Carb cleaner=check vacuum? - LS1TECH

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Carb cleaner=check vacuum?

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Old 09-28-2011, 12:40 PM   #1
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Default Carb cleaner=check vacuum?

Someone suggested i use carb cleaner to find my vacuum leak? They said rpm's will increase when i sprray near the leak? Im a noob to all this so what im understanding is i spray carb cleaner around my motor while its running? Where should i be spraying it? How much will the motor rev when i find the leak? thanks guys in advanced
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Old 09-28-2011, 02:38 PM   #2
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Only spray it where gaskets are located, then spray all the PCV hoses, brake booster hose....behind the intake give it a good cloud of spray.

Yea, the rpm's should increase a little bit.

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Old 09-28-2011, 08:05 PM   #3
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spray it in a small area, listen for rpms to raise if none move to another small area.
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Old 10-02-2011, 09:05 AM   #4
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What year is your car? I had a vacuum leak that was very hard to find. It ended up being the rubber boot that the pcv goes into. The boot appeared fine on the top but when I pulled the pcv out and held the bottom of it I knew right away the rubber for the boot was fubar.
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