1G Slight grind on deceleration (fwd)

[gpopppa]

Ok, so i been having this problem for over a month now, posted a few different threads, One issue was my clutch fork, replaced that and still the same thing.

THE ISSUE- I was on the freeway and got onto the off ramp, stopped at a light and took off. upon slowing down at another light i hear this slight grinding sound, like metal on metal but its intermediate. Its speed variable, but don't hear it under 10 mph. It happens in gear,in neutral, and coasting with the motor off. It doesn't make the sound while accelerating, just when off the gas and also engine off coasting.

I've looked hours over numerous threads,but still nothing describing anything like this. The clutch was replaced 1200 miles ago, but its oem spec. This noise happened out of the blue and is annoying the hell out of me. Hopefully someone can give me any info.

I will try and get my "onboard cam" setup under neath to hear what im talking about.

Its not the throwout bearing, clutch springs, pivot ball, clutch fork, tierods. I couldnt move the wheels so im pretty sure its not the wheel bearings, or balljoints. Turbo looked fine.no play in or out or up and down. axles were replaced about 6 months ago, Same with front and back motor mounts. When i had the tranny out the drive shaft thing had no in out movement nor up and down so that seemed fine. Please help!!!!!!!!!!!!!!

 

[robtheturbopric]

i know this might sound dumb but how are the breaks. is it possible you have a caliper that's not fully retracting and causing the break pads to drag under certain conditions? and dose the sound change when you apply the brakes?

 

[Gstclipse69]

Hmmm... This scenario sounds a lot like a problem I am having and have yet to figure out. Check this thread out I started and see if your symptoms are like mine. From your description it sounds similar.
http://www.dsmtuners.com/forums/handling-tech/399641-slight-grind-rub-after-clutch-install.html
I thought I had it figured out, and it was the axle because of the clicking it was doing; but I just replaced the front passenger axle and no change. I'm stumped.

 

[gpopppa]

Ok so to theturbopric... The brakes seem fine. I mean I havent changed them out, been limited on cash since the damn clutch went out. But when i have one side jacked up and spin the tire it does have just a little resistance.I am not ruling out the brakes quite yet, since it did happen after putting the brakes on off the freeway. The dust shields are good as well. And pretty sure the sound is still there while braking.Not 100 percent sure, maybe 86.

And Gstclipse69, Almost exactly like that but it happens with the car in gear,in neutral, and motor shut off while coasting.New fork, and tob lubed at the correct points. I do however have a pretty worn out flex pipe,I think its broken within, But im pretty sure its not rubbing on the drivers axle,couldnt see any visual signs,but since I haven't put on more then a mile on it since it started happening, maybe when I let off the gas,its bending it up just slightly to rub. Im just going to have to get a video up somehow, Ill try it tomorro. Thanks for the suggestions so far.

Im just hoping its that 1 in a million odd sounding wheel bearing thats going out.

 

[gpopppa]

Ok I know its been a while since I said I was going to get a video up, Didn't know how to do it on here so here's a link to the youtube . unknown 91 talon tsi fwd sound - YouTube

 

[bertrenolds]

Probably one of 2 things, hopefully it's a cv joint in your half shaft going out. Hopefully it is not the transmission gears grinding, sounds like my tranny did and when I opened up the case it was destroyed. Jack the car up and put it in nutral and turn the tires and see where the sound is comming from exactly.

 

[gpopppa]

Thanks for the reply, I did that last week, it sounded like the rotors and the dust shield, so I grabbed a wire brush and brushed away all the rust and road particles. Bent the shields out far enough to where they wont rub. Had a decent pile of rust n stuff from each side. They felt a lot better when i rotated them but yet the sound is still there.

I would like to say its more on the driver side than the passenger side. The thing that is confusing me is the sound is there when the motor is off,in neutral and coasting. Is there any rotation going on with the clutch disc or flywheel while in neutral coasting,with the car off? If not then wouldn't that sorta rule out having anything to do with the clutch itself?

And that you mention the half shaft,as in the passenger side? If so,wouldn't there be a constant clicking and not just on decel? I was under the car looking at everything that could be rubbing but couldn't see anything/ Thanks for the reply's so far.

