1995-2003 S10 & Blazer Front End Clunk Pop Fix!!! Read!!

[cobra1]

Originally Posted by cablep

I have a 96 Jimmy. I have clunk/knock type of noise that is pretty much exclusive to turning. I can feel it in the floorboard when it happens. Is this the same noise you are refering to with this fix?

as previously stated, it could be. but feeling it in the floor board could also be torsion bar mounts.

the washers are cheap, so no harm trying that first. however if the noise remains i'd look at the torsion bar mounts next.

[BlazerLT]

Torsion bar mounts don't exist on the 2nd generation blazer.

They only occur on the 1994 and older first generation s-series.

[cobra1]

Originally Posted by BlazerLT

Torsion bar mounts don't exist on the 2nd generation blazer.

They only occur on the 1994 and older first generation s-series.

so then i guess the torsion bars on my 2000 Blazer arent really there. and where they attach doesnt exist either?

[BlazerLT]

Go under your vehicle.

The crossmember that the torsion bars are attached to do NOT have the same frame mounts as the 1994 and older s-series.

Those are the mounts on the 1994 and older that make the clunk. We don't have those on 1995 and newer blazers and jimmy, they have a newer system for ours.

This is the system in the 1994 and we don't have it:

Here is the link:

http://www.sytyarchives.com/howto/vi...dir=suspension

We don't have that system in the second generation.

[cobra1]

i found what i read... although it doesnt apply to the '96, its for '98-up. i knew it involved the torsion bar, and a clunk.


Clunk Noise Felt Through
Floor Pan
Affected Models:
1998-2003 Chevrolet S-10, Blazer
1998-2001 GMC Envoy, Sonoma,
Jimmy (US), and Oldsmobile Bravada
1998-2003 GMC Jimmy (Canada)
Some owners of the listed vehicles
may experience a clunk noise that can be
felt through the floor pan.

This condition may be caused by the
torsion bar crossmember contacting the
frame rails during left or right turns or on
uneven surfaces.

Determine if the clearance between
the left frame rail to crossmember and
right frame rail to crossmember are equal.
If not, install either a washer or alignment
shim between the upper mount and
frame.
Refer to SI document 539243. This
document includes a component diagram
of the torsion bar crossmember to frame
rail assembly and may provide assistance
in the repair.

[BlazerLT]

True, but it doesn't involve a mount like the 1994 and older s-series.

[JimmyGold]

Hi Guys,

Blazer LT I'm going to check into your post, I must admit that I am skeptical because the clunk comes through the floor pan. Cobra1's post is correct because I found that bulletin 2 years ago, and I had it fixed when my vehicle still had a warranty. The dealer replaced the sway bar and the clunk went away. About 8 months later it came right back! I just live with it now.

BUT there is another noise - rattle that seems to come from behind the dashboard, I took out my dashboard looking for something that was loose to no avail. Maybe your post addresses that - I'll give it a shot. In either case thanks for being so informed it is a big help!

[JimmyGold]

Blazer,

If you check the second link that you sent in the original post from the ZR2 forum, there is a seperate section for "clunking" that is different from the "rattle"


http://www.zr2.com/frequently_asked_.../clunking.html


I think this the answer, truth is the problem is not a big deal. Again, I will try the solution for the rattle

Regards

[BlazerLT]

There are no torsion crossmember mounts on a 1995 and newer s-series.

That link you have from the site is for a DRIVELINE clunk from the driveline going from park to drive and not the suspension.

The rattle behind the dash is definitely the hood.

[jimmygmc00]

I am new to the site and found some great info.
I have a 2000 Jimmy and have had the same problem popping. I replaced both hub assemblies and still popping real bad. Just went today and had everything greased for the second time. I thought maybe the grease had dispersed so much that it needed more. I was considering the ball joints next. Now I will definetly check on the washers.

Has anyone with this problem heard a popping crackling noise at the bottom of the windshield on the drivers side? Did the washers fix this too?
-Thanks Blazer.

[BlazerLT]

Yes, it affects both of them.

Don't replace anything else, just replace the washers. Trust me, the noise will be gone.

[xokayxo]

Where can I find MORE updates from GM?

**EDIT**
Found it:

http://www.alldata.com/recalls/index.html

[BlazerLT]

alldata.com

[xokayxo]

Hey guys,
After reading about this simple fix, I wrote down the part number and took it to my GM dealer. They couldn't find the part number in their system and on their diagrams there wasn't even a washer on the hood hinge at all (apparently since it's an updated part they don't have it in stock and why it's also not on their diagrams). They said they would either have to special order it or I can get one at the other GM dealer across town and they've only got two in stock. Someone also said they got a washer at Ace Hardware that worked just as well. I tried that as well, to no avail. One person called this washer that I need a "spring washer" and another called it a "locking conical washer." Which is the right name for this part so I don't look like a fool running around for it?

[BlazerLT]

That is the right part number, I got them here at the dealer with that exact number.

Go with the exact washer that I quoted.

It is the perfect thickness and size for the application.