P1450 Ford Code: Your Guide To Keeping EVAP System In Check

When your vehicle’s check engine light illuminates and you discover the P1450 Ford code, it’s a sign that your car is trying to communicate an issue within the Evaporative Emission (EVAP) system. 

In this article, we’ll help you understand what this code means. We’ll talk about the signs your car might show, why it happens, and give you step-by-step instructions to figure out and fix the issue. Whether you’re a car expert or want to know what’s going on under the hood, this article will make dealing with the P1450 code a breeze. 

Let’s get started!

P1450 Code On Ford: An Overview

Here is a summary of the P1450 code in Ford vehicles. Check it out!

  • Definition: Unable To Bleed Up Fuel Tank Vacuum
  • Severity: Medium
  • DIY Skill Level: Intermediate
  • Continue To Drive?: Yes
  • Estimated Repair Cost: $20 – $400

What Does The P1450 Mean In Ford Vehicles?

The P1450 code indicates an excessive vacuum condition within the EVAP system or fuel tank. This elevated vacuum level prevents the Powertrain Control Module (PCM) from properly bleeding or releasing the vacuum to maintain the required pressure within the system.

When the PCM detects this prolonged high vacuum condition, lasting for more than sixty seconds, it identifies a fault and subsequently triggers the Check Engine Light. Simultaneously, it stores the P1450 code in the vehicle’s diagnostic system, indicating to the vehicle owner or technician that there is a problem within the EVAP system or fuel tank that requires attention and diagnosis.

P1450 Ford
You shouldn’t ignore this P1450 code because it can lead to some potential damage in the long term.
(Credit: focusrs.org)

The purpose of the EVAP system is indeed crucial in preventing the release of gasoline vapors into the atmosphere. When this system fails to maintain the specified vacuum levels, it can increase emissions and environmental pollution.

The P1450 code is commonly encountered in Ford vehicles, including models such as the Ford Focus, Ford Escape, Ford Fusion, Ford Explorer, and Ford F-150, among others. Accompanying codes associated with the P1450 code may include P0442, P0455, P0446, P0456 and P0451.

How Severe Is The P1450 Code In Ford Vehicles?

The severity of the P1450 code can vary depending on the root cause and the vehicle’s overall condition. However, it’s generally considered a moderate-level issue. While this code doesn’t typically represent an immediate safety hazard, it should not be ignored.

So, can you still drive with this code? – Yes, you are able to drive. However, continuing to drive with the P1450 code illuminated for a long time may lead to increased emissions and environmental pollution. Additionally, it can negatively impact your vehicle’s fuel efficiency and overall performance. We advise against extended driving with this code active.

It’s advisable to have your vehicle inspected and repaired as soon as possible by a qualified mechanic to prevent potential long-term damage.

What Are The Signs Of The P1450 Ford Codes?

You may experience the following symptoms when the P1450 code is set:

  • Illuminated check engine light
  • Reduced fuel efficiency
  • Difficulty starting the engine
  • Rough idling
  • Increased emissions

Note: In some cases, the only noticeable symptom of the P1450 code may be the illumination of the Check Engine Light. Additionally, in rare circumstances, you might experience a delay in engine start-up time after filling the tank.

Read more: B1352 Ford Code: Ignition Troubles Unveiled And Resolved

What Are The Causes Of The P1450 Code On Ford?

The P1450 code can have various causes, with the most common ones being:

  • Faulty or stuck EVAP canister vent valve
  • Wiring and connector issues
  • Damaged EVAP canister
  • Issues with the EVAP purge valve
  • Defective fuel tank pressure sensor
  • Jammed fuel filter cap

P1450 Ford Code Diagnosis And Repair

When dealing with the P1450 code, having the right tools and following a systematic procedure can help diagnose and resolve the issue effectively.

Essential Tools And Parts

Step-by-Step Guide 

  1. Begin by connecting the OBD-II scanner to the vehicle’s diagnostic port and retrieve the trouble code.
  2. Inspect the wiring and connectors associated with the EVAP system, repairing any damaged or loose connections.
  3. If the fuel filter cap is jammed, replace it with a new one.
  4. Test the EVAP canister vent valve and EVAP purge valve using a multimeter to ensure proper functionality. Replace them if they are faulty.
  5. Check the condition of the EVAP canister for damage or cracks and replace if necessary.
  6. Examine the fuel tank pressure sensor and replace it if it’s defective.
  7. Clear the trouble code with the OBD-II scanner and start the vehicle to confirm that the Check Engine Light remains off.
Tutorial on replacing the purge solenoid (most common culprit)

Note: It’s worth noting that there are Technical Service Bulletins (TSBs) related to the P1450 code for specific vehicle models. If you own a 2015-2016 Ford Focus, we recommend consulting TSB 16-0055 for additional guidance. Similarly, if you have a 2013-2017 Ford C-MAX Hybrid or a 2013-2017 Ford Fusion, you should check TSB 19-2207 for relevant information and potential fixes related to the P1450 code. These TSBs may provide specific insights and instructions tailored to your vehicle model, assisting in the diagnosis and resolution of the issue.

Read more: P1151 Ford Code: Decoding And Repair Guide

DIY Repair Level And Estimated Costs

This repair falls within the intermediate DIY level, suitable for those with experience in automotive repair. However, if you are unsure about the diagnosis or lack the necessary tools and experience, it is advisable to seek assistance from a qualified mechanic to avoid any potential complications.

Here’s an estimated cost breakdown for common repair tasks:

Repair TaskCost Range
Wirings repair$20 – $150
EVAP canister vent valve replacement$50 – $150
EVAP purge valve replacement$150 – $300
Fuel tank pressure sensor replacement$250 – $290
Fuel filter cap replacement$30 – $60

Remember that labor costs can vary depending on your location and the specific repair shop you choose, so it’s a good idea to obtain quotes from multiple sources if you opt for professional assistance.


Facing the P1450 Ford code can be daunting, but with the insights provided here, you’re better equipped to tackle this challenge. By understanding the symptoms and causes of the P1450 code, you can respond effectively. Whether you decide to roll up your sleeves for a DIY fix or consult a trusted mechanic, the goal is the same: to get your vehicle back on the road running smoothly.

Stay informed, stay proactive, and share your experiences and insights with others in the automotive community. If you found this article helpful, don’t hesitate to share it and leave your comments below. Together, we keep our cars in top shape and our journeys trouble-free.

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