Has anyone heard a tapping noise? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

edog · 09-03-2009, 10:17 PM

When starting my car fresh for a day, and letting it idle for a little I hear 4 taps in the right rear quarter. It sounds as if someone is tapping in the car with a key or something.

The taps are quick taps. It only does it once.

http://www.camaro5.com/forums/showth...highlight=EVAP
Thanks Sterlingnotes!

CWI · 09-03-2009, 10:58 PM

Shunt in the trunk. Or perhaps yours came equipped with a trunk monkey.

zekefreak · 09-03-2009, 11:15 PM

My husband and I also have heard a tapping noise in the back of the car shortly after we start it up after sitting for awhile. The first time this happened, we thought someone was tapping on the back window or something. Very distinct quick taps. This is the first post I have seen about this tapping noise. It only does it one time (about 4 taps) and it is not heard again. It doesn't happen all the time. I have heard it three times.

Sterling · 09-03-2009, 11:22 PM

I remember hearing about this in another thread... here is FbodFather's response:

Quote:

Originally Posted by fbodfather

The description sounds like a noise that ours (as well as other manufacturers' vehicles make shortly after cold start and that is the EVAP purge and/or vent valve making noise during the EVAP self-test.

The following PIs and bulletins describe this noise on some of our other vehicles - your dealer has this info:

PIC4317D
04-06-05-009C
08-06-04-008
06-06-04-062A
AIP3301

If you are concerned that the noise is excessive, it would probably be best to have your dealer evaluate it and determine that it is a result of the EVAP test.

We are able to achieve great fuel economy numbers and low emissions due, in part to electronics such as this.

CamaroSS_LS3 · 09-03-2009, 11:22 PM

I have this same issue, does it when the car is cold, just started after I drive about a mile from my home does it at the same intersection (cold start time coincidence?) Happens only once each day I drove it but haven’t noticed it lately. The first couple times we hear it my wife and I look at each other with that WTF was that look.

Sounds like somebody tapping on the rear passenger side quarter panel.

I never posted this issue before because nobody else mentioned it and didn’t want to sound like I was NUTS. It doesn’t seem to happen as often now that I have 3800 miles on the car but it was so weird I would love to hear an explanation of what the heck that sound is.

Sterling · 09-03-2009, 11:26 PM

Here is a link to that thread I mentioned ^

http://www.camaro5.com/forums/showth...highlight=EVAP

CamaroSS_LS3 · 09-03-2009, 11:31 PM

Quote:

Originally Posted by sterlingnotes

Here is a link to that thread I mentioned ^

http://www.camaro5.com/forums/showth...highlight=EVAP

Wow that’s the 1st time I got an answer as I was typing my reply. That makes sense and it is a relief to finally know what that sound was.

They should find a way to insulate that little booger so people don't say WTF was that and take the car in for unnecessary service.

edog · 09-04-2009, 09:03 AM

Quote:

Originally Posted by zekefreak

My husband and I also have heard a tapping noise in the back of the car shortly after we start it up after sitting for awhile. The first time this happened, we thought someone was tapping on the back window or something. Very distinct quick taps. This is the first post I have seen about this tapping noise. It only does it one time (about 4 taps) and it is not heard again. It doesn't happen all the time. I have heard it three times.

Great, not the noise but...I thought I was going nuts. It is identical for me. I have been meaning to post, but never did.

rmpackers · 09-04-2009, 10:39 AM

Quote:

Originally Posted by sterlingnotes

Here is a link to that thread I mentioned ^

http://www.camaro5.com/forums/showth...highlight=EVAP

Thank you so very much! I have heard it a couple of times in that same area. Sounded to me like little pings of gravel, but sometimes I was sitting still. Makes sense!

glambert1 · 09-04-2009, 11:55 AM

don't be fooled by GM's lies it may be something more sinister , they may be tring to communicate

greenrail · 09-04-2009, 12:49 PM

Gosh folks, with all the emissions and safety stuff these cars have nowadays, I would be more concerned if I didn'there any of these types of noises.

Nothing to be worried about. FBodFather posted the information as noted earlier.

I could always comment about the noise being "woodpeckers", but then, that could lead to a fatal comedic spiral.!

marcgo2 · 09-04-2009, 12:50 PM

While I nodded, nearly napping, suddenly there came a tapping

CamaroSS_LS3 · 09-04-2009, 01:32 PM

Quote:

Originally Posted by greenrail

Gosh folks, with all the emissions and safety stuff these cars have nowadays, I would be more concerned if I didn'there any of these types of noises.

Nothing to be worried about. FBodFather posted the information as noted earlier.

I could always comment about the noise being "woodpeckers", but then, that could lead to a fatal comedic spiral.!

I'm no longer worried now that it was explained, it was just weird when I didn't know what it was.

greenrail · 09-04-2009, 01:51 PM

I had an Acura, Impala, Grand Prix, Two Camaros and they all made that noise. So your fears should hoepfully be quelled.

Enjoy the Car. I love mine!

