Si engine clattering sound 3600 - 4500 RPM

jeffer7330 · 07-18-2006, 12:46 AM

I have a 2006 Si with 5,200 miles on it and notice, when the window is rolled up and A/C is off, that the engine makes a clattering sound starting at 3600 RPM and seeming to cut out at 4500 RPM. Doesn't matter what gear it is in, but the noise is most pronounced in 3rd and 4th gears when the car is warmed up.

I do not mind the noise much, but am only concerned that there is nothing wrong with the engine.

Anybody have ideas about what the cause of the noise is, and whether this is normal?

Thanks in advance for any thoughts.

crazyj · 07-18-2006, 10:09 PM

Sounds scary, I would take it into the dealer.
-J

jeffer7330 · 07-19-2006, 12:29 AM

Been driving and listening to the sound, it is fairly subtle. I am thinking this is normal, but that I did not hear it before because I went through the RPM range with brisk accelerations.

BLU BY U · 07-19-2006, 12:34 AM

is this under heavy acceleration?

jeffer7330 · 07-19-2006, 04:35 AM

Hi - no, this sound can be heard when I accelerate very slowly in 2nd, 3rd, 4th or 5th gear between 2600-4400 RPM. Gotta listen closely for the sound (no AC, windows up, moonroof closed, no radio).

BLU BY U · 07-19-2006, 07:35 AM

go to the dealer asap, or try to get a video up so we can hear it too.

sonitex · 07-19-2006, 09:56 AM

Are using 91 octane or higher? If you are using regular, what you may be hearing is valve ping.

televascular · 07-20-2006, 03:00 AM

There are several threads on the TOV forum about this. The general concensus was that it was the timing chain rattling under high rpms and was completely normal. More than thirty people posted, replying that they too had the rattling sound, so it eases my mind.

For the durability of a timing chain, I'm willing to deal with a little rattle.

jeffer7330 · 08-05-2006, 10:55 PM

Quote:

Originally Posted by televascular

There are several threads on the TOV forum about this. The general concensus was that it was the timing chain rattling under high rpms and was completely normal. More than thirty people posted, replying that they too had the rattling sound, so it eases my mind.

For the durability of a timing chain, I'm willing to deal with a little rattle.

Thanks, good to know. The noise is not always there, and is pretty subtle. Only happens when the car is in gear - I can rev the engine in neutral and all is good. My neighbors probably don't enjoy hearing the engine screaming at night, but some of them have Harley's, so I figure that fair is fair:)

K20Z3Si · 08-06-2006, 12:55 AM

I like the sound of the acutal engine in this car more than almost anything but a c6 z06 or a ferrari or somthing of that nature. Its not a camary as far as quietness goes but their should never be a METALIC sound coming from the motor ever. as long as its not metaly i wouldnt worry too much.

07-18-2006, 12:46 AM	#1 (permalink)
jeffer7330 Member Join Date: Jul 2006 Posts: 82 iTrader: 1 / 100%	Si engine clattering sound 3600 - 4500 RPM I have a 2006 Si with 5,200 miles on it and notice, when the window is rolled up and A/C is off, that the engine makes a clattering sound starting at 3600 RPM and seeming to cut out at 4500 RPM. Doesn't matter what gear it is in, but the noise is most pronounced in 3rd and 4th gears when the car is warmed up. I do not mind the noise much, but am only concerned that there is nothing wrong with the engine. Anybody have ideas about what the cause of the noise is, and whether this is normal? Thanks in advance for any thoughts.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2006 Honda Civic Engine Information	webby	Garage	6	11-21-2008 04:23 PM
2006 check engine light and dont go over 3500 rpm	bodydraggin	Mechanical Problems & Technical Chat	15	07-21-2008 09:48 PM
2006 Civic Engine: I-VTEC	webby	Garage	8	10-16-2007 12:54 AM
Kind of interesting - Honda Chronology 1946-2005	webby	Water Cooler	4	10-04-2006 10:39 PM
2006 honda world news	webby	Garage	0	07-25-2005 10:31 AM

07-18-2006, 10:09 PM	#2 (permalink)
crazyj Senior Member Join Date: Jun 2006 Age: 27 Posts: 637 iTrader: 0 / 0%	Sounds scary, I would take it into the dealer. -J

07-19-2006, 12:29 AM	#3 (permalink)
jeffer7330 Member Join Date: Jul 2006 Posts: 82 iTrader: 1 / 100%	Been driving and listening to the sound, it is fairly subtle. I am thinking this is normal, but that I did not hear it before because I went through the RPM range with brisk accelerations.

07-19-2006, 12:34 AM	#4 (permalink)
BLU BY U Senior Member Join Date: Apr 2006 Age: 24 Posts: 7,601 iTrader: 2 / 100%	is this under heavy acceleration?

07-19-2006, 04:35 AM	#5 (permalink)
jeffer7330 Member Join Date: Jul 2006 Posts: 82 iTrader: 1 / 100%	Hi - no, this sound can be heard when I accelerate very slowly in 2nd, 3rd, 4th or 5th gear between 2600-4400 RPM. Gotta listen closely for the sound (no AC, windows up, moonroof closed, no radio).

07-19-2006, 07:35 AM	#6 (permalink)
BLU BY U Senior Member Join Date: Apr 2006 Age: 24 Posts: 7,601 iTrader: 2 / 100%	go to the dealer asap, or try to get a video up so we can hear it too.

07-19-2006, 09:56 AM	#7 (permalink)
sonitex Senior Member Join Date: Apr 2006 Location: CT Posts: 334 iTrader: 0 / 0%	Are using 91 octane or higher? If you are using regular, what you may be hearing is valve ping.

07-20-2006, 03:00 AM	#8 (permalink)
televascular Senior Member Join Date: Apr 2006 Location: New Jersey Posts: 276 iTrader: 0 / 0%	There are several threads on the TOV forum about this. The general concensus was that it was the timing chain rattling under high rpms and was completely normal. More than thirty people posted, replying that they too had the rattling sound, so it eases my mind. For the durability of a timing chain, I'm willing to deal with a little rattle.

08-06-2006, 12:55 AM	#10 (permalink)
K20Z3Si Senior Member Join Date: Jul 2006 Location: IL Posts: 158 iTrader: 0 / 0%	I like the sound of the acutal engine in this car more than almost anything but a c6 z06 or a ferrari or somthing of that nature. Its not a camary as far as quietness goes but their should never be a METALIC sound coming from the motor ever. as long as its not metaly i wouldnt worry too much.