How Much Does It Cost to Fix Code P1450? The Details

Facing a diagnostic trouble code (DTC) in your vehicle can often be a stressful experience. Code P1450, a relatively common one, is usually found in Ford vehicles, although it can also appear in other models. When this code appears, it typically indicates a problem with excessive vacuum in the evaporative emission control (EVAP) system. In this article, we explore about how much does it cost to fix code p1450.

how to fix code p1450

What Does Code P1450 Mean?

Before diving into the costs, it’s essential to understand what this code signifies. DTC Code P1450, often termed as “Unable to Bleed up Fuel Tank Vacuum,” indicates a malfunction within the evaporative emission control system, a part of the vehicle responsible for reducing the emission of volatile organic compounds from the fuel system. This issue can arise for various reasons, including faults in the canister purge valve, fuel filler neck, fuel tank, or other components of the evaporative emission system.

How Much Does It Cost to Fix Code P1450?

The first step to determining the cost is to identify the precise issue. This will generally involve a diagnostic check by a professional with access to advanced diagnostic tools. The price for a diagnostic assessment can vary, but normally, you should pay between $75 to $100 USD.

The first step to determining the cost is to identify the precise issue. This will generally involve a diagnostic check by a professional with access to advanced diagnostic tools. The price for a diagnostic assessment can vary, but normally, you should pay between $75 to $100 USD.

Potential Repairs and Costs

Fixing the P1450 code Ford can encompass a variety of repairs, each having its cost spectrum, largely dependent on the make and model of the vehicle. Here is an approximate breakdown, including parts prices:

1. Canister Purge Valve (CPV) Replacement:

The CPV part typically costs between $40 and $100. When you include labor, which might range from $50 to $100, you could be looking at a total cost of $90 to $200.

2. EVAP Hoses Repair/Replacement:

The hoses generally cost between $10 and $50. The labor for this repair could be around $50 to $120. Thus the total might be approximately $60 to $170.

3. Fuel Tank Pressure (FTP) Sensor Replacement:

The FTP sensor can range from $40 to $150 for the part. Including labor costs, which could be around $80 to $120, the total cost may range from $120 to $270.

4. Fuel Filler Neck:

If this part needs replacement, it might cost between $50 and $150 for the part, with labor costs of about $50 to $150, making the total around $100 to $300.

5. Vapor Canister:

If this needs replacement, the part can cost between $100 and $300, with labor costs ranging from $50 to $150, totaling $150 to $450.

Please note that these are estimated costs, and the actual prices can vary based on various factors, including the geographic location, the specific make and model of the vehicle, and the pricing strategies of individual repair shops. It’s always best to get a few quotes from different service providers for a more precise estimate.

Additional Considerations

When considering the repair cost, keep in mind that prices can vary based on your geographical location and the make and model of your vehicle. It’s also essential to consult a trusted mechanic or repair shop for an accurate estimate.

What is the Symptoms of the Ford P1450?

The Ford P1450 trouble code indicates an issue with the Evaporative Emission (EVAP) control system, specifically that the fuel tank vacuum cannot be relieved. Here are the common symptoms associated with the DTC code:

  1. Check Engine Light: The most noticeable symptom is the illumination of the Check Engine Light on the dashboard.
  2. Starting Issue: You may experience starting problem, particularly after refueling.
  3. Poor Fuel Economy: There may be a noticeable decrease in fuel efficiency.
  4. Engine Performance Issues: The engine may run roughly, stall, or hesitate during acceleration.
  5. Fuel Smell: There might be a strong smell of fuel due to vapor leaks.
  6. Failed Emissions Test: Your vehicle might fail an emissions test due to the malfunctioning EVAP system.

It is important to diagnose and repair the “unable to bleed up fuel tank vacuum” issue promptly to avoid further damage to the vehicle’s emissions system.

What Would Cause a P1450 Code?

The engine code P1450, often defined as “Unable to Bleed up Fuel Tank Vacuum” or “Excessive Vacuum in the Fuel Tank,” triggers when the vehicle’s control module detects an issue with the evaporative emission control system (EVAP). Here are some potential causes for a P1450 code:

1. Faulty Canister Purge Valve (CPV):

The CPV controls the flow of fuel vapors from the fuel tank to the engine. If it becomes stuck or fails to operate correctly, it can lead to excessive vacuum in the fuel tank.

EVAP Purge Valve

2. Damaged EVAP Hoses:

Cracked or damaged hoses in the EVAP system can create a condition where excessive vacuum is generated. It’s essential to check all hoses for signs of wear and tear.

3. Faulty Fuel Tank Pressure (FTP) Sensor:

This sensor monitors the pressure inside the fuel tank. A malfunctioning FTP sensor may send incorrect signals to the vehicle’s computer, triggering the code. This may also trigger Code P219A.

4. Blocked Vapor Canister:

The vapor canister, which stores fuel vapors before they are transferred to the engine for combustion, can become blocked or clogged, potentially causing excessive vacuum in the fuel tank.

5. Defective Fuel Filler Neck:

If the fuel filler neck, which connects the fuel cap to the fuel tank, is damaged or leaks, it can lead to issues with the EVAP system, including triggering the P1450 code and affecting vehicle acceleration.

