1991 Volvo 740 not blowing

Tiny
VOLVOLOVER
  • MEMBER
  • 1991 VOLVO 740
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 314,000 MILES
When car is idle the ac is great, but when I accelerate it dosent some out the vents until I am off the gas.
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Friday, August 22nd, 2008 AT 11:24 AM

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Tiny
JACK42
  • MEMBER
Check for a leak in the source vacuum line that goes from the hvac control to the engine. Might have a check valve on it that is bad or a small leak in the line
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Friday, August 22nd, 2008 AT 11:50 AM

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