logo
banner banner

News Details

Home > News >

Company news about What to do after replacing a DEF pump?

Events
Contact Us
Mrs. April
86-18100162701
Contact Now

What to do after replacing a DEF pump?

2026-01-26

After replacing the DEF pump, don't drive away immediately.

These crucial steps will help ensure the system functions correctly and prevent future problems:

Fill the DEF tank: First, fill the reservoir to ensure the system has enough fluid to operate.


Check the line connections: Carefully inspect all pipes and connectors to ensure they are installed correctly and that nothing is missing.


Perform the bleeding procedure: This is the most important step! You must remove all air from the lines; otherwise, the pump will run dry and be damaged. Refer to your vehicle's service manual for specific instructions.


Perform a system test: Start the vehicle and check the dashboard for any DEF-related warning lights. Also, listen for any unusual noises from the pump.


If problems persist after these steps, it's recommended to visit a professional repair shop to have them read the fault codes using diagnostic equipment for a more accurate diagnosis.

banner
news details
Home > News >

Company news about-What to do after replacing a DEF pump?

What to do after replacing a DEF pump?

2026-01-26

After replacing the DEF pump, don't drive away immediately.

These crucial steps will help ensure the system functions correctly and prevent future problems:

Fill the DEF tank: First, fill the reservoir to ensure the system has enough fluid to operate.


Check the line connections: Carefully inspect all pipes and connectors to ensure they are installed correctly and that nothing is missing.


Perform the bleeding procedure: This is the most important step! You must remove all air from the lines; otherwise, the pump will run dry and be damaged. Refer to your vehicle's service manual for specific instructions.


Perform a system test: Start the vehicle and check the dashboard for any DEF-related warning lights. Also, listen for any unusual noises from the pump.


If problems persist after these steps, it's recommended to visit a professional repair shop to have them read the fault codes using diagnostic equipment for a more accurate diagnosis.