Toyota 79 series fuel tank breather

Submitted: Friday, Sep 09, 2022 at 12:11

ThreadID: 144778 Views:10135 Replies:3 FollowUps:1

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@Yackandandah

Been having a issue with gurgling sound when removing fuel cap, either one, on my 2011 79 series ute. The breather is in the fuel cap. Both were full of dirt. The photo with the 2 drills shows the holes that were clogged. I think a better long term fix would be to tap into the line that connects the 2 tanks and run a separate breather hose.

Fuel cap

Kevin

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Reply By: Member -Pinko (NSW) - Friday, Sep 09, 2022 at 16:08

Friday, Sep 09, 2022 at 16:08

Hi Kevin
I bought a new cab / chassis in 2007 it has gurgled since new when the cap is removed.

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Follow Up By: Bob Y. - Qld - Saturday, Sep 10, 2022 at 13:04

Saturday, Sep 10, 2022 at 13:04

I can’t remember any Landcruisers that didn’t gurgle when removing the fuel cap, at some stage of their lives. Have also read lately of blokes fuel tanks being sucked in, due to blocked breathers, though I feel this may only have occurred with the later 130L tanks, on both single & dual cab models?

During the ‘70’s, some more senior gentlemen than I, and more experienced too, were often concerned about another valve/breather that is hidden away above the main tank. This little gizmo vented into the chassis, and was often blocked by mud in the chassis or broke away and filled with, mud, dust or wasp nests. Don’t recall if any tanks imploded but do recall these senior gents were more concerned about poor performance from the early asthmatic, Toyota diesel engines.
Have added a couple of images of this hidden valve for those unaware of it’s presence.