1999 Pontiac Grand Am GT "vacuum cleaner whistling noise" Questions

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...vacuum leak, the leak is in between the filter and intake. because when you put in a filter, it causes air resistance and the air is pulling in from a small area (causing a whistling) ONLY use carb ...

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Question about Pontiac Grand Am

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...to idle very roughly. Never had this problem before only began to hear it today check all vacuum hoses,sounds like a leak, try spraying carb cleaner near noise,if engine rpms go up you found the ...

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...whistling noise in intake area when started and increases with acceleration Sounds like a vacuume leak, use some carb cleaner in a spray can and gently spray the engine. When you find the leak the ...

Question about Pontiac Grand Am

1 Answer

...cracked allowing vacuum to escape,, start the motor, and spray short bursts of carb cleaner around the intake and vacuum hoses,, if the rpm's speed up,, thats where the vacuum leak is going to

...whistling noise? why all of a sudden my suv seems like it runs harder and now my ac has started to whistle and it has started to heat up.... i am a gal and dont want to be taken to the cleaners for ...

...cleaner around engine for vacuum leaks but didn't hear any change in idle, so confused. sounds like a vacuum leak. spray w-d 40 around vacuum hoses to find out. intake manifold might be leaking or ...

...VACUUM LEAKS. MOST OF THE TIME YOU WILL HEAR A WHISTLING NOISE OR A SUCKING SOUND. YOU CAN GET A CAN OF SPRAY CARB CLEANER AND SPRAY AROUND ENGINE,IF ENGINE CHANGES RPM'S THAT AREA IS OF CONCERN. ...

...available with the engine cold try spraying carb cleaner around the intake & any suspect vacuum hoses with engine idling look for a change in idle speed or elimination of noise. Hope this helps you ...

Question about Pontiac Grand Am

1 Answer

...vacuum leak, any rubber hose or even the intake boot could have a tear or crack in it. lightly spray carb cleaner over isolated places, if you hit the place where it is leaking, the engine will ...

the valve. You can try cleaning it with carb cleaner if carbon buildup is preventing it from seating. If not, you may very well have a vacuum leak somewhere else around the carb if its still squealing

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