Crankcase Breather

What is a Crankcase Breather?

The Crankcase Breather is part of the car Engine system. We have 5 associated problem symptoms connected to it.

We also have 19 owner problems that mention it.

What problems can be caused by a faulty Crankcase Breather?
19 problems that mention the Crankcase Breather

Showing the latest 10, see more problems here

Camshaft cap oil seal blown out on two occasions.

Now rear seals also blown out. Glueing in not working this time. Car in my garage can’t drive and can’t cure. Any thoughts or help please. I’m just about ready to give it to a breakers.

2003 Land Rover Freelander freelander 1 v6 2.5 auto
Posted: Mar 27, 2022
Air box noise

The engine sounds like a throaty exhaust noise but does not come from the exhaust. I suspect some sort of air induction roar. Trapping down the filter lid improves it but does not eliminate the proble...

2003 Citroen Berlingo Multispace
Posted: Nov 15, 2021
Oil leak issues

Ive been having an oil leak from front left section of engine block. Thought it might have been the cap but replaced that and still prominent. Wondering what else it could be.

2012 Vauxhall Insignia 1.4 petrol tourer
Posted: Aug 16, 2021
Front passenger door not locking/unlocking

Front and rear doors lock stuck in locked position, I renewed both locking mech and back door is now fine but front door still not working, ie stays locked when operated in any way key/fob.. I welcome...

2006 Volkswagen Golf 2.0 tdi Sport
Posted: Jul 23, 2021
Excess oil consuption

Using about a litre every 3/4 weeks any help appreciated to the cause car runs ok no warning lights

2013 Peugeot 2008 1.2
Posted: Jun 11, 2021
The headlamps have stopped working,

Although the side, rear and fog lamps still work, and the main bean can be 'flashed' Could this be a problem with a fuse? If so, which one, ie, how many amps, and where in the fuse box is this located...

2013 Volkswagen Polo 1.2
Posted: Jan 11, 2021
Engine smell from heater

i get a horrible smell like engine fumes coming into the car when i turn on the heater

2006 Ford Galaxy 1.8 tdci
Posted: Nov 6, 2019
Fumes in car

When turning on Heater, Fan, Vents we get what smells like exhaust gas in the car interior. Only way we can stop it is to lower the windows and close all vents. Local garage is baffled.

2009 Peugeot 308 1.5 SE HDI
Posted: Feb 26, 2019
Engine has no power, lots of black smoke

Has 160000km, barely makes it up to 80km, going up hills like 30km. Have ran many injectors cleaners, replaced injectors, took apart intake, egr, exhaust manifold, and turbo. All were normally dirty, ...

1991 Mitsubishi Pajero
Posted: Oct 8, 2017
Car not idling properly

I have an intermittent problem with my car idling properly. At times the revs drop to the point that the car almost cuts out, & sometimes it does. The problem is when the car is either stopped or movi...

2004 Mercedes Benz C Class 1.8 kompressor auto petrol
Posted: Jan 11, 2016
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