Engine knock
#1
Advanced
Thread Starter
Engine knock
Hey All,
Im hoping someone could help me in identifying a new noise. Recently I have started to notice a knocking when turning off the car when warm. It doesn't happen at any other time except shut off when the car has warmed up. Other than the new knocking sound when turning off, the car operates perfectly. The only recent changes are a secondary muffler bypass and and oil change (15w50 mobil 1).
Any help in identifying the new mystery noise before taking it in to the shop is greatly appreciated.
Movie attached
Thanks again
Im hoping someone could help me in identifying a new noise. Recently I have started to notice a knocking when turning off the car when warm. It doesn't happen at any other time except shut off when the car has warmed up. Other than the new knocking sound when turning off, the car operates perfectly. The only recent changes are a secondary muffler bypass and and oil change (15w50 mobil 1).
Any help in identifying the new mystery noise before taking it in to the shop is greatly appreciated.
Movie attached
Thanks again
#2
Rennlist Member
Hey All,
Im hoping someone could help me in identifying a new noise. Recently I have started to notice a knocking when turning off the car when warm. It doesn't happen at any other time except shut off when the car has warmed up. Other than the new knocking sound when turning off, the car operates perfectly. The only recent changes are a secondary muffler bypass and and oil change (15w50 mobil 1).
Any help in identifying the new mystery noise before taking it in to the shop is greatly appreciated.
Movie attached
Thanks again
Im hoping someone could help me in identifying a new noise. Recently I have started to notice a knocking when turning off the car when warm. It doesn't happen at any other time except shut off when the car has warmed up. Other than the new knocking sound when turning off, the car operates perfectly. The only recent changes are a secondary muffler bypass and and oil change (15w50 mobil 1).
Any help in identifying the new mystery noise before taking it in to the shop is greatly appreciated.
Movie attached
Thanks again
Helio
#3
Advanced
Thread Starter
#4
Valve adjustment and heavier oil fixed it on mine. Regardless there is nothing to be worried about, just a normal engine shutdown sound dependent on many factors.
Thanks!
Andrew
Thanks!
Andrew
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911Jetta (08-11-2020)
#5
Technical Guru
Rennlist Member
Rennlist Member
That sound from the chain guides and the timing chain, occurs when the hydraulic chain tensioner loses oil pressure.
Last edited by JasonAndreas; 08-10-2020 at 11:08 AM.
The following users liked this post:
911Jetta (08-11-2020)
The following users liked this post:
911Jetta (08-11-2020)