where is the sound coming from?

**lefty12** · 07-12-2006, 09:34 AM

Hi all Celica owners, glad I found this forum.

Everytime I take my foot off the accelerator pedal (no downshift), there's a loud hum/vibration. Doesn't happen in neutral or when clutch is depressed.

01 GTS manual

Any of you guys seen this?

Thanks!

**Arabian_Knight** · 07-12-2006, 10:05 AM

very hard to tell what u meen, when u take your foot of the accelrator vibrations will occur depending on your rpm..you need to try to be more specific

**Ratko** · 07-12-2006, 10:19 AM

yeah, what RPM are you at when this happens. i knew a Matrix owner (same GTS engine) who had that vibration whenever he was over 3500 rpm. basically the dash would begin to vibrate/rattle, and the car was still under warantee. he ended up selling it eventually because Toyota told him "dont take it over 3500rpm". i hope thats not the same issue you are having.

**lefty12** · 07-12-2006, 10:26 AM

Doesn't matter what speed or rpm.
I read somewhere that its the dampering shield ( I don't know what that is or even if it has one) that has given way. Any of you heard of this?
Everything else is great.

**lefty12** · 07-12-2006, 10:29 AM

The vibrations are slight but heavier than most other cars I've driven but the hum is loud.

**Ratko** · 07-12-2006, 10:37 AM

how many miles on the odometer?

**lefty12** · 07-12-2006, 10:43 AM

**wil_wil2** · 07-13-2006, 09:10 PM

All it sounds like is engine braking, which is nothing bad. To correct/adjust engine braking you can any/all of the following, adjust timing, adjust injector spray, adjust the valves. It is most likely that all is needed is adjustment of your valve-train which is very easy.

**lefty12** · 07-14-2006, 02:29 PM

Thanks! I'll give it a shot

**lefty12** · 07-25-2006, 10:02 AM

Took it to the Toyota dealer. Told the service about this problem.
The service guy said he doesn't know about manual transmissions.

AWESOME!!!!

Case yet to be resolved.

**Ratko** · 07-25-2006, 10:09 AM

"he doesn't know about manual transmissions."

what?!

that's like a medical doctor telling you that he doesn't know how to read a pulse.

have you tried a different dealer?

**lefty12** · 07-25-2006, 10:35 AM

No shit!!!

Yeah, looking around for a different dealer.

**Patton191** · 07-30-2007, 04:32 AM

Hey, im new here but what it could be( this was the case with my celica). There is a latch made of metal on the bottom of the car near the muffler there should be one on the opposite side also but dont worry about that. Anyway the muffler was actually rattling agains the metal. My dad and I figured that the metal part was to latch the car down when it was coming over on the barge from japan because its a hook and its on all four corners. What i suggest doing is getting someone to watch your car as it idles with you in it watch the muffler and see if its rattling against that metal. We unscrewed it and it sounds great now.

Hope that fixes it goodluck

07-12-2006, 09:34 AM	#1 (permalink)
lefty12 Location: Michigan Posts: 7 Join Date: Jul 2006 Last On: 07-25-2006 10:35 AM	where is the sound coming from? Hi all Celica owners, glad I found this forum. Everytime I take my foot off the accelerator pedal (no downshift), there's a loud hum/vibration. Doesn't happen in neutral or when clutch is depressed. 01 GTS manual Any of you guys seen this? Thanks!

07-12-2006, 10:05 AM	#2 (permalink)
Arabian_Knight AK47 Location: Richmond Hill Posts: 3,800 Join Date: May 2005 Last On: 02-09-2008 01:14 AM Vehicle: G35 Coupe 6MT 2nd Vehicle: Swapped 5th gen	very hard to tell what u meen, when u take your foot of the accelrator vibrations will occur depending on your rpm..you need to try to be more specific __________________

07-12-2006, 10:43 AM	#7 (permalink)
lefty12 Location: Michigan Posts: 7 Join Date: Jul 2006 Last On: 07-25-2006 10:35 AM	40k

