Gas cap gasket, and not a whole new cap, fixed my CEL and codes

[Seymore Butts]

27 months after replacing my gas cap, the evap system leak codes returned. This time, instead of replacing the whole cap again, I got a new gasket from my dealer. Installation took about ten seconds. The older gasket looked flat and stiff, and felt more like plastic than rubber. The new one was nice and supple, like squishy rubber parts should be.

Cost was about six bucks with sales tax.

Part number 77316-33042

I ordered it here: 7731633042 - Toyota Gasket, fuel tank cap. Tube, california, spec | Stevinson Toyota West, Lakewood CO

 

[08TxRunner]

It's not usually the gasket that causes the problem, it's the spring-lock mechanism that won't allow the cap to tighten properly. Glad that worked for you though.

 

[Mantilgh]

Idk, I think it’s usually the gasket. Mine needs replaced and still tightens fine


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[Kevin G.]

Here ya go......

Filler Cap Gasket Genuine OEM Toyota 77316-33042

eBay item number:233279694654

Total( tax,title,license,to my door)= $9.67

Enjoy.......

Kevin

 

[little_titan]

I replaced the gas cap with toyota oem and the gaskets w toyota and the cel codes keep coming back every month...any tips?

 

[drallan]

I replaced the gas cap with toyota oem and the gaskets w toyota and the cel codes keep coming back every month...any tips?

Might not be the best long term solution, and also might depend on your climate. But my wife called one day in a panic due to CEL and a I think a couple other lights came on. Fortunately we keep a bluetooth OBDII connected at all times in our cars and have the torque app. I had her pull up the code and when I realized what it was I had her try rubbing a bit of neosporin (essentially Vaseline) on the gasket. CEL light went away. Might be worth a shot.

 

[awhitney1]

Thanks for info everyone, something for me to keep in mind if I come across this issue.