Pennock's Fiero Forum
  Technical Discussion & Questions
  Stumped on suspension noise.

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
Stumped on suspension noise. by solotwo
Started on: 11-05-2013 12:49 PM
Replies: 6 (240 views)
Last post by: solotwo on 11-10-2013 09:56 PM
solotwo
Member
Posts: 5311
From: Grand Rapids, MI. USA
Registered: Jun 2002


Feedback score:    (9)
Leave feedback





Total ratings: 62
Rate this member

Report this Post11-05-2013 12:49 PM Click Here to See the Profile for solotwoSend a Private Message to solotwoEdit/Delete MessageReply w/QuoteDirect Link to This Post
Stumped to clunk/snap/click whatever it may be called. I have tried this per orourke:

Just try this and report results, take the wheel off, compress the suspension from under the lower arm. Important !

Then try to move the entire brake assembly, from 11 O Clock to 1 O Clock, watch the upper arm, if the upper arm does a little see sawing motion, you will know where that clunking noise is coming from when you step on the brake, it's the long upper bolt pitching inside the sleeve. The bolt is making the noise. When you pull the bolt you will see how "shiny" it is, that bolt is hardened steel, the crossmember tube is softer, mild steel, egged out. I'm willing to bet five bucks.

Every time I check I can not get any movement in that area. I can only get the steering to move a tiny bit. I checked the rack bolts the other day and snugged them down. I tighten a loose brace bolt. Last month I found all the rear cradle bolts not tightened and the passenger side upper crossmember bolt needed to be tightened to spec. I am confused and perplexed to the point I feel like selling it. I am not sure about driving to far from Grand Rapids in case something breaks, the tow bill wont be high. The noise seems to be coming from the drivers side over by the accelerator and yet I can feel in the brake pedal. Yet only twice from the left. It does not do it every time. Yesterday it was doing it some. Then this morning not at all. Go figure?

Any Ideas?

[This message has been edited by solotwo (edited 11-06-2013).]

IP: Logged
PFF
System Bot
FIEROPHREK
Member
Posts: 4424
From: a dig
Registered: Mar 2004


Feedback score: (5)
Leave feedback





Total ratings: 137
Rate this member

Report this Post11-05-2013 08:18 PM Click Here to See the Profile for FIEROPHREKSend a Private Message to FIEROPHREKEdit/Delete MessageReply w/QuoteDirect Link to This Post
I would check your inner and outer tie rods.

------------------

ARCHIES JUNK IS FASTER THAN SHAUNNA'S JUNK

12.3 is faster than a 13.2

IP: Logged
solotwo
Member
Posts: 5311
From: Grand Rapids, MI. USA
Registered: Jun 2002


Feedback score:    (9)
Leave feedback





Total ratings: 62
Rate this member

Report this Post11-06-2013 12:58 AM Click Here to See the Profile for solotwoSend a Private Message to solotwoEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by FIEROPHREK:

I would check your inner and outer tie rods.



Ok, but they are new. They were installed when the used rack was installed. And I think the noise was there before the rack was installed. Not sure dont quite remember.
IP: Logged
Macarchie
Member
Posts: 144
From: Fredericksburg, VA
Registered: Sep 2012


Feedback score: (1)
Leave feedback

Rate this member

Report this Post11-06-2013 07:49 AM Click Here to See the Profile for MacarchieClick Here to Email MacarchieSend a Private Message to MacarchieEdit/Delete MessageReply w/QuoteDirect Link to This Post
1) Shock mounts?
2) Sway Bar mounting bolts?
3) Is the engine warm when you hear it or is it still warming up? The coolant lines run down each side of the body under the doors. These tubes (like all metal) expand when heated. There are plastic/rubber holders that keep these in place. The noise may be related to movement caused by this expansion. There is also a heater hose that connects to the coolant system near the passenger side cradle pivot (behind the passenger seat). That heater hose travels alongside the fuel tank up to the heater core - and it to will expand when heated also.

HTH, Jimmy

------------------
1987 coupe; Blue; 2.5L; 5-spd
1987 Firebird Formula; Blue; 5L; 5-spd

IP: Logged
solotwo
Member
Posts: 5311
From: Grand Rapids, MI. USA
Registered: Jun 2002


Feedback score:    (9)
Leave feedback





Total ratings: 62
Rate this member

Report this Post11-06-2013 08:33 AM Click Here to See the Profile for solotwoSend a Private Message to solotwoEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Macarchie:

1) Shock mounts?
2) Sway Bar mounting bolts?
3) Is the engine warm when you hear it or is it still warming up? The coolant lines run down each side of the body under the doors. These tubes (like all metal) expand when heated. There are plastic/rubber holders that keep these in place. The noise may be related to movement caused by this expansion. There is also a heater hose that connects to the coolant system near the passenger side cradle pivot (behind the passenger seat). That heater hose travels alongside the fuel tank up to the heater core - and it to will expand when heated also.

HTH, Jimmy



Shock mounting bolts, hmm. I removed the lower shock bolt when I removed the lower control arm to have the ball joint pressed out. I tightened that bolt but I didn't check the upper. This is on the drivers side and that is where I hear it the most. I hear it hot or cold. I had to remove the sway bar bolts on both sides when I installed the rack. I tightened them to spec.

Thanks for the info. I'll check it out.

[This message has been edited by solotwo (edited 11-06-2013).]

IP: Logged
solotwo
Member
Posts: 5311
From: Grand Rapids, MI. USA
Registered: Jun 2002


Feedback score:    (9)
Leave feedback





Total ratings: 62
Rate this member

Report this Post11-06-2013 03:08 PM Click Here to See the Profile for solotwoSend a Private Message to solotwoEdit/Delete MessageReply w/QuoteDirect Link to This Post
"Just try this and report results, take the wheel off, compress the suspension from under the lower arm. Important !

Then try to move the entire brake assembly, from 11 O Clock to 1 O Clock, watch the upper arm, if the upper arm does a little see sawing motion, you will know where that clunking noise is coming from when you step on the brake, it's the long upper bolt pitching inside the sleeve. The bolt is making the noise. When you pull the bolt you will see how "shiny" it is, that bolt is hardened steel, the crossmember tube is softer, mild steel, egged out. I'm willing to bet five bucks."


Ok I jacked the car up and supported the subframe with jack stands. Then using the jack compressed the suspension from underneath the lower control arm. I did this on both sides and could not get any movement. Did I do something wrong in the above process? If it stops raining I'll try the shock bolts and see if they are loose. For some reason my mind says it may be the left front caliper. Why the brakes, I can feel it in the brake pedal sometimes. I'll keep asking and trying till I find it.


Thanks,
Steve

[This message has been edited by solotwo (edited 11-06-2013).]

IP: Logged
solotwo
Member
Posts: 5311
From: Grand Rapids, MI. USA
Registered: Jun 2002


Feedback score:    (9)
Leave feedback





Total ratings: 62
Rate this member

Report this Post11-10-2013 09:56 PM Click Here to See the Profile for solotwoSend a Private Message to solotwoEdit/Delete MessageReply w/QuoteDirect Link to This Post
Installed reman caliper on the drivers side front yesterday and that took care of a lot. I tried to do a reman on the passenger side and found NAPA gave me a bad unit so the old caliper is back on. I'll drive it tomorrow and see if the suspension noise is gone.
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock