Gumout Q&A

click here to participate in the Gumout Q&A

Recent Topics
SuperTech Synthetic - Best Value Oil?
by The Critic
37 seconds ago
Grapes From Chile
by Merkava_4
2 minutes 24 seconds ago
Any 420 friendly folks here???
by Joe_Power
Today at 12:45 AM
QSUD $14.47?
by tomcruise
Today at 12:01 AM
Ford Motor Co. MN-12
by HM12460
Yesterday at 11:41 PM
Anyone Use 5w30 Super Tech ?
by crazyoildude
Yesterday at 09:46 PM
Slick 50 Supercharged Engine Treatment ?
by lawnguy
Yesterday at 09:20 PM
Used an OCOD yesterday
by donnyj08
Yesterday at 08:23 PM
Havoline oils Mills Fleet Farm - April 17-25
by BrewCityR
Yesterday at 08:12 PM
Aisin ATF WS?
by NeilC
Yesterday at 07:58 PM
Lubrication Engineering
by Da Game
Yesterday at 07:33 PM
New Amsoil atv oil
by kawie_guy
Yesterday at 06:37 PM
Newest Members
NJM1965, csaig929, albertdi, MIRA5, JJMc
53625 Registered Users
Who's Online
19 registered (bbhero, 901Memphis, Ducked, Charlie1935, HM12460, doolah02, 2 invisible), 533 Guests and 185 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
53625 Members
66 Forums
229913 Topics
3678733 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3237662 - 01/04/14 08:57 PM 2010 Sentra piston slap?
Stelth Offline


Registered: 02/24/11
Posts: 1590
Loc: California
My wife drives a 2010 Sentra 2.0S. It's a nice little car, but when you start it cold, it almost sounds like a diesel. It quiets down after about 5 minutes of driving, and doesn't make that sound until the next cold start. In fact, at idle when it's warm, I almost can't hear it running.

Does that sound like piston slap? Does it mean anything?
_________________________
Scofflaw

Top
#3237679 - 01/04/14 09:11 PM Re: 2010 Sentra piston slap? [Re: Stelth]
mclasser Offline


Registered: 04/13/13
Posts: 603
Loc: The Right Coast
What kind of oil & filter are you running? Some oil filters can cause start up ticks/knocks.
_________________________
2013 Pilot--15K miles--QSUD 0W20 & Honda A02
2002 Accord--190K miles--VML 5W20 & Honda A01
2002 I35--95K miles--Castrol Edge 5W30 & Nissan 65F0E

Top
#3237682 - 01/04/14 09:12 PM Re: 2010 Sentra piston slap? [Re: Stelth]
Ramblejam Offline


Registered: 11/05/13
Posts: 1078
Loc: Kentucky
How much oil are you using (consumption)?

Top
#3237692 - 01/04/14 09:22 PM Re: 2010 Sentra piston slap? [Re: Stelth]
Stelth Offline


Registered: 02/24/11
Posts: 1590
Loc: California
Not using any oil.

Last OC was Chevron Supreme 5w-30, OCOD. Current fill is RP 5w-30 RP, RP filter.
_________________________
Scofflaw

Top
#3237702 - 01/04/14 09:30 PM Re: 2010 Sentra piston slap? [Re: Stelth]
Klutch9 Offline


Registered: 01/07/09
Posts: 2001
Loc: Rochester, MI, US, World
It could just be injectors. Many modern vehicles have noisy injectors that can be mistaken for piston slap or valve noise, especially when cold.
_________________________
'11 Fusion 2.5L - 47k miles - Napa 0w20
'08 Sedona LWB 3.8L - 81k miles - M1 0w40

Top
#3237722 - 01/04/14 09:44 PM Re: 2010 Sentra piston slap? [Re: Stelth]
crazyoildude Offline


Registered: 07/23/08
Posts: 6544
Loc: new jersey
mileage?
how does your oil filter mount on that engine?


Edited by crazyoildude (01/04/14 09:45 PM)

Top
#3237753 - 01/04/14 10:04 PM Re: 2010 Sentra piston slap? [Re: Stelth]
andyd Offline


Registered: 09/25/04
Posts: 4122
Loc: Marshfield , MA
Yah It maybe a bad anti drain back valve in the filter. I would try a new oil filter of a different brand.


Edited by andyd (01/04/14 10:05 PM)
_________________________
2 1988 BMW 528e 20w50 dino, STP filter

1994 Ranger ,600$ Rat, 5w30 dino, STP filter

Top
#3237757 - 01/04/14 10:09 PM Re: 2010 Sentra piston slap? [Re: Stelth]
artificialist Offline


Registered: 09/23/07
Posts: 7391
Loc: Florida
You can buy an automotive stethoscope for a few dollars and probe different parts of the car with it to determine a cause. There are youtube videos that explain how to use it.
_________________________
2010 Lancer Ralliart Sportback

Top
#3237777 - 01/04/14 10:24 PM Re: 2010 Sentra piston slap? [Re: Stelth]
Jeffs2006EvoIX Offline


Registered: 02/28/10
Posts: 1389
Loc: Imperial Valley, California
I wouldn't be surprised if it was the filter too. Try an oem filter and see if it does the same thing. That noise went away in previous hyundais I had as long as I used oem filters. Weird I know.

Jeff
_________________________
2013 VW GTI

Top
#3237835 - 01/04/14 11:34 PM Re: 2010 Sentra piston slap? [Re: Stelth]
bigjl Offline


Registered: 09/06/12
Posts: 1715
Loc: London, England
Why would a different filter or different anti drain back valve cause an engine noise that lasts 5 minutes?

A few seconds delay in the hydraulic tappets/lifters is one thing but 5 minutes.

Subarus have been known to suffer piston slap but it has had no obvious ill effect in engines affected.

Injector noise is an interesting theory.

I assume when cold more fuel will be injected in much the same way as a choke on a carb.

That would certainly fit with what the op is hearing.

Perhaps some fuel injector cleaner may help.

I would be inclined not to worry too much if the car otherwise runs well.
_________________________
06 Clio1.5DCi,141k 6kOCI Shell Extra 5w40
08 Pathfinder 2.5 Dci Sold with 125k
12 Jaguar XJL 3.0 D Luxury 120k 8kOCI Mob 1 ESP 5w30

Top
#3237899 - 01/05/14 02:29 AM Re: 2010 Sentra piston slap? [Re: Stelth]
shDK Offline


Registered: 04/03/13
Posts: 574
Loc: Denmark
Coult also be a leak in the exhaust manifold. A Crack or blown gasket. That close when the engine is getting warm.

Top
#3238061 - 01/05/14 09:29 AM Re: 2010 Sentra piston slap? [Re: shDK]
Stelth Offline


Registered: 02/24/11
Posts: 1590
Loc: California
Here's a video of a guy with a 2011 Sentra with the same sound. Skip to about 3:00, that's when you can really start hearing it.

_________________________
Scofflaw

Top
#3239558 - 01/06/14 03:02 PM Re: 2010 Sentra piston slap? [Re: Stelth]
Stelth Offline


Registered: 02/24/11
Posts: 1590
Loc: California
Anybody look at the video?
_________________________
Scofflaw

Top