Weird Sound on my LS3..!! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ProudLS · 02-11-2010, 03:39 PM

Finally I have installed my ARH LT 1 7/8 no cats 3 inch connected with 2.5 inch Borla axel back

BUT I have a weird sound comes only when the RPM reaches between 2500 to 3000

while the car is moving especially when I am in 3rd or 4th gear??

Does any one know or faced this issue before? Thanks

Camar0wn3d · 02-11-2010, 05:20 PM

Yea, what does it sound like and where is it coming from? (engine compartment, under the car, behind the car).

Russell James · 02-11-2010, 08:02 PM

Make sure the heat shields underneath are not contacting anything. If the cats or anything else touches the heat shields it can make a buzz or grind type of noise. Look for the closest points of possible contacts and push the shielding farther away.

If it's not a shield contact, check for leaks. Maybe retighten the connections after a bit of driving.

Russell James · 02-11-2010, 08:04 PM

Also, how does it sound? That's a combo I may be thinking of.

Are you using the S Borlas, the loud ones? Any drone in 6th at highway spd?

ProudLS · 02-11-2010, 08:24 PM

The sound is coming from the axel back, nothing is touching I am sure, before I have my borla I used to hear it so loud but after installing it ( S type) the noise is less now but very clear at 3000 RPM after that it goes..!!

I thought maybe coz I have 3 inch pipes without cats that makes the sound?! I do not know.

ProudLS · 02-11-2010, 08:27 PM

Quote:

Originally Posted by Russell James

Also, how does it sound? That's a combo I may be thinking of.

Are you using the S Borlas, the loud ones? Any drone in 6th at highway spd?

The sound is awesome I really recommend it, you wont find a better combo

02-11-2010, 03:39 PM	#1
ProudLS Drives: Camaro SS Join Date: Dec 2009 Location: TX Posts: 193	Weird Sound on my LS3..!! Finally I have installed my ARH LT 1 7/8 no cats 3 inch connected with 2.5 inch Borla axel back BUT I have a weird sound comes only when the RPM reaches between 2500 to 3000 while the car is moving especially when I am in 3rd or 4th gear?? Does any one know or faced this issue before? Thanks

02-11-2010, 05:20 PM	#2
Camar0wn3d formerly "wh0rsep0wer" Drives: 2016 1SS Summit White Join Date: Oct 2008 Location: Myrtle Beach, SC Posts: 489	Yea, what does it sound like and where is it coming from? (engine compartment, under the car, behind the car). __________________ 2010 1SS/RS - CGM/Gray Interior - M6 (SOLD) Kooks 1 7/8" headers, Solo Mach-X, Vararam. 2012 2LS - Black A6 (SOLD) 2016 1SS Summit White A8

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02-11-2010, 08:02 PM	#3
Russell James Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009 Location: Mich Posts: 4,482	Make sure the heat shields underneath are not contacting anything. If the cats or anything else touches the heat shields it can make a buzz or grind type of noise. Look for the closest points of possible contacts and push the shielding farther away. If it's not a shield contact, check for leaks. Maybe retighten the connections after a bit of driving.

02-11-2010, 08:04 PM	#4
Russell James Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009 Location: Mich Posts: 4,482	Also, how does it sound? That's a combo I may be thinking of. Are you using the S Borlas, the loud ones? Any drone in 6th at highway spd?

02-11-2010, 08:24 PM	#5
ProudLS Drives: Camaro SS Join Date: Dec 2009 Location: TX Posts: 193	The sound is coming from the axel back, nothing is touching I am sure, before I have my borla I used to hear it so loud but after installing it ( S type) the noise is less now but very clear at 3000 RPM after that it goes..!! I thought maybe coz I have 3 inch pipes without cats that makes the sound?! I do not know.