2003 Hilux 3TD SR5 boost gauge.

Thank you Athol. Excuse my ignorance but what exactly is a Christmas tree in regard to the inlet manifold? Is it a series of ports to enable sensors and the like? What does it look like?

Thanks again.

What does it look like?

Like a christmass tree!......sorry could not resist.

cheers

Flyingfrenchman
What is commonly referred to as a Christmas Tree in automotive terms is a part that is screwed into the engine at some point (in this case the inlet manifold )and it makes one drilling into that part available for multiple connections. In this case it could be the original tapping for some vacuum operated component where the Christmas Tree has only been opened up (by removal of a nipple) for a single, or a number of different components.
Often they are used for the vacuum supply to a brake booster, and also the vacuum supply to the air conditioner or similar.

Hope that helps
Regards
Athol

Thank you very much.
Cheers