue smoke from the exhaust, but usually you will be alerted to other symptoms first, such as rough running.
Why do Cummins smoke so much?
According to Zack Ellison at Cummins, “White smoke is an indication of unburned diesel fuel. “Blue smoke is almost always a byproduct of excessive oil consumption,” adds Ben Hanks, John Deere Power Systems. Black smoke is caused by a very rich fuel-to-air ratio.
What is the problem to a diesel engine if the white smoke visible during engine was running?
White smoke coming from the exhaust usually points to one point of failure: the injectors. Usually, white smoke indicates that the diesel fuel is not burning correctly. Unburned diesel fuel will make its way through the exhaust completely unused. Be careful of white smoke as it will irritate your eyes and skin.