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My compressor will only pump up to 50 lbs of presure no matter how long it runs. What is wrong. The guy I bought it from said it would pump 80 lbs but now it will not even do that. It should pump up to 150 lbs. What do I have to check or replace to fix it.

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Check for air leaks of course. I presume it is not too old so the piston should not be worn out.   It might be a defective valve on the air intake. If under warranty- take it back, it should easily do 80 lbs.

Posted on May 17, 2009

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