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Thread: 1979 Volvo 264 2.66 liter V6 idle problem
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Old 08-04-2010, 08:06 PM
scholman scholman is offline
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WW2Dude,

I think that is a pressure regulator. Vacuum allows fuel to pass if it fails the engine will not start.

I think you need to clean the throttle plate with some spray cleaner. Also check the hose from the air cleaner to the mass air flow sensor. And the hose after the MAF sensor. If these are loose the engine can not regulate the amount of fuel needed to run correctly.

Happy Hunting

Scholman(retired)
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