Dodge W300 Oil is leaking into spark plug well Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(8,737)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(8,737)

Oil is leaking into spark plug well Inspection Service

How much does a Oil is leaking into spark plug well Inspection cost?

On average, the cost for a Dodge W300 Oil is leaking into spark plug well Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1979 Dodge W300V8-5.9LService typeOil is leaking into spark plug well InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
1977 Dodge W300L6-3.7LService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1975 Dodge W300V8-5.2LService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1976 Dodge W300V8-5.9LService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
1976 Dodge W300V8-6.6LService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
1976 Dodge W300V8-5.2LService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1976 Dodge W300L6-3.7LService typeOil is leaking into spark plug well InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
1978 Dodge W300V8-5.9LService typeOil is leaking into spark plug well InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Dodge W300 Oil is leaking into spark plug well Inspection prices

Oil leaking into the spark plug wells is an indictor of a fairly serious problem that should be inspected and repaired immediately. It is almost always due to a failing gasket or O-ring but can also be the result of a failing piston or worn valve guides.

Oil making its way into the spark plug wells will drastically affect the engines performance, leading to misfires, increased oil consumption and blue exhaust. In extreme cases, it can even lead to an engine fire. If the vehicle is exhibiting any of these symptoms, the spark plugs should be inspected immediately.

How this system works:

his issue involves two systems, the spark plugs and the engine lubrication system.

The main function of a spark plug is to ignite the fuel/air mixture in the combustion chamber. Electrical energy is transmitted through the spark plug where it jumps the gap and the spark ignites the gasoline and air mixture. Spark plugs also pull heat out of the combustion chamber, working as a heat exchanger, it pulls thermal energy from the combustion chamber and transfers it to the cooling system.

Engine oil is used to lubricate the moving parts of an engine. The constant moving of the engine parts generates heat, as well as wear and tear. Engine oil helps to minimize the friction and dissipates the heat generated by the engine.

The oil pan is where engine oil is stored. A typical oil pan will hold up to 6 quarts of oil. When the engine starts, the oil pump pulls oil from the oil pan through a part called the pickup tube. The oil then moves to the oil filter, which removes dirt and debris before it is sent to the various parts of the engine via spurt holes. Eventually it heads back to the oil pan to start the process over again.

Common reasons for this to happen:

  • Leaking Valve Cover Gaskets: The valve cover is a metal part found on the top of the engine, which seals the engine and helps prevent oil leaks. Between the valve cover and the engine are gaskets that tend to fail over time. Due to the high temperature of the engine the gaskets can get brittle, and start to leak. It is possible for the oil to leak into the spark plug wells. Leaking valve cover gaskets need to be repaired as quickly as possible, failing to do so can lead to further damage to the engine.

  • Failing O-Ring Seals: There are O-Ring seals at the bottom of the spark plug wells and if a seal starts to fail, oil can leak past these seals and into the spark plug well. Again, this issue should be repaired as soon as possible and the spark plugs should be changed as well.

  • Failing Piston Compression Rings: The pistons in a car’s engine have compression rings at the top of the piston and the bottom. These rings are set in grooves in the piston and help scrape excess oil from the cylinder walls and prevent oil from getting into the combustion chamber. If these rings fail, oil can make its way into the spark plugs wells. Other symptoms of failing compression rings include increased exhaust that is blue and smells oily.

  • Failing Piston: A piston that is running too hot can develop a hole or crack. The most common symptoms of a failing piston include rattle and knocking noises while the car is running, excessive oil burning as well as a loss of power and engine misfiring. It can also lead to oil in the spark plug wells. This is an extremely serious condition that needs to be repaired as soon as possible.

  • Worn Valve Guides: Valve guides help to regulate air intake by keeping the valves in place while the engine is running. Over time, valve guides can become extremely worn and will require replacement. Blue smoke and oil or ash in the spark plug wells is a common symptom of failing valve guides. Worn valve guides can lead to more serious engine problems and should be repaired as soon as possible.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the Oil in Spark Plug Well issue, ​and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

A mechanic will check your valve cover gaskets, O-Ring seals, pistons and other important components. The mechanic may need to crank the car and test drive it to pinpoint the cause of the leak and produce an accurate diagnosis.

How important is this service?

Oil in a spark plug well is a very serious problem that should be repaired as soon as possible. It can do extensive damage to the engine, such as broken or warped pistons and valves. Eventually, if not repaired, the head gasket can result in the fatal destruction of the engine. There is also the potential for an engine fire if the spark plugs ignite the oil.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Dodge mechanics

Real customer reviews from Dodge owners like you.

Excellent Rating

(8,737)

Rating Summary
8,206
290
51
42
148
8,206
290
51
42
148

Diego

21 years of experience
564 reviews
Diego
21 years of experience
Dodge Ram 1500 V8-4.7L - Oil is leaking into spark plug well - Peoria, Arizona
Diego was very personable and seemed to have good knowledge of auto mechanics. Unfortunately he was unable to repair my issue but it is more of a problem that needs to be taken care of in a shop.

Tung

16 years of experience
310 reviews
Tung
16 years of experience
Dodge Charger V6-3.5L - Oil is leaking into spark plug well - Atlanta, Georgia
he was on time. Found the issue and gave me a few pointers on some other things as well

Anthony

33 years of experience
79 reviews
Anthony
33 years of experience
Dodge Charger V6-3.5L - Oil is leaking into spark plug well - Atlanta, Georgia
All though I made an appointment on a holiday Anthony called me the night before to make sure we were STILL on.. He showed up before time and finished on time. He also showed me the parts he replaced and left me what was left over... I will be booking Anthony for my up coming brake job

Nickolas

6 years of experience
54 reviews
Nickolas
6 years of experience
Dodge Dakota V6-3.9L - Alternator - Shawnee Mission, Kansas
Nick was great friendly, courteous, knowledgeable and professional. He completed the job very quickly, and even came back to make sure everything was okay when I had a few more questions, he definitely went above and beyond

Excellent Rating

(8,737)

Rating Summary
8,206
290
51
42
148
8,206
290
51
42
148
Number of Dodge services completed
96107+
services done by our mechanics
TOTAL NUMBER OF EXPERT Dodge MECHANICS
1400+
experts on our platform

Recent articles & questions

2012 Chevrolet Impala vs. 2012 Toyota Camry: Which One Should I Buy?
In the battle for the family vehicle, the 4-door sedan is a strong contender that just continues to be a viable option even with the rise of the crossover SUV and the popularity of passenger vans. These sedans offer a...
How to Use a Technical Service Bulletin
To ensure your safety and the safety of those on the road around you, stay up-to-date on current or potential problems with your vehicle. One way to stay informed is through the use of technical service bulletins (TSBs), which are...
3 Ways to Increase Car Battery Life
Car battery life is 2 to 6 years. Extend the life of your car battery with regular maintenance and turning off the headlights when the engine is off.

Liftgate opens then bounces up and down then closes back. What causes this?

The rear door has built in sensors and power motors that work together to close the door automatically when you push the close button. If there is a shorted button then this could cause it to close again as soon...

My car is running rough after changing the spark plugs and wires.

Hey there, the first thing to check are any trouble codes (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau), even though this is pre-OBD II (Ford MCU or EEC-Iv engine management systems), there are inexpensive code readers for these engines, or your local parts store can read...

Gear Shuffling Problem in Vauxhall Vectra 52 Registration

Hi there. We don't see a lot of Vauxhall Vectra's here in the United States, so unfortunately, we're not able to suggest a possible solution or cause of this problem you're experiencing. You should consult with a professional mechanic in...

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 · hi@yourmechanic.com