I have a slight rev up to 1400rpm when I come to a stop, it's only momentarily and the revs immediately fall back to idle, it's erratic and doesn't happen all the time, it's probably linked to the anti-stall feature because it's a CVT auto. I also sometimes feel the brake pedal feel like it's releasing, like the booster suddenly works a little bit better, that may just be due to the slight rev up or possibly the PCV acting up. That being said every time the rev up happens I can pump the brake pedal as much as I want and it doesn't affect the revs at all, pumping the brakes doesn't ever affect the revs as it may do if the booster is faulty.

The service manual says to pinch the PCV pipe just below the valve cover on the front of the engine and you are supposed to hear a click but I can't hear anything.

 

No replies, does the PCV not fail very often?

 

I haven’t seen much about PCV failures. It’s a check valve, the crank case side should be high pressure during idle, and atmosphere when the engine is off. The intake side should be vacuum while idle and atmosphere when the engine is off.

the point of clamping the hose is to cut off the vacuum and see if check valve closes but the sound will not be that loud I think. If you have a large turkey basted syringe or something you can try pushing air in and out of the PCV hose while the car is off. From the intake side you should have little resistance ‘sucking’ air, but not be able to push air in.

not sure dude, good luck sorting it out though

 

Thanks man, that's some good info.