W123 Fuel tank vent plugged and collapsed my fuel tank.

Check your tank vents, or you might end up with a collapsed fuel tank like I did. If you get a whoosh of air sucking sound when you remove your fuel filler cap after a long drive, you need to check this now!

This can even cause reduced power as the engine will starve for fuel after enough vacuum builds up in the tank.

In this video we cover not only checking the tank vent for proper operation but also repairing my collapsed tank, and several thoughts on how you could re-inflate your fuel tank that has become dented in.

0:00 Intro
2:12 Wet dry vac
4:34 Air compressor
5:47 Much improved
6:14 Why it collapsed
8:15 The valve
8:56 Cleaning/Breaking valve
9:56 Reinstall valve
10:48 Good to check again
11:42 The shake hands with danger method



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