Clicking while decelerating and accelerating, not suspension

repmud · 05-10-2007, 04:59 PM

Update for anyone who cares:
I ended up having a cracked drive shaft by the rear end connection. Liberty Subaru found it and replaced under warranty.

I don't think it's the CV's on the axel, but I haven't been able to pin point where the noise is comming from. The wife says it's on the drivers side, I think it's comming from the center, either way it's in the rear somewhere by the rear seat or slightly behind it. This happens when I stop accelerating, but not instantly, it does not seem to be caused by instant lift. It takes about 1/2sec to 1sec to click. If I ease back to the throttle it will click again. I do not feel anything, I just hear it. Any ideas? I am probably going to go to the dealer eventualy because I believe this will be covered, but I would like to know what it could be so they do not BS me. Thanks.

MGizzle · 05-11-2007, 11:01 AM

I freaked out about this when I got my car. I forgot which thread here somebody explained it but it is because of our rear diff. Nothing is wrong with your car. The diff wears a bit/breaks in a bit and you have a bit of slop of some sort and that is what you hear.

I have had this noise for over 30k now and I race and daily drive my car without any issues so far outside of plenty noises I never heard before

Anyhow, search for a thread starting with knocking in the rear and somebody explains how the 1.5 lim slip diff's do that.

flatthump · 05-11-2007, 11:05 AM

Same here^

Darkiller · 05-11-2007, 11:12 AM

funnie thing is i was going to post the same thing .. Say your in second gear and all of a sudden u lift u will get a click hmm i guess it happens to us all it sound like it

r12rex · 05-11-2007, 11:14 AM

Normal...no worries. We all have it...I do too!

Worried me at first as well...but sought info and we are all ok.

Kind Regards,
Ryan

SubyFi · 05-11-2007, 11:18 AM

Try and retighten the rear axle nuts to 140 ft lbs. with a 32mm socket.

repmud · 05-12-2007, 05:13 PM

Thanks guys...I was trying to think of another word for clicking to search for, never thought of knocking...

HarlanPepper · 05-12-2007, 05:33 PM

Yeah, the STI makes a racket after getting a few miles on it. My brake pads slap around in the back, my diff clicks and clacks, no shortage of interior rattles. It's character.

chaos311clarity · 05-13-2007, 04:50 AM

long story short... i took my car to subaru with this noise because it was pissing me off... the replaced my rear diff at roughly 8000 miles

because they couldnt figure it out.

HarlanPepper · 05-13-2007, 09:49 AM

Congrats on that. I went to a two different dealerships and they couldn't figure it out either... but I didn't get a new diff out of it

MGizzle · 05-15-2007, 05:48 AM

The dealers crack me up. 95% of them have no idea about cars and common sense mechanical abilities but they do know how to get money from Subaru.

ScbiSnx · 05-24-2007, 07:58 PM

Don't knock em on a daily basis if your good we see stuff you could never imagine. The knocking is a series of issues; first the rear axles need to be backed out the hub slightly, then lubed, slid back into place and retorqued with a new nut. Second if it only happens while accel-decel and vise versa then the next step is the axles being toasted, inner cv joints get toasted pretty easily but on different levels of damage, and finally buy yourself a ned ring and pinion. Have fun but burn the clutch not the drivetrain.

repmud · 10-20-2007, 04:51 PM

bump for problem solved.

FleaDog · 10-20-2007, 09:20 PM

Drivetrain clunk on decel/engine braking...

repmud · 10-22-2007, 06:48 AM

I guess I should have wrote that I edited the 1st post and added the solution to my problem. It is in bold.

05-10-2007, 04:59 PM	#1
repmud Junior STI Driver Car: AP 2005 STI Posts: 73 Join Date: Feb 2006 Trader Rating: (0)	Clicking while decelerating and accelerating, not suspension Update for anyone who cares: I ended up having a cracked drive shaft by the rear end connection. Liberty Subaru found it and replaced under warranty. I don't think it's the CV's on the axel, but I haven't been able to pin point where the noise is comming from. The wife says it's on the drivers side, I think it's comming from the center, either way it's in the rear somewhere by the rear seat or slightly behind it. This happens when I stop accelerating, but not instantly, it does not seem to be caused by instant lift. It takes about 1/2sec to 1sec to click. If I ease back to the throttle it will click again. I do not feel anything, I just hear it. Any ideas? I am probably going to go to the dealer eventualy because I believe this will be covered, but I would like to know what it could be so they do not BS me. Thanks. This ad is not endorsed by this member. Please register or login to hide this ad. Last edited by repmud : 10-20-2007 at 04:49 PM. Reason: dealer found problem

05-11-2007, 11:01 AM	#2
MGizzle Professional STI Racer Car: 05 STi OBP Fav Mod: Data Acq System Location: Warren, Michigan Posts: 786 Join Date: Jul 2006 Trader Rating: (1)	Re: Clicking while decelerating and accelerating, not suspension I freaked out about this when I got my car. I forgot which thread here somebody explained it but it is because of our rear diff. Nothing is wrong with your car. The diff wears a bit/breaks in a bit and you have a bit of slop of some sort and that is what you hear. I have had this noise for over 30k now and I race and daily drive my car without any issues so far outside of plenty noises I never heard before Anyhow, search for a thread starting with knocking in the rear and somebody explains how the 1.5 lim slip diff's do that.

