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-   -   ticking sound (https://www.scionlife.com/forums/scion-tc-1g-forced-induction-1645/ticking-sound-203051/)

Carlanga 05-15-2011 03:50 PM

ticking sound
 
Started yesterday, the day before she was running awesome and quiet other than the new toilet tank sound from the new fuel regulator I got installed.
Yesterday I decided to cut the grass and pulled the car out of the garage by just pushing it out, but somehow left the car with the ignition in the on position for the whole two hours I was doing yard work. Battery died and had to jump it with the wifes tC, then immediately after start up it got the ticking sound like a diesel engine.

The sounds is only there during idle and acceleration, when decelerating it completely disappears. If I pop the hood to take a look I can't hear anything, it's more obvious when I'm in the cabin. Is there anything that could get fried from being on for two hours? VSV, injectors, etc. Just plain weird, thanks in advance.

brett561tc 05-15-2011 03:54 PM

does the speed of the ticking increase with the speed of the engine?

brett561tc 05-15-2011 04:04 PM

try replacing the battery with your wifes battery. i think that the relay will start ticking when the battery has a low charge. if that fixes the sound the just grab a new battery.

brett561tc 05-15-2011 04:06 PM

also check the main relay fuse.

Carlanga 05-15-2011 04:13 PM

yes it does brett, I'll try swapping batteries and if that doesn't do it I'll try her relay. I drove 40 miles to work this morning and it still had it, I'll try that stuff tomorrow once I get home. Thanks bro!

crush02342002 05-15-2011 11:06 PM

if your off today bro bring it by

Carlanga 05-15-2011 11:35 PM

Oh man, I'm at work. If I do swing by it will be Tuesday, wifey is off that day.

BTW, thanks again for the the -6 bro, I called up Dezod and the fitting is on it's way.

crush02342002 05-15-2011 11:41 PM

sweet.

ElevationTC 05-16-2011 09:07 PM

updates?

Carlanga 05-17-2011 04:09 AM

not really an update, I didn't have the time to work on her today. One thing I did was to try to pinpoint the location of the sound and it seems it's only audible from the cabin. The new fuel line feeding the fpr was resting against the firewall, maybe that could be the culprit. I grabbed a tool and rest it against the line and it seems to have a really strong pulsation. Wondering if it's just the injectors causing it and the line is just transferring the noise thru the firewall.

I'm gonna try isolating it tomorrow and listen for any changes. It's possible that the plastic dampener before the fuel rail did serve a function after all. FYI I have the pressure set at 58psi (base) on 700cc Deatschwerks.

Carlanga 05-21-2011 03:08 AM

battery and relay good to go and still has the wore out head sound. Which relay is the one that you refer to? IGN?

crush02342002 05-21-2011 10:54 AM

hey bro you busy this weekend?

Carlanga 05-22-2011 01:58 AM

at work now, will be back tomorrow morning. KK works, but I'll be free after 3:30. Let me know what u got planned.

P.S. Got the fitting

crush02342002 05-22-2011 09:31 AM

cool...im just about finished on that xrs...gonna try and do some tuning tommarow. all i gotta do is wire up a bunch of stuff...just thought you'd like to get out of the hezzy for a bit and hang out.

pioneer1976 11-08-2011 03:58 AM

any updates on this ive been having the same thing for a couple weeks

crush02342002 11-08-2011 09:17 AM

it was the fpr and the location of it made it seem louder

Carlanga 11-08-2011 02:50 PM

I kinda ruled it out as the injectors after all Chris, whenever I initially descelerate and the injectors close/turn off it goes away. Maybe if I was able to drop at least 20psi of fuel pressure, it might go away. Come to think of it when I initially installed the setup I had it set at 45-50, I don't remember hearing any ticking that night.

crush02342002 11-08-2011 05:27 PM

I thought we wher able to quit it down some with shimming the fpr with those foam pieces?

Carlanga 11-08-2011 09:42 PM

Nah

Btw, how u've been man?

crush02342002 11-09-2011 01:19 AM

iv been...got back from the dyno yesterday...ok numbers...nothing special.

DeAnzaJig 11-13-2011 06:03 PM

Where is your vsv mounted?

crush02342002 11-13-2011 07:07 PM

Trust me it has nothing to do with the vsv. But we know about the noise that can be created if you mount the vsv to the fire wall, little bastard gets amplified. Lol

DeAnzaJig 11-14-2011 02:00 AM

Yea that was the first thing that came to mind over the Internet lol

crush02342002 11-14-2011 03:11 AM

I hear ya


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