🔧 Genuine Toyota 77177-33010 Check Valve Gasket: Authentic Replacement Part for Optimum Performance Review

This gasket caused me nothing but problems in my automotive project. After I put it to the test, it became obvious that the material was way too thin and flimsy. It didn't hold up to even moderate use and began to leak. The only positive is that it was easy to install, but that's not worth the headache of dealing with a faulty product. Save yourself the trouble and find a better gasket.

2001 Toyota MR2 Spyder with 1zz engine Flashing engine light/code for vacuum/fuel system. I tried the gas cap but to no avail; However, Toyota parts 77390-33011 and 77177-33010 worked. Be careful with AC power lines and a hoist if you have a hoist and gas tank jack. Also, get a set of battery-powered ratchets.

This and the valve itself solved the check engine light problem on our Toyota 4Runner (2001). No more smell of petrol. If you can smell fuel in front of your 4Runner's left rear wheel, this is probably the cause. Reaching the valve and seal is very difficult and requires you to reset the tank completely. Search the internet for articles on how to do this.