What would be the first thing a mechanic would check if a motor was running rough?

Asked by Nov 10, 2014 at 06:53 PM about the 2007 Dodge Caravan

Question type: Maintenance & Repair

My van was running rough, and the dealership where I purchased the vehicle took it to
his mechanic to have it repaired. He promised me it was taken care of, but when I
drove it after-ward it was still running rough. I took it to my mechanic and he said that
there were carbon marks on the spark plugs that might have been causing the problem
and changed the plugs and wires. I am just wondering if this would be the first thing
that a mechanic would check when looking at a engine problem like this.

1 Answer

1,730

The first thing is to check the oil then the fuses then the wires spark plugs injectors sensors etc.

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