alfredmeier9

Mark X PCV Valve Issue

My 2014 Toyota Mark X with a gasoline engine has 142097 km. The check engine light is on, engine power is down, and there's visible smoke during acceleration. Diagnostics suggest a possible crankcase ventilation valve malfunction. Could this be the PCV valve?

A 2014 Toyota Mark X is experiencing reduced engine power, a check engine light, and smoke during acceleration. Diagnostics suggest a crankcase ventilation valve issue, possibly the PCV valve. A similar case involved a cracked valve causing a vacuum leak, leading to the recommendation of a workshop inspection and potential PCV valve replacement.

Did this summary help you solve your problem?

4 comment(s)

I had a similar problem with my Mark X. Your symptoms mirror my experience. Have you checked for unusual hissing sounds or vacuum leaks around the valve? That's where I started.

Thanks. I did a visual inspection, but didn't hear any hissing. Can you tell me where the leak was on your car?

The valve itself was cracked, causing the leak. Given your symptoms and the mileage, the PCV valve is likely defective. I'd advise a workshop inspection. I had to replace mine and it cost around 360€, including labor.

Thanks. Based on that, I'll schedule an appointment with a mechanic to check the crankcase ventilation system. PCV valve replacement sounds like the most likely fix. Thanks again.

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

TOYOTA

community_crosslink_rmh_model

MARKX