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 22 owner problems that mention it.

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

Showing the latest 10, see more problems here

Oil leak, head gasket

Oil leaking from head gasket in the right corner ( looking from forward) just near by thermostat. Cylinder head renovated, new head gasket installed, installation according the Peugeot rules ( order...

2013 Peugeot 208 1.2 VTI 82 hp
Posted: Apr 30, 2023
Idles high after about 18 minutes from a cold start

Idles high after about 18 minutes from a cold start when thermostat reaches 80. No error codes but lambda reading high failing emissions. Subtle taping sound from driver side close to when rev will g...

2004 Peugeot 307 1.6v
Posted: Mar 15, 2023
I get a smell (oil?) when I first start the car and it goes away after a while.

I have tried to check the oil level but the dipstick, even after wiping it before testing level always comes out way above the correct level? The car is running as normal.

2014 Vauxhall Astra 1.6 automatic
Posted: Sep 24, 2022
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
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