tapping sound coming from engine - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

forgotten93 · 12-22-2013, 10:01 PM

there is a non constant tapping sound i think coming from one of my valves. i have brought it to Toyota and Subaru and they don't know what it is. the tapping comes and goes. i can only hear it at idle cause i have a exhaust and cant hear anything over it.

forgotten93 · 12-22-2013, 10:09 PM

i cant figure out how to post a video but i know how on fb so here u go
https://www.facebook.com/photo.php?v...10404907528883
https://www.facebook.com/photo.php?v...58253301708999
https://www.facebook.com/photo.php?v...49142489335087

kALMIGHTY · 12-22-2013, 10:28 PM

Ask a mechanic to take a look at the flux capacitor. That's probably where the noise is coming from.

humfrz · 12-22-2013, 10:43 PM

Hi forgotten93 .....

It could be the HPFP (High Pressure Fuel Pump) trying to do it's "cricket" thing...??

I could be a normal sound that an engine makes ..??

I wouldn't worry about it .... unless it gets louder.

humfrz

forgotten93 · 12-22-2013, 11:25 PM

i put a turbo on it and change the injectors and fuel pump and it still makes the noise

husker741 · 12-22-2013, 11:30 PM

Quote:

Originally Posted by kALMIGHTY

Ask a mechanic to take a look at the flux capacitor. That's probably where the noise is coming from.

Swing and a miss.

humfrz · 12-23-2013, 01:44 AM

Quote:

Originally Posted by forgotten93

i put a turbo on it and change the injectors and fuel pump and it still makes the noise

A turbo .. ?? Did I miss something .. ??

With that "exhaust" of yours, it's a wonder you can hear anything ....

humfrz

Anorexic 86 · 12-23-2013, 05:36 AM

Quote:

Originally Posted by forgotten93

i put a turbo on it and change the injectors and fuel pump and it still makes the noise

These cars have 2 fuel pumps.... one is in the gas tank and another high pressure unit under the hood, which is know to make chirping/ticking noises sometimes.

rskdsk · 12-23-2013, 05:51 AM

I had the same issue ... I took it back to the dealership and three days later I was driving a new FR-S. The dealership did not know what is was, but knew I would be a pain in the ass and figured a buy-back and replacement was in order.

Now I understand that it has something to do with the fuel pump and is normal.

forgotten93 · 12-23-2013, 07:56 AM

Can it chirp and tick at the same time like that and its when ever it want to, I had the dealer replace the one in the engine already but they replaced it with a louder chirping one

Gen · 12-23-2013, 09:49 PM

Most likely the injectors. They are very loud at idle (particularly after market ones), but quiet up when you start moving. Completely normal.

forgotten93 · 12-23-2013, 09:54 PM

It happens when its warmed up too

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12-22-2013, 10:28 PM	#3
kALMIGHTY Banned Join Date: Nov 2012 Drives: TRD Ultramarine '13 Location: Calgary Posts: 1,377 Thanks: 190 Thanked 766 Times in 347 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Ask a mechanic to take a look at the flux capacitor. That's probably where the noise is coming from.

12-22-2013, 10:43 PM	#4
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 30,007 Thanks: 29,011 Thanked 32,086 Times in 16,526 Posts Mentioned: 709 Post(s) Tagged: 2 Thread(s)	Hi forgotten93 ..... It could be the HPFP (High Pressure Fuel Pump) trying to do it's "cricket" thing...?? I could be a normal sound that an engine makes ..?? I wouldn't worry about it .... unless it gets louder. humfrz

12-23-2013, 05:51 AM	#9
rskdsk Member Join Date: Sep 2013 Drives: series 10 FR-S (2361) Location: Cape Coral, FL Posts: 88 Thanks: 1 Thanked 57 Times in 18 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I had the same issue ... I took it back to the dealership and three days later I was driving a new FR-S. The dealership did not know what is was, but knew I would be a pain in the ass and figured a buy-back and replacement was in order. Now I understand that it has something to do with the fuel pump and is normal.

12-23-2013, 09:49 PM	#11
Gen Senior Member Join Date: Jun 2012 Drives: Scion FR-S Location: Under a rock Posts: 1,060 Thanks: 75 Thanked 552 Times in 270 Posts Mentioned: 39 Post(s) Tagged: 0 Thread(s)	Most likely the injectors. They are very loud at idle (particularly after market ones), but quiet up when you start moving. Completely normal.

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