Weird sound when throttling after foot is off the pedal - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

VincentN · 10-08-2017, 06:06 PM

So I've had my car for about 7 months and even after a few months of owning it there's this weird sound that I hear when I let off the throttle and apply it again? So it sounds almost as like there's something rattling, but at the same time there isn't, almost like a lugging engine sound but also not quite exactly it either. From 3rd-6th gear when I'm coasting and you'll hear it once you start accelerating again, whether if it's a light or aggressive throttle.

Also starting from 1st gear, I sometimes hear that my engine seems like it's about to stall but it's already moving, is there any other tips as to help me off in starting it off without hearing that noise, nor to jerk the car ?

humfrz · 10-08-2017, 06:28 PM

Hello VincentN and welcome to ......... the forum .......

Standard question ....... do you have any power mods .. ??

If not, the sound you hear could be the throttle body just doing its thing ....

Many folks will be along shortly ....... with guesses anywhere from "it's normal" to "the engine is about to blow".

Stay tuned ......

humfrz

VincentN · 10-08-2017, 06:37 PM

Quote:

Originally Posted by humfrz

Hello VincentN and welcome to ......... the forum .......

Standard question ....... do you have any power mods .. ??

If not, the sound you hear could be the throttle body just doing its thing ....

Many folks will be along shortly ....... with guesses anywhere from "it's normal" to "the engine is about to blow".

Stay tuned ......

humfrz

No mods at all, other than coilovers. It's bone stock, so let them comment on the engine. There's like absolutely nothing on it, throttle body? I was told it may be loose? I've asked a few other guys about having the same sound, but no luck, so I'm a little concerned.

Somerandom18 · 10-08-2017, 06:48 PM

Totalled. Part out. How much for your wheels?

Sent from my Pixel XL using Tapatalk

ls1ac · 10-08-2017, 06:55 PM

Need to know RPM.
A video showing tack with sound would help.

VincentN · 10-08-2017, 07:35 PM

Quote:

Originally Posted by ls1ac

Need to know RPM.
A video showing tack with sound would help.

Anywhere between 2500-3500 sometimes 4000.

SLVRSRFR · 10-10-2017, 02:59 PM

I think I have this same thing happening sometimes...

I think.

srt4evah · 10-23-2017, 12:16 PM

Search for "throttle tip in knock". Mine's doing it too, hopefully when the OFT arrives today the new tune will clear that up.

10-08-2017, 06:06 PM	#1
VincentN Junior Member Join Date: Oct 2017 Drives: 2017 Limited Location: Toronto Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Weird sound when throttling after foot is off the pedal So I've had my car for about 7 months and even after a few months of owning it there's this weird sound that I hear when I let off the throttle and apply it again? So it sounds almost as like there's something rattling, but at the same time there isn't, almost like a lugging engine sound but also not quite exactly it either. From 3rd-6th gear when I'm coasting and you'll hear it once you start accelerating again, whether if it's a light or aggressive throttle. Also starting from 1st gear, I sometimes hear that my engine seems like it's about to stall but it's already moving, is there any other tips as to help me off in starting it off without hearing that noise, nor to jerk the car ?

10-10-2017, 02:59 PM	#7
SLVRSRFR Senior Member Join Date: Aug 2014 Drives: 2013 BRZ 6MT, 2007 WRX Wagon 5MT Location: Caledon, Ontario Posts: 1,332 Thanks: 582 Thanked 534 Times in 377 Posts Mentioned: 10 Post(s) Tagged: 2 Thread(s)	I think I have this same thing happening sometimes... I think. __________________ @bpennerz

10-23-2017, 12:16 PM	#8
srt4evah Initial G Join Date: Aug 2012 Drives: 13 FR-S, 15 BMW 228i Location: Austin, TX Posts: 122 Thanks: 12 Thanked 55 Times in 31 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Search for "throttle tip in knock". Mine's doing it too, hopefully when the OFT arrives today the new tune will clear that up. __________________ 2013 FR-S 2015 BMW 228i

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10-08-2017, 06:28 PM	#2
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 30,409 Thanks: 29,794 Thanked 32,812 Times in 16,830 Posts Mentioned: 715 Post(s) Tagged: 2 Thread(s)	Hello VincentN and welcome to ......... the forum ....... Standard question ....... do you have any power mods .. ?? If not, the sound you hear could be the throttle body just doing its thing .... Many folks will be along shortly ....... with guesses anywhere from "it's normal" to "the engine is about to blow". Stay tuned ...... humfrz

10-08-2017, 06:48 PM	#4
Somerandom18 Senior Member Join Date: Sep 2016 Drives: 2017 manual BRZ Location: USA Posts: 467 Thanks: 322 Thanked 178 Times in 111 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Totalled. Part out. How much for your wheels? Sent from my Pixel XL using Tapatalk

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