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Discussion Starter · #1 ·
Hi guys,
On the weekend my GTC started making a screeching noise, I took it to 3 mechanics who could not book me in anytime soon.

When I remove the dipstick or oil cap there is a strong vacuum that makes it difficult to lift up (especially the oil cap).

From reading up it seems it may be a diaphragm valve and a new engine rocket cover is needed. I am not too knowledgeable on cars so any help will do.

I have a video but the file is too large to upload.

Thanks!
 
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