aww **** this is my clutch going out isn't it? - TriStateTuners.com :: Home of Tristate Auto Enthusiast

drew · 03-10-2007, 04:52 PM

i was at a light today and realized i was ideling at 2krpms, i pumped the clutch and it dropped down to normal idle (about 750 ) then i noticed while driving, if i shift into neuteral to coast my rpms stay were they were OR EVEN GO UP MORE. i was driving home, got to a hill at 3krpm and shifted to neuteral then as i coasted down my rpms steadily rose to 4k.

is that my clutch saying "**** you, replace me." ?

RyanG · 03-10-2007, 05:09 PM

no. thats an idle air problem or vacuum leak.

does the clutch slip while under boost?

drew · 03-10-2007, 05:13 PM

yes but the clutch has slipped since before i went f/i, it's a stock hyundai clutch

but vacuum leak.. i just installed a catch can about a week ago and thought i heard a hissing / whining sound under acceleration but figured it was the blower. and my vac is showing -23 sometimes, as far as i remember it was showing -20 before

thank you for your help, i also just threw a p0030 code for one of my o2 sensors and am worried ill have to take the car to the dearlship, i really dont have that much money to be blowing right now since i need to save for a clutch and still owe $900 on my ireland trip

RyanG · 03-10-2007, 05:18 PM

18-20 inches of vacuum is normal. 23 inches is not. def vacuum leak.

drew · 03-10-2007, 05:33 PM

okay, what should i do just spray a couple cans of fix a flat in my intake?

kidding, i'm using an AMW can, i figured it was quality but i guess it's probably the source of the leak. should I seal it with some silicone stuff or just some plumber tape ?

RyanG · 03-10-2007, 05:39 PM

well the how do you have the can routed? normally the open crankcase vents arent a problem. I'd take a look at the intake gaskets. Spray carb cleaner at the base of the intake mani/supercharger. see if the idle comes down.

drew · 03-10-2007, 05:59 PM

i didn't realize when i did it that i was only catching the oil from the front so i was about to go out and switch it so that both valve covers went to the catch can and then the catch can went straight to the intake

RayArroyo · 03-12-2007, 10:14 AM

Quote:

Originally Posted by drew

i didn't realize when i did it that i was only catching the oil from the front so i was about to go out and switch it so that both valve covers went to the catch can and then the catch can went straight to the intake

torque down the intake manifold bolts some more.

PaleDSM · 03-12-2007, 10:38 AM

Quote:

Originally Posted by AREA1320

18-20 inches of vacuum is normal. 23 inches is not. def vacuum leak.

Most of the time a leak in vacuum lines will decrease the amount of vacuum being pulled in the intake manifold. Pulling more vac now then before doesn't lead me to believe that vac leaks are the problem.

I would diagnose your idle controlling parts. IAC, FIAV, ISC, etc.

Orbit · 03-13-2007, 02:00 PM

What kind of catch can is that? looks nice. sorry ot

drew · 03-13-2007, 05:34 PM

it's an AMW can

Vince@R/TTuning · 03-13-2007, 11:54 PM

23 inches of vacumn under decel is normal.

highmilehatch · 03-14-2007, 02:16 PM

Quote:

Originally Posted by AREA1320

18-20 inches of vacuum is normal. 23 inches is not. def vacuum leak.

I'd rather have 23 inches of vacuum than 18-20. If there was a vacuum leak, the number would be lower, not higher.

Like the others have said, spray some brakekleen around the intake manifold and see if the idle comes down.

RyanG · 03-14-2007, 02:35 PM

yeah I def got that backwards lol.

another thing.. what EM are you using?? the timing could be advanced to far advanced possibly. Hmmmmmmmmmmm... this one is really puzzling

gary · 03-14-2007, 03:15 PM

Get that **** tuned yo!

Watch this vid Drew posted on another thread...
http://smg.photobucket.com/albums/v2...t=MVI_1174.flv

IS that 21:1 A/F Ratio? Stock car is around 14:1. Some other Tibs with about your same setup are running 10-12:1 A/F. Maybe the professionals want to comment on this?

drew · 03-14-2007, 05:26 PM

21:1 was when i completly let off the throttle ( the same time vac spikes to -23 ) from what i understand that's completly normal, i sit at 14.5-7 at idle

gary · 03-14-2007, 08:56 PM

Ohh ok, like I said before I am no FI master. I just put gas in mine and drive. =)

Honest_Bob · 03-15-2007, 07:21 AM

Quote:

Originally Posted by CiZiN

Ohh ok, like I said before I am no FI master. I just put gas in mine and drive. =)

Typical female...

igo4bmx · 03-23-2007, 05:22 PM

Quote:

Originally Posted by highmilehatch

I'd rather have 23 inches of vacuum than 18-20. If there was a vacuum leak, the number would be lower, not higher.

