P0455 2002 Ford F150 Code - Evaporative Emission Control System Leak Detected Gross Leak
Quick Answer
Vehicles that meet enhanced evaporative requirements utilize a vacuum-based evaporative system integrity check. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0455 2002 Ford F150 indicates Evaporative Emission Control System Leak Detected Gross Leak.
- Common causes
- Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P0455 2002 Ford F150 Description
The Diagnostic Trouble Code (DTC) will set when the EVAP control system has a very large leak such as the fuel filler cap fell off, the EVAP control system does not operate properly.
What are the Possible Causes of the DTC P0455 2002 Ford F150?
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
How to Fix the DTC P0455 2002 Ford F150?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak, or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak, or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).
There is a factory service bulletin for the 2002 Ford F-150:
2002 Ford F-150 Factory Service Bulletin OBDII Code P0455
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0455 2002 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0455 2002 Ford F150 Code
1. What does OBDII code P0455 on a 2002 Ford F150 mean?
- OBDII code P0455 indicates that the Evaporative Emission Control System has detected a gross leak.
2. What are common symptoms of a P0455 code on a 2002 Ford F150?
- Common symptoms of a P0455 code may include the check engine light coming on, a fuel odor near the vehicle, or difficulty starting the engine.
3. What are possible causes of a P0455 code on a 2002 Ford F150?
- Possible causes of a P0455 code include a loose or damaged gas cap, a leak in the evaporative emission system, a faulty purge valve, or a cracked or damaged charcoal canister.
4. How serious is a P0455 code on a 2002 Ford F150?
- While a P0455 code may not cause immediate drivability issues, it can result in increased emissions and decreased fuel efficiency. It is important to address the issue promptly.
5. How can I diagnose a P0455 code on a 2002 Ford F150?
- Diagnosing a P0455 code typically involves checking the gas cap for tightness, inspecting the evaporative emission system components for leaks, and using a smoke machine to pinpoint the source of the leak.
6. Can I drive my 2002 Ford F150 with a P0455 code?
- It is generally safe to drive your vehicle with a P0455 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent further emissions-related problems.
7. How can I repair a P0455 code on a 2002 Ford F150?
- Repairs for a P0455 code may involve tightening or replacing the gas cap, repairing or replacing damaged hoses or components in the evaporative emission system, or replacing a faulty purge valve.
8. Will resetting the check engine light resolve a P0455 code on a 2002 Ford F150?
- Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing the P0455 code. The problem should be diagnosed and repaired to prevent the code from returning.
9. How much does it cost to fix a P0455 code on a 2002 Ford F150?
- The cost to fix a P0455 code can vary depending on the specific cause of the issue and the labor rates in your area. Repairs may range from a simple gas cap replacement to more extensive system repairs.
10. Can a P0455 code on a 2002 Ford F150 cause the vehicle to fail an emissions test?
- Yes, a P0455 code can cause the vehicle to fail an emissions test due to increased emissions resulting from a leak in the evaporative emission control system. It is important to address the issue before attempting an emissions test.
Discuss the causes and fixes for P0455 2002 Ford F150 OBDII Code
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replaced a fuel filter. there is no pressure at fuel rail. fuel pump primes.
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The code means that there is a big leak in the EVAP system. A leak in the EVAP system should not cuase a no start problem.
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