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Sorry to my Subaru brethren

I guess I'll keep updating the progress on this truck. It did take a while, but the evap code returned (and the monitor never set) with the new gas cap, so I turned my attention to the canister vent solenoid. It's really easy to pull off, so Sunday afternoon I took it off and tested it. My test revealed the solenoid wasn't actuating, or so I thought. In the back of my mind I knew I should have smoke tested the thing but nevertheless I went and bought a new vent solenoid (actually it's the whole leak detection pump unit, about $300). I put it on the truck and crossed my fingers.

This morning, the evap code returned. So when I got off work this evening I finally did what I should have done from the beginning and fired up the smoke machine. This is when stuff got stupid. The new vent pump/solenoid unit was pouring smoke out of the electrical connector. I took it off and put the oem one back on and I finally found the real leak coming from the fuel filler overflow line. Here's a link to someone with a whole thread on fixing this problem DIY, since toyota doesn't sell that line individually.


So now I know what needs to be fixed and I can get out of this for much less that the actuator would've cost. I don't know how many times I have to learn the lesson, always do proper diagnostics. 20250303_201159.jpg
 
I have an 08 Tundra as well. One thing to do on these is to make sure the coolant has been replaced and done frequently. The 5.7 3UR-FE engines are starting to blow head gaskets on ones that didn't have the coolant frequently changed. The coolant turns acidic after time and eats away at a tiny spot on the head gasket so exhaust blows into the cooling system. Not fun.
Nice truck though, I love mine!
 

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