1991 GMC SUBURBAN INTAKE MANIFOLD

  • Tiny
  • taco56
  • 1991 GMC Suburban

Engine Performance problem
1991 GMC Suburban V8 Two Wheel Drive Automatic 223450 miles

How can I tell if the intake manifold gasket is leaking?

Monday, August 17th, 2009 AT 8:03 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Spray it with soapy water on the intake manifold mating surface if it bubbles up and the idle is steady the leak is right there or use propane also the vacuum gauge method

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Tuesday, August 18th, 2009 AT 4:40 AM

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