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vacume noise

farmtruck

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farmtruck Enthusiast

farmtruck

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I had my intake gasket replaced a few weeks ago and when I got it back there was a noise that sounded like a vacume leak in the cab. I looked for leaks all over with no luck. You can hear towards the rear of the engine but barely. when you turn the engine off it sounds like the leak is bleeding down. Any help would be appreciated.

citydriver Enthusiast

citydriver

Posted
Posted
spray some carb cleaner at suspected leak areas and listen for a change in idle speed.

Check the vacuum line to the power brake booster,the valve may have cracked when the line was moved to the side

99-2door Senior Enthusiast

99-2door

Posted
Posted
spray some carb cleaner at suspected leak areas and listen for a change in idle speed.

Check the vacuum line to the power brake booster,the valve may have cracked when the line was moved to the side

my thoughts exactly. Since you hear it bleed off, it just about has to be the booster or the hose/fitting.

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