Can a new spark plug wire be bad?
The no is because if you decide to change your spark plug wires in good condition to improve performance, you’ll be disappointed. And yes, because since a bad spark plug wire can transmit insufficient spark to ignite the air/fuel mixture, replacing them with new high-end wires will improve your engine performance.
What happens when you replace spark plugs and wires?
Thanks! When you replaced the spark plug wires, are you sure you got then in the right order? It is also possible that one or more of the new wires or spark plugs is defective. When you perform a maintenance function and the car runs worse after, you have to review the maintenance function first.
Why are new plugs and wires but still misfires?
I pulled it over and got it towed to my house and my code reader says a p0300…which is a random misfire code. So I figured i just need a tune up so I went and bought new plugs and wires and replaced the old ones. And to my surprise…still a noisy shakey rough erratic start and idle.
Why are spark plugs failing on my P0300?
Maybe the connector came loose or got water in it or the sensor itself is bad. When you get a P0300 out of the blue like that, it is not likely that several spark plugs failed at the same time.
Thanks! When you replaced the spark plug wires, are you sure you got then in the right order? It is also possible that one or more of the new wires or spark plugs is defective. When you perform a maintenance function and the car runs worse after, you have to review the maintenance function first.
Can a bad spark plug cause an engine surge?
This is a common sign of a bad spark plug wire in a car. An engine surge happens when there is a short spurt of sufficient electrical flow. Engine surging occurs when there are cracks or broken wires outside the insulation. Without an adequate flow of electrical power, the engine won’t pick.
I pulled it over and got it towed to my house and my code reader says a p0300…which is a random misfire code. So I figured i just need a tune up so I went and bought new plugs and wires and replaced the old ones. And to my surprise…still a noisy shakey rough erratic start and idle.
How can I tell if my spark plug wire is bad?
In most vehicles, a bad spark plug wire will be indicated by the ‘ check the engine light ‘ on the vehicle’s dashboard. Be thoughtful enough not to ignore that light. Occasional checking of the ignition cables can show wearing out cables, meaning it is time you got them changed.