Q: My sl600 V12 has 161,000 miles. Do I need to replace the ignition wires?

asked by on March 10, 2017

Should I replace the ignition (spark plug) wires when I do my next spark plug change? It is running REALLY rough.

My car has 161000 miles.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Cooling fan not shutting off.
There are many vehicles today where it is normal for the cooling fan to run for a few minutes after the engine has been turned off. It is especially long running and will be more noticeable on really hot days...
Car will go in gear but won't move forward or back
Hello there, thanks for writing in. A few different faults can cause your 2002 Kia Optima to not go forward or back. The most common would be low transmission fluid (https://www.yourmechanic.com/article/how-to-check-and-add-fluid-to-an-automatic-transmission), transmission shift linkage faulty, transmission oil pump, or a...
Catalytic converter deleted and replaced with a resonator legal in wv
It is not legal in any State to remove emissions on any vehicle since it is a Federal Law to not alter the emissions of a vehicle. You would need to put the catalyst back to original or the vehicle...
I changed the differential oil to Amsoil Severe Gear 75W-90 Synthetic(open differential). Will synthetic gear oil cause damage.
Synthetic oils generally offer better protection than conventional oils. They stay cleaner longer and withstand higher temperatures better than conventional fluids do. A good rule of thumb to go by whether using conventional or synthetic fluids, so long as the...
Why would my radio and speedometer stop working on my 2004 Chevrolet Malibu
Hello. If both of these issues started occurring at the same time it is because there is an issue with voltage in the system. Most of the time on this vehicle it is caused by either a low battery, a...
During ignition Taurus gagged for air, then backfired w/ smoke. Now engine light stays on & runs rough(timing off) 2005 Ford Taurus SE
Hello - the first task is to check for the problem codes which are setting the Check Engine light. This may be helpful in identifying the initial problem as well as the current problem(s). Usually, backfiring (https://www.yourmechanic.com/question/car-backfiring-and-spitting) in the intake...
Why does my engine choke at low rpm?
This may be caused by a number of things such as a bad fuel pump relay or potentially a faulty ignition coil. Ignition coils (https://www.yourmechanic.com/services/ignition-coil-replacement) are coated with a varnish-like insulation that becomes brittle over time after being stretched then...
Should I replace my head gasket or just buy a new car?
Unfortunately, this is a decision you would need to make on your own. As you know, a blown head gasket can be very expensive to fix no matter the vehicle. This is not specific to a Subaru necessarily. As you...
I have a 2002 Dodge ram 1500 sport and tried to install aftermarket radio and it did not work I put the old one back in and it's n
Check fuse number 2 and 51 and 18, 22 and 28 to see if all are good. If still not working then seek professional mechanic like one from YourMechanic to do further diagnosis.

Related articles

How Often Do Spark Plug Wires Need to Be Changed?
Spark plugs provide the electricity necessary for combustion to happen by igniting atomized fuel in an engine's cylinders. However, they need a...
How Long Does a Top Dead Center (TDC) Sensor Last?
The The top dead center (TDC) sensor is the point from which the firing order is determined and the ignition system measurements are taken. The measurements are normally defined as before top dead center and after top dead center. The...
How to Gap a Spark Plug
The The spark plug (https://www.yourmechanic.com/article/what-does-a-spark-plug-do) is used to ignite the air/fuel mixture inside the engine. The spark plug (https://www.yourmechanic.com/article/how-to-buy-good-quality-spark-plugs) must be in good condition and must be properly gapped for proper engine performance. spark plug...