Jeep J-4700 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

(6,675)

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

(6,675)

Crankcase Vent Filter Replacement Service

How much does a Crankcase Vent Filter Replacement cost?

On average, the cost for a Jeep J-4700 Crankcase Vent Filter Replacement is $101 with $6 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1972 Jeep J-4700L6-4.2LService typeCrankcase Vent Filter ReplacementEstimate$126.97Shop/Dealer Price$139.97 - $156.45
1970 Jeep J-4700V8-5.3LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.98 - $136.48
1970 Jeep J-4700V8-5.7LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.98 - $136.48
1973 Jeep J-4700V8-5.9LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.96 - $136.44
1971 Jeep J-4700L6-4.2LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$120.00 - $136.51
1972 Jeep J-4700V8-5.9LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.98 - $136.48
1973 Jeep J-4700L6-4.2LService typeCrankcase Vent Filter ReplacementEstimate$111.97Shop/Dealer Price$124.85 - $141.24
1972 Jeep J-4700V8-5.0LService typeCrankcase Vent Filter ReplacementEstimate$111.97Shop/Dealer Price$125.22 - $141.90
Show example Jeep J-4700 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 Jeep mechanics

Real customer reviews from Jeep owners like you.

Excellent Rating

(6,675)

Rating Summary
6,332
186
36
24
97
6,332
186
36
24
97

Jesse

17 years of experience
89 reviews
Jesse
17 years of experience
Jeep Compass L4-2.4L - Oil Change - San Antonio, Texas
Great mechanic

James

30 years of experience
904 reviews
James
30 years of experience
Jeep Compass L4-2.4L - Warning Light is on - Orlando, Florida
James was early,very polite and that is awesome. He came prepared asked me question drove the car before looking at it. But the lights didn't come on but he still check out everything! He showed me what he was talking about and answered my many overbearing question. He was great told/ showed me exactly what was wrong and ordered the parts and scheduled the appointment to do the work for me. Now anxiously awaiting James to return to fix the problem so I can drive without worry. Thank you my mechanic for James

Joel

21 years of experience
987 reviews
Joel
21 years of experience
Jeep Grand Cherokee L6-4.0L - Oil Change - Jacksonville, Florida
Joel is very knowledgeable and good at what he does. My wife and I fully trust his expertise and look forward to his visits.

Mack

22 years of experience
114 reviews
Mack
22 years of experience
Jeep Patriot L4-2.0L - Control Arm Assembly Replacement (Rear Upper Right) - Grand Prairie, Texas
Communication was great. Arrived early, and completed the job quickly. Would hire him again.

Excellent Rating

(6,675)

Rating Summary
6,332
186
36
24
97
6,332
186
36
24
97
Number of Jeep services completed
73425+
services done by our mechanics
TOTAL NUMBER OF EXPERT Jeep MECHANICS
1300+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Fuel Filler Neck
Common signs include a fuel smell coming from the car, the Check Engine Light coming on, and fuel leaks.
How to Decide Which Car Is the Right Fit For You
Your Your vehicle selection is daunting. There are so many car brands, vehicle styles, and option packages available that it makes choosing one vehicle very difficult. How do you know which one is right for you? There are a handful...
How to Buy a Personalized License Plate in Missouri
A A personalized license plate is a great way to customize your car. With a personalized plate, you can display a sentiment on the front and back of your car that no one else has. You can cheer on a...

Car making noise when I drive

If the noise is constant, it may be the bearings. If the noise is only when braking, the noise may be brake related. Bearings typically make roaring/howling noises, while brakes typically make squeaking/grinding noises. A test drive and visual inspection...

My car won't start it started fine yesterday but today nothing

My cars coolant temp, goes up a little past the half way point just past the half line when I'm in traffic, it goes 1 or 2 lines past the half way point but cools down to the half way point when speeding up

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