4 Grand Master
Loosening the cap on the resevoir will keep the system from becoming pressurized. You may get away with leaving it loose all the time in these temps. Otherwise loosening it at shutdown will prevent it from pressurizing with the heat soak experienced when the coolant stops flowing.
"The gas pedal wouldn't go to the floor if it weren't meant to be there"
Major Contributor
i like this.... maybe instead of leaving it ****loose, i actually have a spare cap - maybe i could drill a pin-hole in it and it would allow the system to depressurize without opening the hood every time i drive? wouldn't i get air bubbles?Originally Posted by Ross
Last edited by tim eh?; 01-01-2009 at 10:53 AM.
4 Grand Master
No, no air bubbles. If you use the spare cap make the hole more than a pinhole.
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