09-03-2009, 10:17 PM	#1
edog Drives: 2010 2SS/RS IOM Join Date: Oct 2008 Location: F'BURG VA Posts: 3,828 View My Garage	Has anyone heard a tapping noise? When starting my car fresh for a day, and letting it idle for a little I hear 4 taps in the right rear quarter. It sounds as if someone is tapping in the car with a key or something. The taps are quick taps. It only does it once. http://www.camaro5.com/forums/showth...highlight=EVAP Thanks Sterlingnotes! __________________ Update...Build in process, Forged Rods, Pistons and rings, Johnson Lifters, NOVI1500 ECS SC, 13lb boost or more, LS3 Conversion 114/228/241 COMP CAM, Frostbite 4 row Aluminum radiator, 6L80 built, Circle D 6L80 PRO SERIES MULTI 258MM 2D, Stock 3.45 gears, 1-7/8 American Racing Headers w/HF cat, X-Pipe, Lingenfelter dual fuel pump, E-85 flex sensor, ATI super damper pulley, Ported TB, 160 therm, Trans cooler, Pedder's sways/end links/sub frame bushings, BMR trailing arms & toe rods, Coil overs. HP/TQ pending Last edited by edog; 09-04-2009 at 09:16 AM. Reason: Follow the link for the answer.

09-03-2009, 10:58 PM	#2
CWI Helping Build America Drives: 2010 2SS/RS,LS3 2013 Duramax 3500HD Join Date: Aug 2008 Location: Freeport LPG Export Posts: 3,839 View My Garage	Shunt in the trunk. Or perhaps yours came equipped with a trunk monkey. __________________ Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting "Holy shit, what a ride!"

09-03-2009, 11:22 PM	#5
CamaroSS_LS3 Drives: 2010 Camaro 2SS/RS IOM/IOM 6M Join Date: Jun 2009 Location: Delaware, Ohio Posts: 242 View My Garage	I have this same issue, does it when the car is cold, just started after I drive about a mile from my home does it at the same intersection (cold start time coincidence?) Happens only once each day I drove it but haven’t noticed it lately. The first couple times we hear it my wife and I look at each other with that WTF was that look. Sounds like somebody tapping on the rear passenger side quarter panel. I never posted this issue before because nobody else mentioned it and didn’t want to sound like I was NUTS. It doesn’t seem to happen as often now that I have 3800 miles on the car but it was so weird I would love to hear an explanation of what the heck that sound is. __________________ 2SS/RS 6 speed manual. VIN# 2G1FT1EW7A9116851 No Mod's love it just the way it is.

09-04-2009, 11:55 AM	#10
glambert1 HOMER Drives: 2010 camaro 2LT RS SIM Join Date: May 2009 Location: New York Posts: 527	don't be fooled by GM's lies it may be something more sinister , they may be tring to communicate __________________ ....do it yourself and be proud when you brag about your mods...

09-04-2009, 12:49 PM	#11
greenrail Comic Curmudgeon Drives: 2010 Camaro 2SS-2010 VW CC Sport Join Date: Mar 2008 Location: Near Chicago, IL Posts: 2,395	Gosh folks, with all the emissions and safety stuff these cars have nowadays, I would be more concerned if I didn'there any of these types of noises. Nothing to be worried about. FBodFather posted the information as noted earlier. I could always comment about the noise being "woodpeckers", but then, that could lead to a fatal comedic spiral.! __________________ Member Illinois Camaro Club His Name is Rosie - "Speak Softly and Carry a Big Stick!" - If you know who said that, then you know the genesis of his name.

09-03-2009, 11:15 PM	#3
zekefreak Sweet Sassy m' lassie Drives: 1979 Z28, 2010 SS/RS Join Date: Mar 2009 Location: Baden, PA Posts: 112	My husband and I also have heard a tapping noise in the back of the car shortly after we start it up after sitting for awhile. The first time this happened, we thought someone was tapping on the back window or something. Very distinct quick taps. This is the first post I have seen about this tapping noise. It only does it one time (about 4 taps) and it is not heard again. It doesn't happen all the time. I have heard it three times.

09-03-2009, 11:26 PM	#6
Sterling Drives: 2010 Camaro 1LT/RS M6 Join Date: Nov 2007 Location: Fairhaven, MA Posts: 5,885 View My Garage	Here is a link to that thread I mentioned ^ http://www.camaro5.com/forums/showth...highlight=EVAP

09-04-2009, 12:50 PM	#12
marcgo2 Drives: '16 Camaro 2SS Hyper Blue Join Date: Mar 2009 Location: IL Posts: 339	While I nodded, nearly napping, suddenly there came a tapping __________________

09-04-2009, 01:51 PM	#14
greenrail Comic Curmudgeon Drives: 2010 Camaro 2SS-2010 VW CC Sport Join Date: Mar 2008 Location: Near Chicago, IL Posts: 2,395	I had an Acura, Impala, Grand Prix, Two Camaros and they all made that noise. So your fears should hoepfully be quelled. Enjoy the Car. I love mine! __________________ Member Illinois Camaro Club His Name is Rosie - "Speak Softly and Carry a Big Stick!" - If you know who said that, then you know the genesis of his name. Last edited by greenrail; 12-17-2009 at 12:42 PM.

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