Knocking coming from in valve cover - Engine Troubleshooting


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

mdma pills for sale : WhatsApp +33758633852

ketamine, 4-MMC, MDPV, methylone, amphet...

Buy Nembutal Oral Solution Pentobarbital.. WhatsApp +33758633852

order nembutal online in Germany (WhatsA...

Drive Shaft Repair

I have a 2015 Chevy Traverse AWD. The fr...

2006 Toyoto Camry XLE Driver Side Electric Window Trouble

Hello, Looking for a little brain help ...

Tierod end change caused some kind of leak

Hello so I just took my car to the nearb...

2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes

When I bought this car in summer 2023, a...

Grounding Cable, 2017 Jeep Renegade Trailhawk

The Cable that connects my negative batt...

Rough Idle (Found new thing)

Hi everyone. First of all sorry for bad ...

equipment

hey yall. im a first year engineering st...

HELP

I have a 1956 1/2 ton panel truck, 69 35...

Knocking coming from in valve cover

Sign up here!

Email This Post

Auto Repair Home>> Automotive Repair>> Engine Troubleshooting

bigmike6117
User

Sep 22, 2011, 4:18 PM

Post #1 of 4 (3309 views)

Knocking coming from in valve cover	Sign In

I have a '92 Nissan Stanza with 200,000 mile. Recently I have been hearing a knocking sound coming from inside the valve cover. It makes the car sound like a diesel! The plugs and wires were recently changed along with the cap and rotor. The oil was changed on schedule as well back in July. I'm kinda stumped on this one. What should be the first thing I check, and what are some probable causes? Thanks

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Sep 22, 2011, 4:45 PM

Post #2 of 4 (3302 views)

Re: Knocking coming from in valve cover	Sign In

Can you video/record the sound and put it up on a video hosting site and then send us the link? You might get better advice if we are able to hear what your hearing.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

bigmike6117
User

Sep 23, 2011, 8:29 AM

Post #3 of 4 (3277 views)

Re: Knocking coming from in valve cover	Sign In

https://www.youtube.com/watch?v=Y6yle1i-cQQ&feature=youtube_gdata_player

I hope it works first time at it.

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Sep 23, 2011, 6:53 PM

Post #4 of 4 (3257 views)

Re: Knocking coming from in valve cover	Sign In

The video/audio uploaded good. The quality isn't that great. The clacking sounds like hydraulic lash noise in the valve train or the timing chain is slapping around from worn out guides. How is the oil pressure. Spec is more than 11 psi at idle. Does the clacking get worse or better as it warms up? Does it go away or get worse with the engine at higher rpms?

You might need to pull the valve cover and do some inspecting under there. Check for worn out cam lobes/followers and sloppy chain.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Sep 23, 2011, 7:02 PM)

Email This Post

Search for (options) Privacy Sitemap