Like the others have said, spray some brakekleen around the intake manifold and see if the idle comes down.

true.dat

Dave · 03-23-2007, 05:36 PM

Quote:

Originally Posted by CiZiN

Ohh ok, like I said before I am no FI master. I just put gas in mine and drive. =)

umm thats not an FI trait, thats a "i just let off the throttle and now the engine is lean" trait ;)

03-10-2007, 04:52 PM	#1
drew Tri-State Post Whore Join Date: Sep 2006 Location: Broomall, PA Member #2617 My Ride: fuzion & exploder iTrader: (8)	aww this is my clutch going out isn't it? i was at a light today and realized i was ideling at 2krpms, i pumped the clutch and it dropped down to normal idle (about 750 ) then i noticed while driving, if i shift into neuteral to coast my rpms stay were they were OR EVEN GO UP MORE. i was driving home, got to a hill at 3krpm and shifted to neuteral then as i coasted down my rpms steadily rose to 4k. is that my clutch saying "**** you, replace me." ? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-10-2007, 05:09 PM	#2
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	no. thats an idle air problem or vacuum leak. does the clutch slip while under boost? __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-10-2007, 05:13 PM	#3
drew Tri-State Post Whore Join Date: Sep 2006 Location: Broomall, PA Member #2617 My Ride: fuzion & exploder iTrader: (8)	yes but the clutch has slipped since before i went f/i, it's a stock hyundai clutch but vacuum leak.. i just installed a catch can about a week ago and thought i heard a hissing / whining sound under acceleration but figured it was the blower. and my vac is showing -23 sometimes, as far as i remember it was showing -20 before thank you for your help, i also just threw a p0030 code for one of my o2 sensors and am worried ill have to take the car to the dearlship, i really dont have that much money to be blowing right now since i need to save for a clutch and still owe $900 on my ireland trip __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-10-2007, 05:18 PM	#4
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	18-20 inches of vacuum is normal. 23 inches is not. def vacuum leak. __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-10-2007, 05:33 PM	#5
drew Tri-State Post Whore Join Date: Sep 2006 Location: Broomall, PA Member #2617 My Ride: fuzion & exploder iTrader: (8)	okay, what should i do just spray a couple cans of fix a flat in my intake? kidding, i'm using an AMW can, i figured it was quality but i guess it's probably the source of the leak. should I seal it with some silicone stuff or just some plumber tape ? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-10-2007, 05:39 PM	#6
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	well the how do you have the can routed? normally the open crankcase vents arent a problem. I'd take a look at the intake gaskets. Spray carb cleaner at the base of the intake mani/supercharger. see if the idle comes down. __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-10-2007, 05:59 PM	#7
drew Tri-State Post Whore Join Date: Sep 2006 Location: Broomall, PA Member #2617 My Ride: fuzion & exploder iTrader: (8)	i didn't realize when i did it that i was only catching the oil from the front so i was about to go out and switch it so that both valve covers went to the catch can and then the catch can went straight to the intake __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-13-2007, 02:00 PM	#10
Orbit Tri-State Addict Join Date: Dec 2004 Location: Hainesport,nj Member #32 My Ride: 2002 WRX iTrader: (0)	What kind of catch can is that? looks nice. sorry ot

03-13-2007, 05:34 PM	#11
drew Tri-State Post Whore Join Date: Sep 2006 Location: Broomall, PA Member #2617 My Ride: fuzion & exploder iTrader: (8)	it's an AMW can __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-13-2007, 11:54 PM	#12
Vince@R/TTuning Vendor Join Date: Mar 2007 Location: telford Pa Member #3958 My Ride: the one in the back of the shop iTrader: (2)	23 inches of vacumn under decel is normal.

03-14-2007, 02:35 PM	#14
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	yeah I def got that backwards lol. another thing.. what EM are you using?? the timing could be advanced to far advanced possibly. Hmmmmmmmmmmm... this one is really puzzling __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Last edited by RyanG; 03-14-2007 at 02:52 PM.

03-14-2007, 03:15 PM	#15
gary Tri-State Post Whore Join Date: Mar 2006 Location: Northampton, PA Member #1638 My Ride: 2004 Hyundai Tiburon iTrader: (1)	Get that **** tuned yo! Watch this vid Drew posted on another thread... http://smg.photobucket.com/albums/v2...t=MVI_1174.flv IS that 21:1 A/F Ratio? Stock car is around 14:1. Some other Tibs with about your same setup are running 10-12:1 A/F. Maybe the professionals want to comment on this? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-14-2007, 05:26 PM	#16
drew Tri-State Post Whore Join Date: Sep 2006 Location: Broomall, PA Member #2617 My Ride: fuzion & exploder iTrader: (8)	21:1 was when i completly let off the throttle ( the same time vac spikes to -23 ) from what i understand that's completly normal, i sit at 14.5-7 at idle __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

03-14-2007, 08:56 PM	#17
gary Tri-State Post Whore Join Date: Mar 2006 Location: Northampton, PA Member #1638 My Ride: 2004 Hyundai Tiburon iTrader: (1)	Ohh ok, like I said before I am no FI master. I just put gas in mine and drive. =) __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

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