6. Malfunctioning Fuel Level Sensor:

Sometimes, an incorrect fuel level reading might conflict with the EVAP system’s operations, triggering the error code.

7. Gas Cap Issues:

Although less common, issues with the gas cap (like a loose or damaged cap) can sometimes cause problems with the EVAP system, including generating a P1450 code.

8. Compromised Seals:

Seals in the EVAP system can degrade over time. If these seals are compromised, they might not be able to maintain the necessary vacuum levels, causing the P1450 code to appear.

To accurately identify the cause, a detailed diagnostic process involving a visual inspection and diagnostic tools may be necessary.

Causes of P1450 Code YouTube

Preventative Tips:

Regular maintenance and check-ups can prevent issues related to the EVAP system. Here are some preventative tips:

  1. Regular Inspections: Have your EVAP system checked regularly, especially if you live in an area with rough roads that can cause wear and tear on the system’s components.
  2. Avoid Overfilling Your Gas Tank: Overfilling can cause liquid fuel to enter the charcoal canister, damaging the system.
  3. Tighten Your Gas Cap: A loose or damaged gas cap can cause an EVAP system leak. If your check engine light comes on, checking the gas cap should be your first step.

Is it safe to drive with a p1450 code?

Driving with a P1450 code, which indicates an Evaporative Emission Control System (EVAP) issue, isn’t typically dangerous. The EVAP system manages fuel vapors, preventing them from polluting the environment. While driving with this code won’t cause immediate harm, but it can have consequences:

  1. Environmental Impact: A malfunctioning EVAP may release more fuel vapors into the atmosphere, increasing pollution.
  2. Performance Issues: Some drivers might notice difficulty starting the car, especially after refueling, or a drop in overall performance.
  3. Fuel Economy: An impaired EVAP can affect fuel efficiency, leading to increased fuel consumption.
  4. Potential for Further Damage: Overlooking the code could lead to more significant issues down the line, possibly incurring more repair costs.

While it’s not an immediate safety concern, addressing a Ford code P1450 helps ensure vehicle efficiency and minimize environmental impact.

How to Fix P1450 Code?

Fixing a p1450 Ford focus involves diagnosing and addressing the specific issue within the EVAP system that is causing the fault. Here are the general steps to take:

  1. Read the Codes: Use an OBD-II scanner to confirm the trouble code p1450 and check for any additional related codes that might provide more context.
  2. Inspect the EVAP System:
    • Check the Fuel Cap: Ensure the fuel cap is properly tightened and in good condition. A loose or damaged fuel cap can cause EVAP system issues.
    • Inspect Hoses and Connections: Check the EVAP hoses and lines for any visible signs of damage, cracks, or loose connections.
    • Check the EVAP Canister: Inspect the EVAP canister for signs of damage or clogging.
  3. Test the EVAP Components:
    • Purge Valve: Test the EVAP purge valve for proper operation. It should open and close correctly, and a malfunctioning purge valve can cause the P1450 code.
    • Vent Valve: Check the EVAP vent valve for proper operation. Ensure it is not stuck open or closed.
    • Pressure Sensor: Test the fuel tank pressure sensor to ensure it is providing accurate readings.
  4. Perform a Smoke Test: A smoke test can help identify leaks in the EVAP system. Smoke is introduced into the system, and any leaks will be visible as smoke escapes.
  5. Replace Faulty Components: Based on the diagnosis, replace any faulty components such as the purge valve, vent valve, fuel cap, or pressure sensor.
  6. Clear the Codes: After repairs, use the OBD-II scanner to clear the trouble codes. Drive the vehicle to see if the code reappears.

Specific Steps for Common Repairs:

  • Replacing the Fuel Cap:
    1. Purchase a new fuel cap that is compatible with your vehicle.
    2. Remove the old fuel cap and install the new one, ensuring it is tightened properly.
  • Replacing the Purge Valve:
    1. Locate the EVAP purge valve, typically near the engine.
    2. Disconnect the electrical connector and the EVAP line from the purge valve.
    3. Remove the valve and replace it with a new one.
    4. Reconnect the electrical connector and the EVAP line.
  • Replacing the Vent Valve:
    1. Locate the EVAP vent valve, usually near the fuel tank or EVAP canister.
    2. Disconnect the electrical connector and the EVAP line from the vent valve.
    3. Remove the valve and replace it with a new one.
    4. Reconnect the electrical connector and the EVAP line.

If you are not comfortable performing these tasks yourself, it is worthwhile to take your vehicle to a qualified mechanic to ensure proper diagnosis and repair.


Fixing code P1450 can potentially be a moderately expensive affair, depending on the exact issue at hand. However, addressing it can prevent further damage and more costly repairs. Always work with a reputable professional to get a precise diagnosis and appropriate repair work done, keeping your vehicle running smoothly and maintaining its environmental compliance.


Mr. Shafiqule Islam is a graduated Mechanical Engineer and has more than 15 years experience of repairing and maintenance of different brand vehicles like Toyota, Mitsubishi, Ford, Mercedes, BMW etc. He is also giving training to Mechanics. He has started writing to share his practical knowledge to Vehicle Owners, Drivers and Mechanics to keep their cars at best fit.

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