buzz / rattles between certain RPMs during quick acceleration

[highway7]

Originally Posted by ermax

All my fluid leaked before it left the factory... is that a problem? Hahaha

Lemon Law

[howareyoukk]

UPDATE 4: Hi guys I think I am paranoid..so basically I walk pass the dealership every day after work and When I was passing the dealership today, I did not see the car that I test drove and I started wondering is it POSSIBLE that they somehow realised it was indeed a problem, instead of being a vehicle characteristic and they decide to check the demo car (the one I test drove), hence its gone, and not mine, since its a used model and I did not purchase from them.

In other words, is it possible that tried to comfort me and ultimately get rid of me by letting me test drive a demo car that has the same noise, but they realised its a problem and took away the demo car and fixed it

[Overdrive]

Anything is possible, best not to get that paranoid and worried about it. If you're concerned about something like that, bring it to a different dealer.

[Tcoat]

Originally Posted by howareyoukk

UPDATE 4: Hi guys I think I am paranoid..so basically I walk pass the dealership every day after work and When I was passing the dealership today, I did not see the car that I test drove and I started wondering is it POSSIBLE that they somehow realised it was indeed a problem, instead of being a vehicle characteristic and they decide to check the demo car (the one I test drove), hence its gone, and not mine, since its a used model and I did not purchase from them.

In other words, is it possible that tried to comfort me and ultimately get rid of me by letting me test drive a demo car that has the same noise, but they realised its a problem and took away the demo car and fixed it

Or maybe they just sold it? Car dealers tend to sell the cars on the lot.

[howareyoukk]

Originally Posted by Tcoat

Or maybe they just sold it? Car dealers tend to sell the cars on the lot.

Yeah thats what I thought as well. it would be a hot sale if thats the case, since I test drove the car on a Friday and the dealership only opened till 1:00pm on Saturday and it closed on Sunday. And the car was gone on Monday...

Sorry for being irritating at this point but after doing some further readings on multiple forums tonight, I have found a video linked to a post, where it showcased my exact problem. It almost looked like I was the one who videotaped the issue myself ! unfortunately the person who started the post & video did not seem to find a solution from either youtube or the forum.

[ame="https://www.youtube.com/watch?v=gcvI-anyCX4&list=WL&index=155"]Frs engine problem - YouTube[/ame]

engine pining perhaps? I would also like to meet up with my local 86 group asap and see if I have the chance of test driving one of their 86's with AT. Either way I am pretty keen on finding out the cause of the rattles, whether its an abnormal behaviour with this car or not..I think I suffer from OCD syndrome....

[Tcoat]

Vacuum pump.


http://www.ft86club.com/forums/showt...=107577&page=3

[humfrz]

Well, I'll go back to my first thoughts that something is vibrating when the engine is under load that is causing that vibration sound.

What I would do is to take my car up to the local automotive shop and request the oldest mechanic they have to take a ride with me and let him hear the noise.

Then suggest he put it on a rack and pound around the undercover panels with a rubber mallet to see if he can duplicate the noise. If not, take off the front under panel and bang around the exhaust heat shield with the rubber mallet ..... then do the same with the rest of the exhaust system.

Betcha he can find out what is making the sound ......... then take a crowbar to that piece and push it over.

WOW! ....... how hi tech ........


humfrz

[howareyoukk]

Originally Posted by humfrz

Well, I'll go back to my first thoughts that something is vibrating when the engine is under load that is causing that vibration sound.

What I would do is to take my car up to the local automotive shop and request the oldest mechanic they have to take a ride with me and let him hear the noise.

Then suggest he put it on a rack and pound around the undercover panels with a rubber mallet to see if he can duplicate the noise. If not, take off the front under panel and bang around the exhaust heat shield with the rubber mallet ..... then do the same with the rest of the exhaust system.

Betcha he can find out what is making the sound ......... then take a crowbar to that piece and push it over.

WOW! ....... how hi tech ........


humfrz

thats what I thought as before test driving a demo car, perhaps a 2016 or 2017 demo model, at the Toyota dealership and it was making the same rattle under the same conditions. I am confused. this rattling noise is harder to solve than my engineering exams in university.

[humfrz]

Originally Posted by howareyoukk

thats what I thought as before test driving a demo car, perhaps a 2016 or 2017 demo model, at the Toyota dealership and it was making the same rattle under the same conditions. I am confused. this rattling noise is harder to solve than my engineering exams in university.

Ahhh .......haaaaa ......... NOW, we are getting the ....... rest of the story ......

I'm ah feared you are over engineering the problem ......... it's a simple rattle ....... NOT a complex piece of rocket engineering .......


humfrz

[howareyoukk]

Originally Posted by humfrz

Ahhh .......haaaaa ......... NOW, we are getting the ....... rest of the story ......

I'm ah feared you are over engineering the problem ......... it's a simple rattle ....... NOT a complex piece of rocket engineering .......


humfrz

lol even with engineering I had survived the course aka graduated.

[howareyoukk]

Originally Posted by jbsali

I'm taking my car in for a transmission inspection this saturday based on almost the same noise. I'm expecting it to be a "normal" thing but want it checked out before my BRZ goes OOW.

I suspect its my flywheel that rattles. its odd though because its most noticeable at lower rpms, clutch not pressed. When the fans kick in, its more audible too.

How did your case go?

[humfrz]

Originally Posted by howareyoukk

lol even with engineering I had survived the course aka graduated.

humfrz

[howareyoukk]

Update 5: solved the problem by plugging the sound tube from a reply suggested by a member of the forum, though I am still not sure what caused the rattle. The person gave me the advice called it a normal sound.

http://www.ft86club.com/forums/showthread.php?t=118348

[Tcoat]

Originally Posted by howareyoukk

Update 5: solved the problem by plugging the sound tube from a reply suggested by a member of the forum, though I am still not sure what caused the rattle. The person gave me the advice called it a normal sound.

http://www.ft86club.com/forums/showthread.php?t=118348

Yep. The sound tube is a glorified kazoo and the noises it creates are more annoying than anything.
Check your intake filter. I had a dry leaf that got sucked up in there that made the most bizarre (and absurdly loud) buzzing noise which baffled me for days.