0
carbon is formed in the spark area. improper ingnition also is an indication of a bad spark plug.
Lack of power or diminished power and a miss that occurs quickly are signs of a bad plug or wire/electrical problem. The best way to check for bad spark plug wires is very easy. If you are handy with a voltmeter you can check the amount of resistance in the wire. If you are not wait till night time open the hood start the engine and look for sparks around the wires. I had a problem like this that drove me crazy as it would only occur once in a while. Visual inspections showed me nothing. Started it up one night looked under the hood and seen #3 wire was arcing through the boot on the bottom side of the plug.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What causes spark plugs to stop firing?
No spark from coil, bad plug wires, or bad plugs.
Will bad spark plugs and plug wires make your car vibrate?
Yes, bad spark pugs or plug wires can cause the engine cylinder to misfire which will cause the engine to vibrate.
Can spark plug wires be bad even if they look fine?
YES.
Will bad spark plug wires affect gear shifting in automatic transmission?
Bad spark plug wires affect many areas of your vehicle. However, gear shifting in an automatic transmission is not one of them.
What causes a yellow spark at the plug of a Chevy 350 you have power to the coil and the ignition control module It has a crisp blue spark from the plug wire but not at the plug?
poor spark plug gap bad wires or weak coil or bad spark plugs
Your 1996 Mazda 626 has no spark at the cylinders?
Your plugs are bad, you coil is out or you have bad plug wires. If all spark plug wires are not firing then it is the coil or a fuse in the fuse box labeled ign hope this helps B
What causes no fire to spark plugs?
bad spark plug wires, low battery, broken rotor in the distributor
Engine will turn over but won't start and no spark?
Bad distributor or rotor or bad spark plug wires would be my first culprits.
What causes your car to skip sometimes then not skip?
Could be bad spark plug wires.
Causes of cylinder misfire?
Bad spark plugs? Bad plug wires? Bad valve? Bad piston? Bad coil? (new Fords haeone for each cylinder) Bad spark plugs? Bad plug wires? Bad valve? Bad piston? Bad coil? (new Fords haeone for each cylinder)
Whats wrong with your 1990 Chevy lumina if the spark plugs are not firing?
you are not getting spark. this could be from a bad alternator, bad spark plugs, bad spark plug wires, or bad engine coils. The spark plugs and wires are the cheapest so try putting in new ones of those first.
Have a idle problem with a 98 windstar 3.8idles good when cold idles rough and stalls when warm works fine when driving?
The most common reason for a vehicle to run rough when it is cold is bad spark plugs or bad spark plug wires. Change the spark plugs and spark plug wires.
