Skip the auto shop - Our mechanics make house calls

Q: A hole in number 3 cylinder?

asked by on

I am looking to purchase a van but was told the motor has a "hole in number 3 cylinder" and that it is a "relatively easy" fix. Having no real knowledge of these things I would really like what exactly is the problem and how much money/work would go into fixing this issue. Any and all information/ advice you could give me would be great!

My car has 199000 miles.
My car has an automatic transmission.

Having a hole in a piston is not an easy fix. The heads would need to be removed and the oil pan removed and then finally the piston removed and replaced. This is only part of the repairs needed. You will need to see if the piston parts damaged the cylinder walls or other engine parts. Once this is done, then you will need to find the reason for the piston damage. This damage happened due to that cylinder running too hot and lean. This can be from injection system problems like incorrect timing or faulty injectors. You may want to try and price a complete used engine and have an engine swap. This could cost an excess of $5000 as an estimate, and it may take some effort before an engine can be found, so take those into consideration.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: My horn started going off for no reason then when I was driving yesterday my car stop going and I had to pull over.

When a horn goes off like this, it is usually because something in the steering column has come loose making an electrical connection for the horn. This will require the disassembly of the horn pad to investigate. Often this will...

Q: Engine making weird noises.

Seeking a mechanics advice when car issues come up is always a good idea. Especially when it comes to engine noises. Since I don't know what kind of noise you are hearing, I will try to explain what is important...

Q: Car in "limp-mode" - 2004 Mercedes-Benz Sprinter 2500

The boost pressure, and the intake charge temperature sensor in the turbo boost circuit are thought to be the most common origins of "limp mode" problems. The connectors on these 2 sensors become slightly corroded with time, miles and weather...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.