C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

vacuum leaks

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Old Nov 12, 2003 | 04:12 PM
  #1  
1990CORVETTE's Avatar
1990CORVETTE
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Default vacuum leaks

Guys is there a easy way to check to see if I have a vacuum leak? I have a gas odor when I stop..... Meaning running rich,, right????? I have visually checked the vacuum lines, I dont see them broken or cracked at all. Any ideas
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Old Nov 12, 2003 | 04:26 PM
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65Z01
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Default Re: vacuum leaks (1990CORVETTE)

For a fuel odor check carefully around your fuel lines, rail, etc.

You can get a vacuum gauge at Sears or AutoZone along with some T's to check manifold vacuum at idle. These gauges come with full instructions.

If the odor is comming from the tank filler due to excessive pressure buildup, I suspect a problem with the purge canister controls.
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Old Nov 12, 2003 | 06:45 PM
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Default Re: vacuum leaks (65Z01)

Check the cannister solenoid to be sure it isn't purging at idle. That will fatten up the mixture.
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Old Nov 12, 2003 | 06:54 PM
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Default Re: vacuum leaks (ittlfly)

Listen I am just learning this car...... How do I do that....
Thanks for the help...... I knew if I asked on this forum, someone would help...... not bad 2 responses out out 12 views
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