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International Automotive Technicians Network
Re: A/C system surge/pulsation noise on engagement
Posted to HVAC Forum on 9/24/2026

That was one of my first thoughts too when it came in originally, that maybe they put too much oil in it. When we did the compressor, I drained all the oil out of it, flushed the condenser and evap, replaced the drier and orifice line and added the correct amo... Login to read more.