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Mod | | | Forums66 Topics128,049 Posts1,055,653 Members48,426 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#61351 06/06/2006 1:45 AM | Joined: Aug 2005 Posts: 183 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2005 Posts: 183 | I did a tune-up on my truck today and everything went pretty-good. We got to the vaccuum test but there was no vaccuum suction from the carb. I asked my dad what to do and he suggested I use q-tips to clean the opening and a copper wire to remove the blockage. I did that and still no vaccuum. So, now what do I do? Should I use the compressor and blow it out or do I need a new carb?
I'm still shooting for passing Aircare (emmission testing) in 2 weeks. How does no vaccuum affect the engine? I don't really understand how it works. The engine runs great but when we reduced the rpm to 475 in the manual it was not too happy so we put it back to 600 for now. | | |
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