This is a custom 57 Chevy with a complete C5 Corvette Drive train LS1with SANDEN 508 compressor Vintage air System

2003 CHEVROLET CORVETTE
3.5L • MANUAL
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PERKSTER
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  • 1 POST
I have evacuated & charged Twice & next day empty; I Pressurized with air to 100 pounds sat overnight & still sitting at a 100 pounds. Each time I charged left sit then evacuated for 1 hr. more. Pulled charge in with no problem checked with soapy water could not find any leaks numbers good next morning empty. I read pros & cons on using air & I plan on a good vacuum but I'm TIRED of wasting money on Freon. This was a ten year build and I'm just not comfortable Bringing it to someone. ANY HELP Would BE REALLY APPRECIATED
Thanks Ron
Nov 1, 2026 at 12:20 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,676 POSTS
Hi Ron,

I would use a leak detector and not soapy water, it misses too many leaks, please go over this video to help you. Please check the evaporator core drain as well, this is a common miss when looking for leaks.

https://www.youtube.com/watch?v=yrhWKlQEPWw

Please upload a short video of any problems you might find, here is a leak detector on amazon for you, $30.00

https://link.amazon/B09XpsjQx


Nov 2, 2026 at 7:58 AM
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