Why can't I find vacuum diagrams in Haynes?

#1

My '00 Silhouette - bought the Haynes manual for it - and if the vacuum diagrams are in there I can’t find them. (Whole chapter on wiring though).



Anyone know if Haynes don’t include these? Or if I’m missing them? Or where I might be able to find them - I have searched the i’net & haven’t come up with them.

#2

BTW: have already tried the autozone site as well.

#3

The emission sticker under the hood should reflect all vacuum circuits used on the engine.

Tester

#4

No separate chapter on vacuum systems in this Haynes.

The ones who MAY have a link to possible vacuum diagrams would be OK4450, Hellokit and other techs.

Which vacuum system are you looking for? PVC`s are a vacuum system for one.

(I have an '00 Silo too)

P 2B-4 in the Haynes manual #38066 shows Vacuum gauge diagnostic checks.

Like Tester said, Emissions (EVAP) sticker is the only one I have under my hood too.

#5

Tester said

The emission sticker under the hood should reflect all vacuum circuits used on the engine.
…I’ll just add that is true for all makes and models.

#6

Doh! (forehead smack) It is indeed under the hood - thanks!

#7

The only manuals I’ve seen that have vacuum diagrams or complete electrical schematics are the shop manuals.