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  1. M

    2003 Yukon engine idles too low and dies

    Had no problems except for the engine running a bit rough on my 2003 Yukon XL so I decided to tune her up (123k miles). Bought plugs, wires, PCV valve, air filter, and fuel filter. Changed all but the fuel filter the first day. Took it out and ran her around the neighborhood... holy cow, she was...
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