Vacuum tube from fuel pressure regulator?
#1
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Vacuum tube from fuel pressure regulator?
I have a 1987 L98 engine. The fuel pressure regulator has a tube (vacuum?) that runs to the front of the engine to the AIR devices. I cannot find any mention of it in my Helms manual either under the discussion of the AIR system or under the fuel system.
My questions are: Is it a vacuum line or something else? and What's it's purpose?
My questions are: Is it a vacuum line or something else? and What's it's purpose?
#4
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Originally Posted by 65Z01
Hmmm, on my '88 there is a short "L" vacuum line from the FPR to a fitting on the left rear of the plenum.