You 100% need the auto de compressor on those 4t motors. They were a absolute pig of a starting system when they were brand new, age will not have made them better. If anything I would be modifying the decomp system to open the valve a little earlier if possible.
Good luck.
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Back on a gassy! 2018 EC300! 🤘
Txt 280 07 to make me feel like a gumby again
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