| 2004-2007 Cadillac CTS-V General Discussion Discuss everything about the first generation Cadillac CTS-V that does NOT fall into either the Performance or Appearance Modification category. | Cadillac Forums: Left header clicking? 
12-28-07, 07:37 PM
| | Cadillac Owners Fanatic Cadillac(s): LS6 CTS-V  | | Join Date: Jun 2007 Location: Montgomery, Al. Age: 26 | | | Left header clicking?
I just put my kooks on the car and they went on without a hitch. The flanges were straight after the exchange and they bolted down flush and straight. The cats were tig welded on the magnaflow and everything was bolted down.
The car was started and I started to notice a clicking/ticking/chaffing sound that originated from the left side header. The sound is pretty much during the low rpms through each gear which leads me to think that I am dealing with an exhaust leak. I have taken the car in again and put it up on a lift and looked for leaks but found none.
It is def. the left header and it is def. not coming from the flange. I have looked and cannot find anywhere the leak could be coming from short of the collector where all the primaries run into where I couldn't actually see. To me it def. sounds like a exhaust leak b/c it kinda "chugs" during really low rpm's
My mechanic is telling me that it could be the injectors pulsing or maybe even the thinness of the new stainless headers that are resonating the sound, I dont really buy this though. Why, then I ask, would it only be on the left side then?
I'm really starting to get put off by this whole damn thing... |
12-28-07, 07:55 PM
|  | Cadillac Owners Member Cadillac(s): 05 maggied CTS-V, 03 maggied Z06 | | | | | Re: Left header clicking?
Stainless headers are a little more subject to emitting noises then the cast irons.
If your not throwing any codes, drive it for awhile.
Welcome to MOD HELL.
__________________
I am so expensive I can't even afford to hire me.... |
12-28-07, 08:08 PM
| | Cadillac Owners Fanatic Cadillac(s): LS6 CTS-V | | Join Date: Jun 2007 Location: Montgomery, Al. Age: 26 | | | Re: Left header clicking?
Quote:
Originally Posted by heavymetals  Stainless headers are a little more subject to emitting noises then the cast irons.
If your not throwing any codes, drive it for awhile.
Welcome to MOD HELL. | lol.
No codes...
......just a little bogging sometimes in 1st on takeoff if rpms are too low... 
Looks like it times for a StealthV tune = )
Last edited by CBVLS6; 12-28-07 at 08:14 PM.
|
12-28-07, 08:12 PM
|  | Cadillac Owners Connoisseur Cadillac(s): 05 Mallett 427 CTS-V | | Join Date: Aug 2006 Location: SoCal | | | Re: Left header clicking?
I get a slight rattling sound from my headers when first getting on it from low RPM.
I can only hear it if I have a window rolled down.
I have a feeling it's the normal sound of headers.
__________________
05 Mallett [M] CTS-V: 499WHP 497WTQ | 427 C5R Block | Ron Davis 2-Row Rad | [M] Oi1 Cooler | P&P LS6 Heads | FAST 78 IM | LPE CAI | SW 1-3/4" Headars | RT Hi Flow Cats | B&B 3" Exhaust | RPS Street-Twin Clutch | McLeod Billet Slave Cyl | [M] ST Shifter | RPM Trans Level-V Build | MN6 Geer Ratio Conv | Cryo Treated Diff | GM T2 Diff Cooler | [M] Anti Wheel Hop Kit | FG2 Shocks | SS Brake Limes | Slotted Cryo Rotars | [M] Modified Front Spindles | 275-35-19 PS2 F&R | [M] 19x9 Billet Whels F&R | |
12-29-07, 12:14 PM
|  | Das jus fo decorations Cadillac(s): 2006 CTS-V | | Join Date: Apr 2006 Location: Taxus | | | Re: Left header clicking?
It's an exhaust leak.
__________________  |
12-29-07, 04:21 PM
| | Cadillac Owners Fanatic Cadillac(s): LS6 CTS-V | | Join Date: Jun 2007 Location: Montgomery, Al. Age: 26 | | | Re: Left header clicking?
Quote:
Originally Posted by Silver Dollar It's an exhaust leak. | Yea.. thats what it sounds like, but I cant find the damn thing, even when its on the lift. |
12-29-07, 04:27 PM
|  | How YOU doin? Cadillac(s): 2007 SRX (Previously 04 CTS-V) | | Join Date: Dec 2004 Location: Over here. No, not there. | | | Re: Left header clicking?
^ Ditto. I'm inclined to think mine's a warped header flange after reading all the people who have this problem, but I can't pinpoint the leak even on a lift.
Question: Does yours make a "clacking" sound under wide open throttle? When I hit 4k under WOT, I get a lovely "bbbbbRRRRRRRRRRRRR RAT TAT TAT TAT TAT TAT" noise. It sounds like a damn dragster running open headers.