05-11-2007, 11:05 AM	#3
flatthump Enginerd Car: The Spaze Mobile Fav Mod: Tuning Location: South O.C., Ca Posts: 13,020 Join Date: Jan 2006 Trader Rating: (5)	Re: Clicking while decelerating and accelerating, not suspension Same here^

05-11-2007, 11:12 AM	#4
Darkiller Spec C Club Car: 2006 STI BLUE Fav Mod: Fp20g and protune Location: 1000 oaks, SoCA Posts: 1,505 Join Date: Dec 2005 Trader Rating: (0)	Re: Clicking while decelerating and accelerating, not suspension funnie thing is i was going to post the same thing .. Say your in second gear and all of a sudden u lift u will get a click hmm i guess it happens to us all it sound like it

05-11-2007, 11:14 AM	#5
r12rex Professional STI Racer Car: 06 OBP STi Location: Orange County, CA Posts: 793 Join Date: Sep 2005 Trader Rating: (7)	Re: Clicking while decelerating and accelerating, not suspension Normal...no worries. We all have it...I do too! Worried me at first as well...but sought info and we are all ok. Kind Regards, Ryan

05-11-2007, 11:18 AM	#6
SubyFi Spec C Club Car: '05 STi in OBP Fav Mod: coilovers & www.hpdedriver.com Location: L.A. (SFV), CA Posts: 1,172 Join Date: Aug 2004 Trader Rating: (4)	Re: Clicking while decelerating and accelerating, not suspension Try and retighten the rear axle nuts to 140 ft lbs. with a 32mm socket.

05-12-2007, 05:13 PM	#7
repmud Junior STI Driver Car: AP 2005 STI Posts: 73 Join Date: Feb 2006 Trader Rating: (0)	Re: Clicking while decelerating and accelerating, not suspension Thanks guys...I was trying to think of another word for clicking to search for, never thought of knocking...

05-12-2007, 05:33 PM	#8
HarlanPepper Professional STI Racer Car: 04 Subaru WRX STi Fav Mod: ACPT driveshaft Location: Happy Valley Posts: 787 Join Date: Oct 2003 Trader Rating: (1)	Re: Clicking while decelerating and accelerating, not suspension Yeah, the STI makes a racket after getting a few miles on it. My brake pads slap around in the back, my diff clicks and clacks, no shortage of interior rattles. It's character.

05-13-2007, 04:50 AM	#9
chaos311clarity STI Guru Car: 05 CGM STi Fav Mod: grip. Location: Southeastern PA Posts: 5,757 Join Date: Aug 2006 Trader Rating: (7)	Re: Clicking while decelerating and accelerating, not suspension long story short... i took my car to subaru with this noise because it was pissing me off... the replaced my rear diff at roughly 8000 miles because they couldnt figure it out.

05-13-2007, 09:49 AM	#10
HarlanPepper Professional STI Racer Car: 04 Subaru WRX STi Fav Mod: ACPT driveshaft Location: Happy Valley Posts: 787 Join Date: Oct 2003 Trader Rating: (1)	Re: Clicking while decelerating and accelerating, not suspension Congrats on that. I went to a two different dealerships and they couldn't figure it out either... but I didn't get a new diff out of it

05-15-2007, 05:48 AM	#11
MGizzle Professional STI Racer Car: 05 STi OBP Fav Mod: Data Acq System Location: Warren, Michigan Posts: 786 Join Date: Jul 2006 Trader Rating: (1)	Re: Clicking while decelerating and accelerating, not suspension The dealers crack me up. 95% of them have no idea about cars and common sense mechanical abilities but they do know how to get money from Subaru.

05-24-2007, 07:58 PM	#12
ScbiSnx Junior STI Driver Car: '07 STI WRB Location: NoVa Posts: 54 Join Date: Jul 2006 Trader Rating: (0)	Re: Clicking while decelerating and accelerating, not suspension Don't knock em on a daily basis if your good we see stuff you could never imagine. The knocking is a series of issues; first the rear axles need to be backed out the hub slightly, then lubed, slid back into place and retorqued with a new nut. Second if it only happens while accel-decel and vise versa then the next step is the axles being toasted, inner cv joints get toasted pretty easily but on different levels of damage, and finally buy yourself a ned ring and pinion. Have fun but burn the clutch not the drivetrain.

10-20-2007, 04:51 PM	#13
repmud Junior STI Driver Car: AP 2005 STI Posts: 73 Join Date: Feb 2006 Trader Rating: (0)	Re: Clicking while decelerating and accelerating, not suspension bump for problem solved.

10-20-2007, 09:20 PM	#14
FleaDog Professional STI Racer Car: 06 CGM/silver STI Fav Mod: DIY modding Location: Philadelphia Posts: 612 Join Date: Oct 2005 Trader Rating: (4)	Re: Clicking while decelerating and accelerating, not suspension Drivetrain clunk on decel/engine braking...

10-22-2007, 06:48 AM	#15
repmud Junior STI Driver Car: AP 2005 STI Posts: 73 Join Date: Feb 2006 Trader Rating: (0)	Re: Clicking while decelerating and accelerating, not suspension I guess I should have wrote that I edited the 1st post and added the solution to my problem. It is in bold. This ad is not endorsed by this member. Please register or login to hide this ad.