Vacuum leak or....?
I got my 1972 Impala to crank, whenever I
take my foot off of the gas pedal it turns off
immediately, I also her an air type of noise
coming from the driver side of the car
when I give it gas. I don't know what it is!?
As long as my foot is on the gas pedal it
stays on! I replaced the fuel filter, pump
and did a reduiled on the carburetor
check the vacuum hoses and the big one that does to the power booster/brakes top left drivers side..
That "air type of noise" is almost certainly a vacuum leak. Sometimes if feel around a hose you'll hear the sound of sucking air change.
The thing is, the car doesn't stay on unless my foot is on the gas so how can I check it?
That is when you need someone else to help you.
Or put a brick on the gas pedal...
If you have power brakes disconnect the hose from the power booster and connect a vacuum gauge to the hose. Put the gauge on the windshield facing inwards and you can read it from inside. Vacuum gauge should read between 18 and 22 lbs.
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