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International Automotive Technicians Network
Re: Buick low side service port
Posted to HVAC Forum on 2/28/2018

Yes this is true. You can put the smaller filter and I use to do it all the time. I don't remember if it was an actual tsb or just a emerging issues topic but gm put the word out to not use the short filters on vehicles after a certain year. I was ordered by m... Login to read more.