__________________
|
12-29-07, 04:33 PM
|  | <10 poasts, CF newbie Cadillac(s): 2007 CTS-V Thunder Gray w/ Lt Gray interior | | Join Date: Mar 2007 Location: Sunny CA. Age: 43 | | | Re: Left header clicking?
Leaks can be a bitch to find.
While the engine is still cold squirt the header with some soapy water while it's running. Not sure if this would work or not but I would try it as a last ditch effort.
Make sure and spray the welds as we as the interface between the headers and the heads. |
12-29-07, 04:35 PM
| | Cadillac Owners Connoisseur Cadillac(s): 05 Mallett 427 CTS-V | | Join Date: Aug 2006 Location: SoCal | | | Re: Left header clicking?
Rob, so are your headers silent? |
12-29-07, 05:01 PM
| | <10 poasts, CF newbie Cadillac(s): 2007 CTS-V Thunder Gray w/ Lt Gray interior | | Join Date: Mar 2007 Location: Sunny CA. Age: 43 | | | Re: Left header clicking?
If there making any noise I never noticed. I need to ride in a car with somone that has the Kooks headers to see if there is a difference. |
12-29-07, 06:53 PM
| | Cadillac Owners Fanatic Cadillac(s): LS6 CTS-V | | Join Date: Jun 2007 Location: Montgomery, Al. Age: 26 | | | Re: Left header clicking?
Now I'm throwing a CEL code... 
Bank 2, sensor 1, o2 sim. The car is bogging down real bad in 1st sometimes and then backfires.
WTF!!!
I cleaned the flanges and the side of the engine so I can drive around a little and look for any soot that may be escaping from a leak. I couldnt find any leaks even when I examined the engine cold.
Last edited by CBVLS6; 12-29-07 at 07:08 PM.
|
12-29-07, 06:56 PM
| | Cadillac Owners Fanatic Cadillac(s): LS6 CTS-V | | Join Date: Jun 2007 Location: Montgomery, Al. Age: 26 | | | Re: Left header clicking?
Quote:
Originally Posted by The Tony Show ^ Ditto. I'm inclined to think mine's a warped header flange after reading all the people who have this problem, but I can't pinpoint the leak even on a lift.
Question: Does yours make a "clacking" sound under wide open throttle? When I hit 4k under WOT, I get a lovely "bbbbbRRRRRRRRRRRRR RAT TAT TAT TAT TAT TAT" noise. It sounds like a damn dragster running open headers. | I'm starting to think that If I cant find the leak then it muct be coming from somewhere I cant see... Like the collector... There could be a crap weld on the collector on the inside and it could be leaking and I would never be able to see it.. This is where I think I am getting the leak from.
My car is pretty quiet except it sounds like a tractor at real low rpms.. My magnaflow is a pretty mellow low tone. |
12-29-07, 10:46 PM
|  | Mods on hold till diff gets fixed. Cadillac(s): 2005 CTS-V | | Join Date: Jan 2005 Location: South Lyon, MI Age: 60 | | | Re: Left header clicking?
Assuming you did install gaskets with the headers (you did, didn't you?), and you've checked out the flange real well, I think the collector is highly suspicious as you and others have already mentioned.
What a pain in the butt! Hope you get this resolved, 'cause you're gonna love 'em.
__________________
'05 CTS-V, Stealth Gray, Sunroof, 3M Clear Bra, B&M Shifter w/UUC Bushings, Specter Werkes Bushings, V Headrests, Wheel To Wheel Powertrain Tune, Corsa, Kooks w/Hi-Flo Cats, Ultimate Grid Pedals, Hotchkis Anti-Sways, STS-V Fogs, Ground Control 650R/600F, WW Clear Sidemarkers, Full-Size Spare, Magnuson SC Polished, CTS Console, FG2, Aggressive Street Alignment, MOMO Shift Knob, DSS/Hendrix Engrg Axles, UUC Flywheel. Soon: UUC MMs. 472 RWHP/411 RWTQ (Mustang dyno). |
12-29-07, 11:40 PM
| | Cadillac Owners Fanatic Cadillac(s): LS6 CTS-V | | Join Date: Jun 2007 Location: Montgomery, Al. Age: 26 | | | Re: Left header clicking?
Quote:
Originally Posted by rand49er Assuming you did install gaskets with the headers (you did, didn't you?), and you've checked out the flange real well, I think the collector is highly suspicious as you and others have already mentioned.
What a pain in the butt! Hope you get this resolved, 'cause you're gonna love 'em. | ...you mean I was supposed to install those 
lol. Yea I installed them.
Question is.. Why am I throwing a code? |
12-29-07, 11:45 PM
| | Cadillac Owners Member Cadillac(s): 05 maggied CTS-V, 03 maggied Z06 | | | | | Re: Left header clicking?
You could throw a code because of an air leak (most likely) or you haven't let the new cats condition themselves enough and your hitting WOT.
My first suggestion is get the rear sensors turned off. | | Cadillac Discussion Tools | | | 
Cadillac Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off
Censor is OFF | | | |
|
