Skip the auto shop - Our mechanics make house calls

Q: Spark plug replacement

asked by on

I was wondering what size wrench do I need for the spark plugs on my engine and what are some clear signs that show wires need to be changed? Because my wires look almost immaculate but idk if they're moving power like they're supposed to.

My car has 222800 miles.
My car has an automatic transmission.

A: The socket size is 5/8 for the spark plug r...

The socket size is 5/8 for the spark plug replacement. The spark plug wires should be inspected for dry cracks in the outer cover and also look for small white or black spots on the exterior of the wire indicating they are leaking high voltage and replace the plug wires if any problems are found. Since you have high mileage the plugs and wires should be replaced as a set. A mechanic like one from YourMechanic can come and perform the work for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Get a quote

What others are asking

Q: Car is making unusual sounds - 2004 Chevrolet Impala

Hello, the engine position is such that all the rotating components are located on the passenger side of vehicle area. There is a coolant pump, alternator, pulleys, and a power steering pump that require a belt to rotate them. The...

Q: Spark plug wires get heated and check light comes on

If your ignition spark plug cables are burning through then it is caused by not being in contact with the spark plugs and the spark plugs have high resistance. Replace the spark plugs and spark plug wires.

Q: Headlamp relay?

Hello, Yes, your car does have a headlamp relay. It should be located in a black fuse box under the hood near the battery and will have a diagram on the lid indicating what the box contains (i.e. various fuses...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...