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Model: Cherokee
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The GC 4.0 I bought in December that has the knock, when I start it to move it it jumps to 4000 RPM then back to 2000 RPM, I am going to rebuild engine, my worry, its't that a little high RPM for a cold start? There are no codes.
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frantic29
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Sep 26, 2015 04:30 PM
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