Monday, December 12, 2011

Change spark plugs & Wires or just plugs?

How do I know if I need to do both? I am doing this on my own. I have looked it up online on how to do it %26amp; It says nearly anyone can do it themselves. Am I able to just do the plugs? I have an 03 dodge neon. The check engine light is on %26amp; I have had the diagnosic test run on it and the only code that comes up is the gas cap which I have replaced but the light still comes on. My car is idoling not so good %26amp; The gas mileage is not as good as it was before. The man at advanced auto parts said he thinks I need a tune up. How do I know that's what the problem is? Can I just change spark plugs and not both the plugs %26amp; Wires? Thanks!Change spark plugs %26amp; Wires or just plugs?
It's a fact that cheap non platinum or iridium spark plugs will be used-up after 30,000 miles of driving. Platinum tipped plugs last no more than 50.000 miles. Iridium plug will last 75 - 100,000 miles. *The trick is to remember to change ignition wires ever 50,000 miles regardless of spark plugs used. The fragile radio resistance carbon inner core cracks and breaks with under-hood heat and age. Electrical resistance goes up which can be verified with an ohms meter. Additionally the outer insulator jacket on the wires leak electrical voltage to ground inside the engine compartment. No way on this green Earth do ignition wires last the life of any car or truck. Mr. Know It All doesn't know everything! If they did last the life of the car why are so many companies selling replacements?



Don't use cheap box store spark plug wires. MSD, Taylor, Morroso and AC-Delco are the best ignition wires you can buy.Change spark plugs %26amp; Wires or just plugs?
Spark plug wires should last the life of the car.

15 years at least.



Perhaps one of the spark plug wires is just loose on the spark plug??
Well if you do it yourself get the tools you need and pick up the repair manual for your car and make the changes, check the owners manual for the intervals of what needs to be changed and make the changes. Read the manual ( repair manual ) and get the understanding on what you want want do. Drop us a line back and let us know how you did or if you have a problem. good luck.
Those companies that say gas cap when they pull the codes don't know what they are talking about. That code means there is not a full seal on the fuel system. (There is more connections to a gas tank then the fill cap) If your code is saying its the fuel problem then it is. You need to check everything going and coming from the gas tank. I had a simple hose come loose on my tank and that was the problem not the cap.
the code for evap leak could be from a leak other than the gas cap, and an evap system not working correctly would effect the fuel mileage. If the only code is evap leak, changing the plugs and wires would not fix an emissions leak. when you need a tune up you would get a code saying misfire. these spark plugs should be changed every 30,000 miles and unless they are damaged 80,000 miles on the spark plug wires.

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