Emissions
Code P0457
EVAP Leak Gas Cap Loose
Plain English Meaning:Gas cap loose or missing
✅
Green: Safe to Drive
Very minor issue
What You'll Notice (Symptoms)
- •Check engine light
Most Common Causes
1Loose or damaged cap
Verified Repair Playbook
Required Mechanic Tests
A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:
Inspect cap seal
Typical Fix Paths & Estimated Costs
Replace gas cap $20–$50
🛒 Parts for P0457 Repair
Common replacement parts for emissions codes (Paid links)
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Fair Pricing Guides
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