Question about 1987 Chevrolet S-10 Pickup

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Hello got 2.5 l 4 cyl s 10 chevy and is runs very rough like its on 3 cylinders what may be the issue?

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Start with plug and plug wires, This is the most common problem with a missfire. Can check by pulling plug wire off the plug with a pair of plyers and see if it is fireing, If it is fireing of it will cause the motor to boug down when you remove, then replace and will start back running the way it was , Do this on all 4 cly's and see witch one is your problem and replace. Good luck to ya.

Posted on Mar 30, 2011

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Posted on Jan 02, 2017

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