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The firing order for your 1990 Toyota 4 Runner is 1,2,3,4,5,6. Looking at the engine from the front, #1,3 an 5 are on the left, with #1 at the front and #5 at the rear. #2,4, and 6 are on the right with #2 up front and #6 at the rear.

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19y ago

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