This is topic Help me diagnose my Drivetrain vibration??? in forum Tech Talk at Northern California Ford Owners  .


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Posted by EPIK (Member # 7481) on :
 
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[ February 15, 2010, 01:17 PM: Message edited by: EPIK ]
 
Posted by Duncan Motors (Member # 7045) on :
 
i hate to say it, but could be input shaft bearing in the trans. could of just went out, or on the install of the trans it was put in maybe rough, and damaged the pilot bearing which then wore out the input bearing, hard one to know for sure unless u pull the trans. but that whats my guess is.
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Duncan Motors:
i hate to say it, but could be input shaft bearing in the trans. could of just went out, or on the install of the trans it was put in maybe rough, and damaged the pilot bearing which then wore out the input bearing, hard one to know for sure unless u pull the trans. but that whats my guess is.

I'm starting to think its a trans issue as well. My trans is super notchy, sometimes its hard to get in to 1st & reverse.... When you engage the clutch, the rattle goes away, but you can still feel a little vibration, but not as bad.....Thanks

[ January 23, 2010, 02:04 PM: Message edited by: EPIK ]
 
Posted by EPIK (Member # 7481) on :
 
Anybody else?
 
Posted by EPIK (Member # 7481) on :
 
I'm sure this is a dumb question, but if 1 of my coils was bad, would it throw a code?
 
Posted by Stimpys 5.0 (Member # 5829) on :
 
coil pack? im pretty sure you would get a random misfire or which ever # cyl misfire code. i think this is what your asking right?
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Stimpys 5.0:
coil pack? im pretty sure you would get a random misfire or which ever # cyl misfire code. i think this is what your asking right?

Yup. Thats exactly what I was asking...
 
Posted by fasthatch (Member # 7277) on :
 
quote:
Originally posted by EPIK:
I'm sure this is a dumb question, but if 1 of my coils was bad, would it throw a code?

weak coil or coils wont thorw a code to see it you would haveto put on a scope
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by fasthatch:
quote:
Originally posted by EPIK:
I'm sure this is a dumb question, but if 1 of my coils was bad, would it throw a code?

weak coil or coils wont thorw a code to see it you would haveto put on a scope
Hmmm. Maybe some or 1 of my coils are going bad? How do I find out? I did have a misfire code once a while back, but I cleared the code & it went away.

I am thinking I am having 2 problems with my car. I know the trans is having issues, but I still think the engine is running a bit different as well...

[ January 24, 2010, 02:57 AM: Message edited by: EPIK ]
 
Posted by Duncan Motors (Member # 7045) on :
 
if this is your 01, i believe your coil would throw a code, maybe not a coil code, but there would be a misfire code.simple enough tho start unpluging one at a time and see if theres a difference and plug back in and move onto the next one. if you do find one, swap that coil with another, to see if not computer prob, but doubt it if its this at all, cause i think you would have a miss fire code. what was the last code
 
Posted by EPIK (Member # 7481) on :
 
====

[ February 15, 2010, 01:18 PM: Message edited by: EPIK ]
 
Posted by Duncan Motors (Member # 7045) on :
 
hmmm , your gonna have to get a ohm meter and start testin each coil, and then i would just do a compresion test to make sure your just not wastin your time while the coils are out anyways, just me thoughts, good luck
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Duncan Motors:
hmmm , your gonna have to get a ohm meter and start testin each coil, and then i would just do a compresion test to make sure your just not wastin your time while the coils are out anyways, just me thoughts, good luck

Thanks man... I want to do a compression test, just need someone to help because I dont have a tester. I hope its not something to do with a low compression though because I wont have the dough to fix that. [Frown]

[ January 24, 2010, 03:07 PM: Message edited by: EPIK ]
 
Posted by Stimpys 5.0 (Member # 5829) on :
 
not sure if anyone has suggested this or not, but you can also pull the injector harness from each inj. to see if the injector is working or not. just something to look @. Are you having a slight miss or whats it doing?

i can give you a hand running a comp test on it lmk...... ill turn the key for you!

[ January 24, 2010, 08:02 PM: Message edited by: Stimpys 5.0 ]
 
Posted by Mach 5oh (Member # 9497) on :
 
Harmonic balancer is my guess, I recently had a balancer go out on me, and it had the exact same symptons. Look and see if you can see the rubber poking out of it. Im surprised no one else as suggested this.
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Stimpys 5.0:
not sure if anyone has suggested this or not, but you can also pull the injector harness from each inj. to see if the injector is working or not. just something to look @. Are you having a slight miss or whats it doing?

i can give you a hand running a comp test on it lmk...... ill turn the key for you!