 

[bertrenolds]

IT sounded like a clicking sound to me and half-shafts can only click when you turn and maybe on decel but the more I think about it, it could be your wheel bearings. Like I said, lift the car up again with it off and put it in nutral and rotate a tire and see if the sound is comming from the half-shafts or the tranny, hopefully you can move the tires if you have an awd with the back tires still on the ground, I am guessing you can. Isolate where the sound is comming from then everyone here can be of more help.

Shit your in burnsville,mn! There are plenty of people that could help you out around here, you live 5min from me. If I ever get some time, maybe this weekend I could have a look at it. I've been working and trying to get my car back on the ground but my stupid intermediate shaft won't line up damit!

I listened to it again and I am going to say maybe your tranny is fu-bard since it's a FWD and wheel hop kills them. I know since I just destroyed my tranny.

 

[gpopppa]

Yea, after i replied to your reply i noticed your in savage. Yea it is a fwd, And with 230,000 miles on the body,knowing that the motor only has 35,000, i would assume that the tranny is about to go at anytime. I am sure the previous owners beat the crap out of it, considering it came with two sets of BALD tires,and broken motor mounts. I did however find a couple trannys up in cambridge, But im not sure what they came out of.

I took it out again tonight since the traffic died out a little, and noticed the sound changes a little when i shift into gears,like it gets a little louder. So im assuming that it does have something to do with the tranny.

 

[bertrenolds]

More then likely the tranny, does the sound get quieter when you accelerate? And then get louder when you are coasting and decellarating? If so it's the tranny. Also there are a few trannys on mitsustyle, our local DSM forum. I found a used one for $100 I believe, I went with the 90 that had been rebuilt 7000miles before the guy broke a spline off in it. It bench shifted fine so my fingers are crossed.

 

[gpopppa]

Yea no noise when accelerating,or idle, only when coasting or letting off. Im trying to get a hold of this guy to see what trannys they were from. Hopefully theyll be from a 1g.Ill keep this updated!

 

[talontd92tsi]

Have you considered that it could be a bad wheel bearing?

 

[bertrenolds]

That's what I also thought it could be, Gpoppa if you wan't I could stop over and take a look and let you know if it's the tranny or a wheel bearing or a half shaft. It's usually a good idea to know whats wrong before you go buying new trannys for it.
And did you try getting one off someone on mitsustyle? I can send you dudes info that had the tranny for $100 that had 100,000 on it, maybe not the best idea to throw such a used tranny on but for $100 I guess who cares althought it does take a little work.

 

[gpopppa]

I have considered a wheel bearing, but with a bad wheel bearing the wheels would have some movement right? And bert, I have mondays,and tuesdays off. all the other days I work down in hastings, If I cant figure it out by then I wouldn't mind another dsmer to help with my dsm, i'm just on 13 and cliff rd.

Now I gotta do some searching to see if a non turbo 2.0 trans out of a 91 talon will work with mine.I think I remember seeing that it doesn't but I want to know for sure. Thanks again guys. alot!!

 

[bryanwheat]

The non turbo transmission will bolt up, but they use a different flywheel and clutch.

 

[gpopppa]

Hey,Ha,yea I just got done reading a few threads about it. Just seems to be more work for something thats weaker. I mean,Im not pushing all that much more then stock, but its just the simple fact that I want to upgrade a few things in the future for more power.

So bertrenolds, woah on the site. That's local? Im going to look into it now because if i can find a direct replacement i'll snatch it up yesterday,if its a decent price that is. Thanks alot man

 

[bertrenolds]

YOU SIR ARE A GAPER, I mean noob. Get educated, but like everyone else said don't jump to conclusions and think it's the tranny. And yes there is a local mitsu site called mitsustyle and there is a 91 tranny floating around. A transmission for a car, not an actual person.

 

[gpopppa]

Just thought mitsustyle was a parts link. And im not jumping to conclusions. Its like this, If i try to put it in gear while coasting it changes the noise.

 

[talontd92tsi]

Just thought mitsustyle was a parts link. And im not jumping to conclusions. Its like this, If i try to put it in gear while coasting it changes the noise.

..... Ok Im changing my prediction from wheel bearing to internal trans bearing failure after hearing that.

start shoppin son.