07-30-2007, 04:32 AM	#13 (permalink)
Patton191 Location: dafdf Posts: 2 Join Date: Jul 2007 Last On: 07-30-2007 09:27 PM	Re: where is the sound coming from? Hey, im new here but what it could be( this was the case with my celica). There is a latch made of metal on the bottom of the car near the muffler there should be one on the opposite side also but dont worry about that. Anyway the muffler was actually rattling agains the metal. My dad and I figured that the metal part was to latch the car down when it was coming over on the barge from japan because its a hook and its on all four corners. What i suggest doing is getting someone to watch your car as it idles with you in it watch the muffler and see if its rattling against that metal. We unscrewed it and it sounds great now. Hope that fixes it goodluck

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07-12-2006, 10:19 AM	#3 (permalink)
Ratko it was all a dream Location: Toronto, Canada Posts: 9,863,211 Join Date: Oct 2003 Last On: 07-18-2008 09:59 AM Vehicle: 91 MR2 Turbo 2nd Vehicle: 96 Civic Hatch	yeah, what RPM are you at when this happens. i knew a Matrix owner (same GTS engine) who had that vibration whenever he was over 3500 rpm. basically the dash would begin to vibrate/rattle, and the car was still under warantee. he ended up selling it eventually because Toyota told him "dont take it over 3500rpm". i hope thats not the same issue you are having.

07-12-2006, 10:26 AM	#4 (permalink)
lefty12 Location: Michigan Posts: 7 Join Date: Jul 2006 Last On: 07-25-2006 10:35 AM	Doesn't matter what speed or rpm. I read somewhere that its the dampering shield ( I don't know what that is or even if it has one) that has given way. Any of you heard of this? Everything else is great.

07-12-2006, 10:29 AM	#5 (permalink)
lefty12 Location: Michigan Posts: 7 Join Date: Jul 2006 Last On: 07-25-2006 10:35 AM	The vibrations are slight but heavier than most other cars I've driven but the hum is loud.

07-12-2006, 10:37 AM	#6 (permalink)
Ratko it was all a dream Location: Toronto, Canada Posts: 9,863,211 Join Date: Oct 2003 Last On: 07-18-2008 09:59 AM Vehicle: 91 MR2 Turbo 2nd Vehicle: 96 Civic Hatch	how many miles on the odometer?

07-13-2006, 09:10 PM	#8 (permalink)
wil_wil2 Location: Borden, Saskatchewan Posts: 764 Join Date: Feb 2006 Last On: 01-27-2007 03:16 PM Vehicle: 1968 C10 2nd Vehicle: 1989 Accord	All it sounds like is engine braking, which is nothing bad. To correct/adjust engine braking you can any/all of the following, adjust timing, adjust injector spray, adjust the valves. It is most likely that all is needed is adjustment of your valve-train which is very easy.

07-14-2006, 02:29 PM	#9 (permalink)
lefty12 Location: Michigan Posts: 7 Join Date: Jul 2006 Last On: 07-25-2006 10:35 AM	Thanks! I'll give it a shot

07-25-2006, 10:02 AM	#10 (permalink)
lefty12 Location: Michigan Posts: 7 Join Date: Jul 2006 Last On: 07-25-2006 10:35 AM	Took it to the Toyota dealer. Told the service about this problem. The service guy said he doesn't know about manual transmissions. AWESOME!!!! Case yet to be resolved.

07-25-2006, 10:09 AM	#11 (permalink)
Ratko it was all a dream Location: Toronto, Canada Posts: 9,863,211 Join Date: Oct 2003 Last On: 07-18-2008 09:59 AM Vehicle: 91 MR2 Turbo 2nd Vehicle: 96 Civic Hatch	"he doesn't know about manual transmissions." what?! that's like a medical doctor telling you that he doesn't know how to read a pulse. have you tried a different dealer?

07-25-2006, 10:35 AM	#12 (permalink)
lefty12 Location: Michigan Posts: 7 Join Date: Jul 2006 Last On: 07-25-2006 10:35 AM	No shit!!! Yeah, looking around for a different dealer.

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