What would make the 3

Tiny
ANONYMOUS
  • MEMBER
  • 1990 CHEVROLET LUMINA
  • 105,000 MILES
What would make the 3.1 v6 engine be low on vacum
Saturday, March 2nd, 2013 AT 8:10 PM

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Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Vacuum leak, timing retarded or internal engine issue

Roy
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Saturday, March 2nd, 2013 AT 8:11 PM
Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
How is the car performing? Does it idle rough? Stall? Do your brakes feel normal or is the pedal harder than usual? This could indicate a vacuum leak in the vacuum line going to the brake booster.
Besure to check the PCV hose for cracks or leaks (follow it from one end to the other as well as any vacuum line which attaches to the same vacuum source as the PCV).
There could be other sources of a vacuum leak as well so check all vacuum lines (large and small).
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Saturday, March 2nd, 2013 AT 8:36 PM

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