A few months back, it did feel like it had a slight miss in low RPM's, but right now it seems fine. But, the exhaust has been sounding a bit different to me, but its hard to tell....
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Mach 5oh:
Harmonic balancer is my guess, I recently had a balancer go out on me, and it had the exact same symptons. Look and see if you can see the rubber poking out of it. Im surprised no one else as suggested this.

I thought I checked it a while ago, & I don't remember seeing any rubber poking out, but it could be a possibility.

I really need someone local to look it over...
 
Posted by Mach 5oh (Member # 9497) on :
 
quote:
Originally posted by EPIK:
quote:
Originally posted by Mach 5oh:
Harmonic balancer is my guess, I recently had a balancer go out on me, and it had the exact same symptons. Look and see if you can see the rubber poking out of it. Im surprised no one else as suggested this.

I thought I checked it a while ago, & I don't remember seeing any rubber poking out, but it could be a possibility.

I really need someone local to look it over...

Yeah I've learned that, You cant always check it looking in from the hood, sometimes you need to raise up the front of car and get underneath it. I also remembered checking the balancer on my car, and it looked fine with just a quick visual inspection looking down onto it. But about 3-4 days later, it blew the hole ring or whatever off. Rubber Flew out onto my garage floor, luckily it decided to let go at my house.
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Mach 5oh:
quote:
Originally posted by EPIK:
quote:
Originally posted by Mach 5oh:
Harmonic balancer is my guess, I recently had a balancer go out on me, and it had the exact same symptons. Look and see if you can see the rubber poking out of it. Im surprised no one else as suggested this.

I thought I checked it a while ago, & I don't remember seeing any rubber poking out, but it could be a possibility.

I really need someone local to look it over...

Yeah I've learned that, You cant always check it looking in from the hood, sometimes you need to raise up the front of car and get underneath it. I also remembered checking the balancer on my car, and it looked fine with just a quick visual inspection looking down onto it. But about 3-4 days later, it blew the hole ring or whatever off. Rubber Flew out onto my garage floor, luckily it decided to let go at my house.
I will have to check my balancer than. Thanks for the input.
 
Posted by street_illegal_stang (Member # 1554) on :
 
That rattle noise from the trans is probably the throw out bearing. Try tighting up the clutch cable a bit. It may help you 1st gear & reverse shifting. I used to grind into reverse all the time, then solved the problem by going into 1st to reverse instead of just shifting straight to reverse. Then again the schronizer of 1st/reverse can be worn.

I also think you have a bad harmonic balancer.
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by street_illegal_stang:
That rattle noise from the trans is probably the throw out bearing. Try tighting up the clutch cable a bit. It may help you 1st gear & reverse shifting. I used to grind into reverse all the time, then solved the problem by going into 1st to reverse instead of just shifting straight to reverse. Then again the schronizer of 1st/reverse can be worn.

I also think you have a bad harmonic balancer.

It could be, but I have adjusted my clutch a few different times & it never helped. The clutch, flywheel, & TOB only have about 6k miles on them at the most. My trans has had the grinding isues for a while, but from what I remember the noise & vibration are recent. I hope the vibration is only a bad balancer, that will be an easy fix
 
Posted by Mach 5oh (Member # 9497) on :
 
Let us know how it goes.
 
Posted by autumnstang97 (Member # 6111) on :
 
Any update?
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by autumnstang97:
Any update?

Not yet... Nobody has stepped up to the plate to offer to take a look at it. Im probably just gonna put it up in the air tonight & take a look at the motor mounts & balancer...
 
Posted by EPIK (Member # 7481) on :
 
+++

[ February 15, 2010, 01:19 PM: Message edited by: EPIK ]
 
Posted by SHOalex (Member # 7720) on :
 
Ohh yea dude your cars busted no good man just get rid of it... I can come get it and get rid of it for you man when should I come by?
 
Posted by GTCONV86 (Member # 5385) on :
 
Dustin, you just had to get some pictures up here.you have an itchy camera finger. hope you find the problem.DID YOU ASK THE GUYS AT AED?
 
Posted by GTCONV86 (Member # 5385) on :
 
OH I FORGOT, GREAT PICTURES BY THE WAY!
 
Posted by adower (Member # 5955) on :
 
Dustin, if you go to the corral.net. There is a thread in the general tech and search for drive line vibrations its like 20+ pages. Maybe it will help you.
 
Posted by AIRFORMANCE MOBILE AUTO A/C 707 (Member # 6243) on :
 
i know its not your year but could be related

10708 *
1994-1998 MANUAL TRANSMISSION MUSTANGS THAT EXHIBIT HARD SHIFTING, NOISE OR VIBRATION FROM THE TRANS/CLUTCH AREA AND/OR COMPONENTS, LACK OF PROPER CLUTCH RESERVE, AND OTHER CLUTCH RELATED ISSUES MAY BE THE RESULT OF AN IMPROPERLY INSTALLED CLUTCH RELEASE LEVER. WHILE DIAGNOSING A VEHICLE FOR THE ABOVE DESCRIBED CONDITIONS PLEASE CHECK TO MAKE SURE THE CLUTCH RELEASE LEVER IS PROPERLY SEATED ON THE CLUTCH RELEASE LEVER STUD.
EFFECTIVE DATE: 06/25/1997
 
Posted by EPIK (Member # 7481) on :
 
Thanks for the info guys.... I will be doing a compression/vac test this weekend, but i am still leaning towards a trans issue...
 
Posted by EPIK (Member # 7481) on :
 
Mike, 93ReefBlue5.0 helped me out with a vacuum test today, & all is well there. The plugs were gapped wrong, which we fixed, but that didn't solve the problem...


IMO, the car sounds like it has some type of minor misfire, because it just doesn't sound or feel as smooth as it used to, but it isn't throwing any codes at all. If I have a bad coil, would it DEFINITELY throw a code?

I guess the only thing left to do is check the compression & the coils?
 
Posted by Chris83179 (Member # 6017) on :
 
Geez, my 4.10s really jacked you up [Smile]

Honestly, i'd start by putting your stock clutch cable and quadrant back in. If it isn't that, it's time to check things from the flywheel and work towards the rear. I don't think it's engine related. Easy for me to say though...
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Chris83179:
Geez, my 4.10s really jacked you up [Smile]

Honestly, i'd start by putting your stock clutch cable and quadrant back in. If it isn't that, it's time to check things from the flywheel and work towards the rear. I don't think it's engine related. Easy for me to say though...

The car has a stock cable, but an aftermarket quadrant & firewall adj. I no longer have the stock quadrant parts...


I'm beginning to think that the poly mounts might be to blame.
 
Posted by bigjerry (Member # 6033) on :
 
Sell it put the money into the notch
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by bigjerry:
Sell it put the money into the notch

LOL... Their is no "money" back to put into the notch if the car got sold, it all goes to the bank unfortunately...


On top of that, I don't think I could ever have a fox as my only stang though because I can't drive it anywhere without worrying about some low life thieves steeling my sh#t... I can take the Mach to the mall or the movies without worrying about my car not being there when I come back.

[ February 08, 2010, 11:25 PM: Message edited by: EPIK ]
 
Posted by street_illegal_stang (Member # 1554) on :
 
use an multimeter to check the resistance on your coils.
you should get the same figures.

[ February 09, 2010, 12:07 AM: Message edited by: street_illegal_stang ]
 
Posted by Duncan Motors (Member # 7045) on :
 
YOU COULD COME UP WITH A MILLLION IDEAS UNTIL YOU ACTUALLY START TOUCHIN YOUR VEHICAL YOULL NOT FIND OUT SHIT, I STILL STAND ON ORI POST IN THE BEGINNING. BUT YOUR RIGHT THESE NWER POLY MOUNTS ARE SO STIFF THEY MIGHT AS WELL BE SOLIDS,sorry bout the caps lock, but i dont think so.
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Duncan Motors:
YOU COULD COME UP WITH A MILLLION IDEAS UNTIL YOU ACTUALLY START TOUCHIN YOUR VEHICAL YOULL NOT FIND OUT SHIT, I STILL STAND ON ORI POST IN THE BEGINNING. BUT YOUR RIGHT THESE NWER POLY MOUNTS ARE SO STIFF THEY MIGHT AS WELL BE SOLIDS,sorry bout the caps lock, but i dont think so.

We already tested for vacuum leaks, checked out the balancer, plugs, motor/trans mounts, checked out the resistance on the coils, all seem to be good... I think its just the mounts???


Only thing that hasn't been checked is the compression or fuel pressure...
 
Posted by Chris83179 (Member # 6017) on :
 
I remember when I drove it, you could feel that vibration heavily through the shifter, clutch engaged and disengaged. Don't think you're issue is up front...
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Chris83179:
I remember when I drove it, you could feel that vibration heavily through the shifter, clutch engaged and disengaged. Don't think you're issue is up front...

Poly trans mount then??? But I can see the motor shake more than it did before, & I can feel the vibration everywhere, the dash, floor pan, gas pedal, shifter, U name it...
 
Posted by adower (Member # 5955) on :
 
quote:
Originally posted by EPIK:
quote:
Originally posted by Chris83179:
I remember when I drove it, you could feel that vibration heavily through the shifter, clutch engaged and disengaged. Don't think you're issue is up front...

Poly trans mount then??? But I can see the motor shake more than it did before, & I can feel the vibration everywhere, the dash, floor pan, gas pedal, shifter, U name it...
Mounts should not be too bad. Just check for any cracks or what not.
 
Posted by Mach 5oh (Member # 9497) on :
 
Think it could be a bearing in the trans/clutch area?
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by adower:
quote:
Originally posted by EPIK:
quote:
Originally posted by Chris83179:
I remember when I drove it, you could feel that vibration heavily through the shifter, clutch engaged and disengaged. Don't think you're issue is up front...

Poly trans mount then??? But I can see the motor shake more than it did before, & I can feel the vibration everywhere, the dash, floor pan, gas pedal, shifter, U name it...
Mounts should not be too bad. Just check for any cracks or what not.
Check the pics on pg 1, no cracks in the mounts at all...

[ February 12, 2010, 09:23 PM: Message edited by: EPIK ]
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by Mach 5oh:
Think it could be a bearing in the trans/clutch area?

Would a bad bearing cause that?
 
Posted by RAIDERGT (Member # 6978) on :
 
I had a similar problem when one of my coils went bad, no codes just a lot of vibration and it got worst when on the gas. Put in new coils last week and all has been well
 
Posted by EPIK (Member # 7481) on :
 
quote:
Originally posted by RAIDERGT:
I had a similar problem when one of my coils went bad, no codes just a lot of vibration and it got worst when on the gas. Put in new coils last week and all has been well

Really? No codes either?
 
Posted by 50 Deep (Member # 6216) on :
 
Sell it and buy an 04 cobra.

Problem solved.... but you will have issues with blower whine [Wink]
 
Posted by Luke87GT (Member # 21) on :
 
Sounds like you are making good progress Dustin...

Keep chipping away at the causes and hopefully you will find the culprit soon.

I would do temporarily DL the stock tune and do a compression test.
 
Posted by Duncan Motors (Member # 7045) on :
 
¯
Member # 7045

Icon 1 posted January 23, 2010 10:59 AM Profile for Duncan Motors Ford pictures for Duncan Motors Email Duncan Motors Send New Private Message Edit/Delete Post Reply With Quote i hate to say it, but could be input shaft bearing in the trans.
 
Posted by EPIK (Member # 7481) on :
 
====

[ February 15, 2010, 01:22 PM: Message edited by: EPIK ]
 
Posted by adower (Member # 5955) on :
 
...

[ February 15, 2010, 08:08 PM: Message edited by: adower ]
 
Posted by EPIK (Member # 7481) on :
 
+++

[ February 15, 2010, 01:21 PM: Message edited by: EPIK ]
 
Posted by adower (Member # 5955) on :
 
quote:
Originally posted by EPIK:
quote:
Originally posted by adower:

Yup, had it tuned by FFP almost 2 years ago... I don't think they were totally to blame though, even though the tune wasn't all the great, probably just wasn't a stout motor from the factory...

Cylinders 1,2,3,4, & 7 were @180 psi, but unfortunately cylinder 6 was @150 psi, & cylinders 5 & 8 were @ a measly 120 psi!!!!! Needless to say I am pretty bummed out about this... A 54k mile N/A motor with low compression in 3 out of 8 cylinders... I have plans to get it fixed though, hopefully I won't have to come out of pocket...

Those numbers sound all bad. Hopefully, you don't have to come out of pocket to fix it.

...

[ February 15, 2010, 08:28 PM: Message edited by: adower ]
 
Posted by EPIK (Member # 7481) on :
 
++++

[ February 15, 2010, 01:20 PM: Message edited by: EPIK ]
 
Posted by adower (Member # 5955) on :
 
quote:
Originally posted by EPIK:
quote:
Originally posted by adower:
quote:
Originally posted by EPIK:
quote:
Originally posted by adower:
Ouch D. What were the numbers. Didnt you have the car tuned a while back by a shop? I remember you posted something about that a long time ago.

Yup, had it tuned by FFP almost 2 years ago... I don't think they were totally to blame though, even though the tune wasn't all the great, probably just wasn't a stout motor from the factory...

Cylinders 1,2,3,4, & 7 were @180 psi, but unfortunately cylinder 6 was @150 psi, & cylinders 5 & 8 were @ a measly 120 psi!!!!! Needless to say I am pretty bummed out about this... A 54k mile N/A motor with low compression in 3 out of 8 cylinders... I have plans to get it fixed though, hopefully I won't have to come out of pocket...

Those numbers sound all bad. Hopefully, you don't have to come out of pocket to fix it.

I somewhat know how you feel, I blew the head gasket in my cobra and its not a very good feeling. Couldn't imagine a motor rebuild. [Frown]

Tell me about it... The car isn't even payed off yet... & if you know me, you know I don't beat on my cars as much as most people do....
...

[ February 15, 2010, 08:22 PM: Message edited by: adower ]
 




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