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2014 Passat S 1.8 5MT - Warm Engine Rattling/Clacking at idle (PLEASE HELP)


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robsbarone
New User

Dec 21, 2020, 4:08 PM

Post #1 of 6 (361 views)
2014 Passat S 1.8 5MT - Warm Engine Rattling/Clacking at idle (PLEASE HELP) Sign In

This noise starts only after the engine has warmed up, and not when cold...There is no performance loss, no vibrations - just a loud diesel-like rattling and clacking that's noticeable at idle when stopped. The noise almost disappears if you barely hold the accelerator to keep revs around 1000 RPMs at a stop. Every once in a great while, I'll notice the noise completely disappears for about 30 secs. before coming right back again. I've had this noise for quite a while because repairs are too costly for now. Researching this problem online tells me it could be so many different things!!

To help eliminate some possible causes:
- The transmission and clutch are fairly new replaced by VW under warranty
- The Timing chain tensioner was replaced recently (which was done supposedly to fix this problem)

The last half of the video clip is from the mechanic who "fixed" my chain tensioner a few months ago. When i paid him the $1200 for the repair - I was given a hand written receipt, a copy of that video, and an explanation that it was the cam something or another. All I understood is the part when he said it will be expensive. After paying for a repair that had no effect at all to the noise (except that it has gotten a little louder as time goes on) I kind of lost faith (whether his fault or not) in this guy and hence his explanation wasn't going to matter to me at the time.

If anyone can help me figure this out please, it will be greatly appreciated!

-a small clip of the noise from the engine bay:

https://drive.google.com/...=sharing​​​​


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 21, 2020, 4:42 PM

Post #2 of 6 (353 views)
Re: 2014 Passat S 1.8 5MT - Warm Engine Rattling/Clacking at idle (PLEASE HELP) Sign In

He has the cam cover off for the video. I don't know what he is trying to show you with that.

That is something that is going to have to be diagnosed in person, not over the Internet.



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Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 21, 2020, 4:47 PM

Post #3 of 6 (351 views)
Re: 2014 Passat S 1.8 5MT - Warm Engine Rattling/Clacking at idle (PLEASE HELP) Sign In

IDK mostly? I'd also take it back if you already paid to get rid of that noise? Hand written is legal and fine if you wish take pics of that for filing a copy of it.
Noises naturally elusive by devices yet pretty good job you posted. Only doing it warm suggests a maybe of oil viscosity WAY to thin either wrong type or somehow diluted with fuel check it to see if too full or has an odor other than normal if you know what normal would be?


You came for a guess it sounds to me like valve train noise of super low oil pressure or things lost or can't self adjust under oil pressure??


I tried,


T



robsbarone
New User

Dec 21, 2020, 10:44 PM

Post #4 of 6 (326 views)
Re: 2014 Passat S 1.8 5MT - Warm Engine Rattling/Clacking at idle (PLEASE HELP) Sign In

thanks for your input..i appreciate your time and will look into it


robsbarone
New User

Dec 21, 2020, 10:45 PM

Post #5 of 6 (324 views)
Re: 2014 Passat S 1.8 5MT - Warm Engine Rattling/Clacking at idle (PLEASE HELP) Sign In

i agree thanks


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 22, 2020, 7:15 AM

Post #6 of 6 (311 views)
Re: 2014 Passat S 1.8 5MT - Warm Engine Rattling/Clacking at idle (PLEASE HELP) Sign In

Good luck and feel the pain for you AND your engine has the beginning of fatal sound IMO only - just what you wanted to hear - NOT!


Tom






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