Mitsubishi Mirage G4 Crankcase Vent Filter Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(13)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(13)

Crankcase Vent Filter Replacement Service

How much does a Crankcase Vent Filter Replacement cost?

On average, the cost for a Mitsubishi Mirage G4 Crankcase Vent Filter Replacement is $189 with $94 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2018 Mitsubishi Mirage G4L3-1.2LService typeCrankcase Vent Filter ReplacementEstimate$306.71Shop/Dealer Price$364.64 - $515.93
2017 Mitsubishi Mirage G4L3-1.2LService typeCrankcase Vent Filter ReplacementEstimate$282.87Shop/Dealer Price$339.86 - $488.28
Show example Mitsubishi Mirage G4 Crankcase Vent Filter Replacement prices

What is the Crankcase Vent Filter all about?

The most common application for the crankcase vent filter is on high performance engines such as race cars, though it is widely used on older models of vehicles as well. Inside the engine, small amounts of combustion gases push by the piston in the cylinder and enter the crankcase, or the bottom end of the engine. These gases create a positive pressure inside the crankcase, which needs ventilation. Positive crankcase pressure robs the engine of power as the pistons have to fight against that pressure when performing each down stroke.

A breather tube is mounted at the top of the crankcase in the engine block that releases the positive pressure into the environment or into the intake to cleanly burn them before they enter the atmosphere. The breather tube contains a port or elbow at some point along its route where the crankcase vent filter is installed. The crankcase vent filter allows excess pressure to push out into the environment without carrying oil particles or other messy contaminants with the gases. It also prevents any debris or dirt from entering the crankcase if there is a situation where negative pressure occurs, such as engine cooldown. If the crankcase vent filter is plugged, the excess positive pressure inside the crankcase can blow out engine oil seals. If the crankcase vent filter isn’t in place, dirt can enter the crankcase and plug oil galleries or contaminate the oil, which can cause lasting engine damage.

Keep in mind:

  • The crankcase vent filter works contrary to how other filters operate. Its main purpose is to prevent contaminants in the engine from entering the atmosphere, while most other filters prevent contaminants from entering the engine.

How it's done:

  • The crankcase vent filter is verified that it needs to be replaced. The air filter housing is then opened.
  • The defective crankcase vent filter is removed by disconnecting the vent hose and removing the clip.
  • The new crankcase vent filter is installed and secured with a clip. The vent hose is then connected.
  • The air cleaner housing is closed. The crankcase vent filter is then tested for operation.
  • The vehicle is road tested to ensure proper operation of the crankcase vent filter.

Our recommendation:

The crankcase vent filter will eventually become plugged with oil that is carried by the exiting vapor. It should be checked whenever the engine air filter is replaced, and should be replaced at least as often as the spark plugs. If you experience symptoms that may be related to the crankcase vent filter, have one of our expert technicians diagnose and replace the vent filter.

What common symptoms indicate you may need to replace the Crankcase Vent Filter?

  • Oil on the engine
  • Plugged filter causing engine seals to leak
  • Decrease in engine performance

How important is this service?

When the crankcase vent filter is plugged, engine oil will leak when seals are pushed out. If the vent filter is missing or broken, contaminants can enter the crankcase. If the vent filter is not in place, an oily mess can occur under your hood. It is prudent to replace the crankcase vent filter as soon as needed.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mitsubishi mechanics

Real customer reviews from Mitsubishi owners like you.

Excellent Rating

(13)

Rating Summary
13
0
0
0
0
13
0
0
0
0

Benji

22 years of experience
277 reviews
Benji
22 years of experience
Mitsubishi Mirage G4 L3-1.2L - Oil Change - Chandler, Arizona
Very friendly and straight forward

Collins

12 years of experience
496 reviews
Collins
12 years of experience
Mitsubishi Mirage G4 L3-1.2L - Oil Change - Atlanta, Georgia
Great service! Very professional! Great guy! 100% Recommend.

John

20 years of experience
571 reviews
John
20 years of experience
Mitsubishi Mirage G4 L3-1.2L - Brake Pads Replacement (Front) - Orlando, Florida
John was fantastic! He arrived promptly and quickly completed the needed work! He also alerted me to the fact that pep boys had over filled my oil from the last oil change I just had done and got me a wonderful quote to have my belt replaced. I would absolutely use John as my mechanic again!

Breck

20 years of experience
681 reviews
Breck
20 years of experience
Mitsubishi Mirage G4 L3-1.2L - Serpentine/Drive Belt - Houston, Texas
Quick and professional

Excellent Rating

(13)

Rating Summary
13
0
0
0
0
13
0
0
0
0
Number of Mitsubishi Mirage G4 services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mitsubishi MECHANICS
700+
experts on our platform

Recent articles & questions

Top 10 Car Seat Models According to the NHTSA
Preparing Preparing for a new member of your family is a daunting enough task. Between choosing a doctor, buying the necessary supplies, there is always something on your mind. But one of the most important purchases you can make should...
P0242 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit High
P0242 P0242 code definition Turbocharger Boost Sensor B Circuit High What the P0242 code means P0242 is a generic OBD-II code which indicates that the engine control module (ECM) detected the intake boost pressure sensor B input circuit out of...
Why Fuel Pump Replacements Can Be Tricky
Changing the fuel pump can be challenging, as you may first need to remove the fuel tank and other parts in the car to reach the pump.

Engine overheating light on

Hi there. Many components make up your cooling system. If any of these components are not functioning properly, it will cause your vehicle to overheat. If your vehicle is not leaking, any coolant changes are that your radiator fan(s) are...

Power steering issues

Hello. Thank you for writing in. The owner'owner's manual should have more information on the power steering system, although you are correct. It should be electric. With that said, major faults with the system will set diagnostic troubleshooting codes. These...

A warning light came on an says check powertrain

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