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  1. Puking Anti-freeze

    911 Problems Forum
    I have a 2001 Silverado LB7 that doesn't want to keep the anti-freeze down. For some reason when I top it off (because that annoying light will stay on) it will hold it for a little while (usually no more than 5 miles) and then pukes some of it out causing the low coolant light to come back on...