Recent Topics
Looking for info on two quick spray waxes.........
by demarpaint
05/01/16 04:43 AM
The Heroin Epidemic In The U.S....
by qwerty1234
05/01/16 01:28 AM
Air filter wrap
by Duffyjr
04/30/16 10:21 PM
15W-40 Delo, Delvac or Rotella For KUBOTA turbo
by pburchett
04/30/16 09:50 PM
Traveler synthetic oil a slow seller?
by Electromotive
04/30/16 09:34 PM
Tyre rubber, methanol, and bore wear
by Shannow
04/30/16 09:34 PM
What to use in 99 Buick Lesabre OCI?
by Duffyjr
04/30/16 09:26 PM
Help w/Transmission Drain/Fill 08 Honda CR-V 4wd
by klt1986
04/30/16 08:58 PM
pennzoil ultra platinum pure plus
by Brayden
04/30/16 08:10 PM
Group 5 synthetic oil
by Brayden
04/30/16 08:07 PM
Pennzoil Ultra platinum at Walmart
by RubentheIowan
04/30/16 08:03 PM
G-05 Change intervals, 3 or 5 years?
by Canadastang
04/30/16 08:03 PM
Newest Members
Doxxy, Jetstreamz06, TalNum, Spinnizle, JustinL
57758 Registered Users
Who's Online
52 registered (Bandito440, bmod305, BobFout, bbhero, AirgunSavant, BobsArmory, 1 invisible), 801 Guests and 93 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
57758 Members
66 Forums
248282 Topics
4059897 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: 1868
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?
_________________________
Experts are often wrong, but rarely in doubt.

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


Registered: 04/13/13
Posts: 1168
Loc: The Right Coast
What kind of oil & filter are you running? Some oil filters can cause start up ticks/knocks.
_________________________
2013 Honda Pilot EX-L 4WD
2002 Honda Accord EX-L
2002 Infiniti I35


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


Registered: 11/05/13
Posts: 2161
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: 1868
Loc: California
Not using any oil.

Last OC was Chevron Supreme 5w-30, OCOD. Current fill is RP 5w-30 RP, RP filter.
_________________________
Experts are often wrong, but rarely in doubt.

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


Registered: 01/07/09
Posts: 2237
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 - 57k miles - Napa 0w20, Fram TG filter
'08 Sedona LWB 3.8L - 94k miles - Napa 0w20, K&N PS filter

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


Registered: 07/23/08
Posts: 8193
Loc: New Jersey
mileage?
how does your oil filter mount on that engine?


Edited by crazyoildude (01/04/14 09:45 PM)
_________________________
In Automotive class when i was a kid i had a shop teacher that always said ..Its Nice To Be Nice! That is one thing i always remembered..

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


Registered: 09/25/04
Posts: 4770
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)
_________________________
1988 BMW 528e 20w50 dino, STP filter

1994 Ranger ,the Rat, 5w30 dino, STP filter

'09 Camry SE, Valvoline bulk 5w30 and ? filter

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


Registered: 09/23/07
Posts: 8009
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: 1415
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: 1763
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.
_________________________
14 Kia Picanto 1.0 City 10k miles. Kia 5w30
07 Citroen Berlingo Multispace 1.4i 39k 10w40 Maxlife

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


Registered: 04/03/13
Posts: 645
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: 1868
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.

_________________________
Experts are often wrong, but rarely in doubt.

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


Registered: 02/24/11
Posts: 1868
Loc: California
Anybody look at the video?
_________________________
Experts are often wrong, but rarely in doubt.

Top