Emissions code · Seattle area, Washington
P0456 repair cost in Seattle
P0456 means very small fuel vapor leak. In the Seattle area, Washington, the most common fix, gas cap replacement, has a typical range of $5 to $110.
Wide range: this job varies a lot. Itemize your quote for a better answer.
How this range is built
| Part of the job | Low | High |
|---|---|---|
| Parts | $8 | $40 |
| Labor: 0 to 0.3 hours × $125 to $170 an hour | $0 | $51 |
| Fees: shop supplies, disposal, diagnostics | $0 | $10 |
| Total, rounded | $5 | $110 |
The hourly rate is the BLS Occupational Employment and Wage Statistics, May 2025 average pay for this trade in Seattle, $30.99 an hour, times 4 to 5.5 to cover what a shop bills (overhead, tools, insurance, profit). Parts are a band from budget aftermarket to the manufacturer part. Full method.
Not a repair shop, estimates only. Typical range, estimate. Not a quote. Your car, parts and shop change the number.
Why Seattle is different
The parts cost about the same everywhere. The labor rate is what changes. Auto technicians in the Seattle area, Washington earn an average of $30.99 an hour, so a shop there bills roughly $125 to $170 an hour. That moves this repair's total, and the range above already includes it.
Same repair in other areas
| Area | Typical range, estimate |
|---|---|
| Boston area, Massachusetts | $5 to $110 |
| New York City area | $5 to $100 |
| Los Angeles area, California | $5 to $110 |
| Chicago area, Illinois | $5 to $100 |
| Houston area, Texas | $5 to $95 |
| Dallas-Fort Worth area, Texas | $5 to $95 |
| Phoenix area, Arizona | $5 to $95 |
| Atlanta area, Georgia | $5 to $100 |
| Miami area, Florida | $5 to $95 |
What the code means, causes and what to check first are on the P0456 page.
Not a repair shop, estimates only. Typical range, estimate. Prices updated October 2026.