Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's system isn't seeing any liquid coming from the tank that helps clean the exhaust. It's like when you turn on a faucet and no water comes out.
The P218F code is triggered when the vehicle's computer detects that there is no flow of reductant from the tank to the exhaust system.
The reductant system is responsible for injecting a fluid, often known as DEF (Diesel Exhaust Fluid), into the exhaust stream of diesel engines to reduce emissions. The P218F code indicates that the system has detected no flow of this fluid, which could be due to a blockage, pump failure, or empty tank.
• Check engine light on
• Reduced engine performance
• Increased emissions
• Empty reductant tank
• Blocked reductant line
• Faulty reductant pump
Reductant: A fluid used to reduce emissions in diesel engines.
DEF: Diesel Exhaust Fluid, a type of reductant.
• Check the level of the reductant tank.
• Inspect reductant lines for blockages.
• Test the reductant pump for proper operation.
• Refill the reductant tank.
• Clear any blockages in the reductant line.
• Replace the reductant pump if faulty.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Ford F-250
• Chevrolet Silverado 2500
• Ram 2500
• Regularly check and refill the reductant tank.
• Perform routine maintenance on the reductant system.
• Use high-quality DEF fluid.
Emission Control Issue
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional if unsure.
• Regularly maintain the exhaust system.
Check with your vehicle manufacturer for specific warranty coverage on emission-related components.
The P218F code has become more common with the increased use of DEF systems in diesel engines to meet stricter emission standards.
Moderate – Addressing this issue promptly will help maintain vehicle performance and emission standards.
Driving with a malfunctioning emission system may violate emission laws and could lead to fines.
• Vehicle at operating temperature
• DEF system active
The reductant tank is typically located near the fuel tank, and the lines run from the tank to the exhaust system.
Q: What happens if I ignore the P218F code?
A: Ignoring this code can lead to increased emissions, reduced engine performance, and potential legal issues.
Q: Can I drive with a P218F code?
A: While you may be able to drive, it's not recommended as it can affect performance and emissions.
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