Weird Noise On Deceleration
 

Hey guys ive had this frs for about 4 years now its manual and recently it started making a weird sound from under the car to the back end similar to a grinding sound but it only makes it when im in gear and foot not on the gas. Mainly in 1st, 2nd, 3rd Gear the higher ones it barely makes any sound and when the car is hot its almost non existent. When im in neutral the sound is still there but very quiet. any ideas ?

Might want to jack it up and take a closer look, you won't really know until you thoroughly inspect the suspected area.

The "grinding sound" makes me suspect that it may be your TOB but since you said it's near the back, I'd say check your rotors/brake pads? Is the car modified? Was there anything changed recently?

only bolt ons really but nothing recent. i was thinking it was my brakes because they are overdue for being changed. it only really happens when engine braking as well but the sound doesnt come from the engine bay

Try inspecting them to see how much life is left on the pads.

Depending on how many miles are on those pads and how hard you drive your car, it may be time to get them replaced.
You could also swap out the old rotors too since you're already there. :iono:

do you think theres any chance they would be the cause of that sound ?

They could be but you won't know for sure without taking a look at them first.

If it only makes it in gear, it sounds like a transmission or differential problem. Maybe backlash out of adjustment?

I'm voting throw out bearing

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https://drive.google.com/file/d/1cN7...ew?usp=sharing

thats only in second gear just on gas and off gas

good ol' TOB

File isn't public just so you know :cheers:

https://drive.google.com/file/d/1cN7...ew?usp=sharing

how about now ?

Good to go!

any idea what that sound is lol ?

No clue LOL.

I'm sure someone will chime in with it. I'm afraid the answer will be throw out bearing but we'll see.

Yeah - I'm back to thinking TOB. Unfortunately it's a known weak point on the earlier cars.

It's a weak point on all of 'em. Does the sound change when you tap the clutch pedal?

Not brakes. Periodicity is too high. Sounds like the driveshaft is rubbing on something.

when i tap the clutch no but when i throw it in neutral it quiets down. only when engine braking though when im on the gas or shifting gears it doesnt make a sound. and when the car is hot it also goes away. im stumped

plus i already replaced the clutch and TOB about 20k miles ago

20k miles is prob halfway thru the TOB life expectancy on these cars lol

Well, shit.

I didn't think it sounds like TOB. Engine braking is key. It sounds more like thin sheet metal rub/vibe. Engine/trans, all of it forward of the mid-pipe (articulating donut gasket thingy) tweaks a little bit under torque. I'd poke around there looking for something loose.

will do ill have to jack it up and see. thats why i initially thought brakes.. sounds like somethings rubbing or scraping while engine braking

Any luck finding out what this was ? I have basically had the same ever since I replaced the OEM TOB with a stage 1 exedy clutch. I have noise while engining braking in the 5th, a little less in 4th and least in 1st. Goes away in neutral

Last post was from 04-29-2021 01:17 PM
Last Activity: 05-03-2021 06:48 AM

Think your SOL asking them.