Spark Plug Tubes Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront

Spark Plug Tubes Replacement Service

What is the Spark Plug Tubes all about?

Some vehicles are equipped with spark plugs that enter the cylinder through the valve cover. When the spark plug is mounted this way, it needs to be sealed against the oil from the valve cover contaminating it. A spark plug tube is threaded into the cylinder head and a seal prevents oil under the valve cover from accessing the spark plug. The spark plug tube is not disturbed easily, though the seal can deteriorate and begin to leak. If oil from the valve cover enters the spark plug tube, it will cause the spark plug to misfire, contaminate the spark plug boot from the ignition coil, and rob the engine of power.

Keep in mind:

  • Oil is as much a problem for spark plugs as extreme temperatures and aging.
  • Spark plug tubes should be replaced any time valve cover or cylinder head repairs are performed.

Our recommendation:

There is no recommended schedule to replace your spark plug tubes, though it is recommended to replace them whenever valve cover or cylinder head work is performed. If you have oil in your spark plug tubes or detect related symptoms, have one of our expert mechanics diagnose and replace the spark plug tubes if required.

What common symptoms indicate you may need to replace the Spark Plug Tubes?

  • Engine misfire or the engine won’t start
  • Oil surrounding the spark plugs in the tubes
  • Check Engine light is on

How important is this service?

The spark plug tubes are quite important for proper engine operation. Your safety isn’t going to be compromised unless your engine stalls in traffic, though a misfire can be annoying. Have the spark plug tubes replaced as soon as you are able to.

Fast and easy Spark Plug Tubes Replacement service at your home or office.

Recent articles & questions

A Buyer’s Guide to the 2012 Ford F-350
With With Ford’s stiffest chassis to date, the 2012 F-350 is one of the most reliable heavy-duty pickup trucks on the market today. With the quiet cabin and plush ride, though, you’ll feel like you’re driving in the comfort of...
How to Advertise Your Used Car
It’s It’s exciting to buy a new car (, but when you have a vehicle that you need to get rid of before you can complete your purchase, it makes it more stressful and complicated. You could: Gift the car...
P0477 OBD-II Trouble Code: Exhaust Pressure Control Valve Low
P0477 code means that the PCM has detected an abnormally low voltage reading often due to the exhaust back pressure control valve circuit.

What does the Slip indicator light on the dash mean?

Your Altima has a traction control system that’s responsible for providing assistance during certain types of driving. The Slip indicator light should blink at certain times. If the vehicle stability control system is operating (actively assisting with handling), you’ll see...

Temperature gauge on dashboard

If by replacing the "temperature valve" you are referring to the thermostat (which does in fact act as a valve in a way), then you might have an electrical issue. Assuming with the repairs you have done, that the cooling...

Sometimes my car hesitates after a stop when trying to accelerate. The check engine light comes on

Hello Robbin, There are a number of things that may cause the car to hesitate ( when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 ·