Skip the auto shop - Our mechanics make house calls

Q: washed #8 cylinder

asked by on

How much would it cost to get a washed #8 cylinder to be fixed or replaced

My car has 180000 miles.
My car has an automatic transmission.

A: A washed cylinder indicates there has been ...

A washed cylinder indicates there has been a large amount of unburned fuel introduced into the cylinder. This usually is a result of a no spark condition which will not ignite the fuel in that cylinder. If this is indeed an accurate assessment of your condition, the first thing that needs to happen is diagnosing why there isn't any spark and repairing it.

Addressing the washed cylinder is actually quite simple. A washed cylinder creates low compression in that cylinder. Just squirt some oil into the cylinder and it will help the rings seal. Keep in mind not to squirt in so much that the cylinder will hydro lock. It does take a lot of oil to hydro lock it a cylinder, so be sure to squirt plenty in. Once the cylinder begins to fire, expect to see a lot of smoke out the tail pipe. So be sure to start it outside and away from anything or anyone it will disturb. Keep it running at a high idle until the smoke clears. When the smoke begins to subside, go for a test drive.

Knowing how much this will be greatly depends on why the cylinder is washed. In other words, why it doesn't have spark. This will require a mechanic to diagnose the issue.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Screeching metal sound

The power steering fluid you keep adding has to be going somewhere and it most likely leaking from one or more places. Typically the power steering pump, high pressure line and power rack and pinion are common failure items. Have...

Q: Car runs hot

On some of these engines, the idler, or tensioner pulley, tends to go bad and throws the belt. However, it could be that your belt just broke from age and wear, or another problem caused the belt to break or...

Q: No crank at all, changed the starter & crankshaft position sensor still nothing.

Changing out parts for the no start may lead to replacing the correct part, but it may take a few parts and money. I suggest having a qualified mechanic come and diagnose the no start by checking fuel pressures or...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...