slight drivers side rattle over bumps felt in floorboard

any ideas? My right side has a bad bearing I believe...as I was informed....with the muffed "RRRRRRRRRRRRRRR" I get at highway speeds when I turn to my left.
Not sure what this would be on the left side though. Steering seems pretty tight.

Sounds to me that it could be your door hinge pins that are causing this noise. The original bushings in the door pins are known for going bad. You can get replacement pins and bushings in the help section of most auto part stores. I know this might sound a little crazy but I had this same problem.

Sounds to me that it could be your door hinge pins that are causing this noise. The original bushings in the door pins are known for going bad. You can get replacement pins and bushings in the help section of most auto part stores. I know this might sound a little crazy but I had this same problem.

This has nothing to do with door pins.

The bearing needs to be replaced.

no, I've replaced door pins....thats not the sound, but thanks.

Blazer LT, just did the passenger side, fixed the hum/roar noise around corners to the left. You think that rattle is the bearing too? Should I be able to feel it shift by hand jerking the tire around side to side & top to bottom?

Trust me , just check your door pins before you replace a bearing that does not need to be replaced. Most people overlook these these simple things and begin to spend alot of money just replacing part after part. If it is just a rattling feeling under the floor pan than this is most likely your problem, people also mistake this sound for a cracked contol arm.

dude. trust ME.
I know what door pins sound like. I've done them...i.e.- I know what they sound like when they're bad. I know what they look like when they're bad. I know they were done right, and don't need to be replaced.
As BlazerLT said: "this has NOTHING to do with door pins"

no, I've replaced door pins....thats not the sound, but thanks.

Blazer LT, just did the passenger side, fixed the hum/roar noise around corners to the left. You think that rattle is the bearing too? Should I be able to feel it shift by hand jerking the tire around side to side & top to bottom?

The rattle could be the hood rattling.

Have you installed the spring washers yet for it?

yeah. installed the washers when it turned out to be the door pins. no rattle from the hood. just checked it again by hand.

hey. although I can barely get any movement shaking the hood by hand up by the hinge, I threw a work glove in the slot and closed it, and it seems like it MAY have gotten rid of the rattle. I can't be sure yet. Although, heres my problem. What do I have to do if its still rattling after the washer install? Im thinking I may try to add another one or two on top of the first one and try that. Any other ideas? Hoping that this IS in fact the rattle. But think I'd be able to feel it in the floorboard?

Did you install the washer so that the narrower end pointed towards the threads?

yea

Did you make sure the bolt was centered when you inserted it inthe hinge?

Maybe tighten it a bit.

Do you mind me asking for clarification on the spring washers? Is there a hood fix I missed? Thanks and sorry for the interruption.

Search for clunk fix.

My washers actually got flattened when I tightened them into the hood. They aren't so springy now, but the hood stays on tight somehow.

There was a post a few months ago about a rattle with pics and a GM buliten about the hood hinges rattling inside the fender while the hood is closed

really? kinda like this?:
http://www.automotiveforums.com/vbulletin/showthread.php?t=302656&highlight=clunk+pop

Thats what we've been talking about.

BlazerLT, Im thinking perhaps I overtightened them? I'm pretty sure that the rattle is this again. All I can think to do is remove the bolt, look at it, and probably install an additional washer or two.

really? kinda like this?:
http://www.automotiveforums.com/vbulletin/showthread.php?t=302656&highlight=clunk+pop

Thats what we've been talking about.

BlazerLT, Im thinking perhaps I overtightened them? I'm pretty sure that the rattle is this again. All I can think to do is remove the bolt, look at it, and probably install an additional washer or two.

That and MAKE SURE the bolt is centered in the hole when inserting the bolt.

One washer should do.

one more then the first you mean>? 2 total right?

I went out last night without the glove shoved in the hinge, and heard the rattle again. let this be a lesson if the washer fixes it again. If it does, YOU CAN FEEL A RATTLE IN THE FLOORBOARD FROM THE HOOD!
I'll let everyone know. Amazing!

This sounds like something you may want to check out, it was originally posted by Swalt in 1998 JIMMY front end pop.....>>>>>> (http://www.automotiveforums.com/vbulletin/showthread.php?t=328854)

Hood washers or this. Easy to tell if the crossmember is hitting the frame as there will be marks in the dirt on the frame.

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.

- Thanks to GM Technical Assistance

I'll try the hood washers first, but can you better explain to me WHERE they're talking about? I don't know what a "crossmember" really is.

Could you explain this better please? I'd really appreciate it.
I did the washers, and the rattle in the floor is still there over bumps. I'm thinking this may be my problem. It does appear that the drivers side sits slightly lower then the passenger........but I don't know what this torsion bar crossmember is

The cross member is at the back of the torsion bars, it runs from one side of the frame to the other. Just about right under where your ass is. You can grab the torsion bars and move them back and forth and watch it move, if not centered properly it will hit the frame (while driving... it won't hit while shaking it with your hands) You can visually see a mark on the frame if it has been hitting. Mine hits on the driverside, I'll fix it when I do my U-joints and motor mount. Mine has about a 1/4" space on the driverside and about 3/4" on the passengerside. They are suppose to be equal.

and where do you put this washer or spacer to correct the issue?

and where do you put this washer or spacer to correct the issue?

http://blue2kzr2.spymac.net/HoodHinge.jpg

no no dude. read before. not looking for the hood spacer. this is different.

Hold on I'll take a pic

that'd be awesome! thanks!
I gotta get my digital working again so I can post more photos to help out.

I haven't done mine yet, but I'm almost positive it goes here. This is a pic of the passenger side, but you need to put it on which ever side is too close to the frame.

http://www.image-hosting.ws/direct/1000.jpg

I don't honestly think that is the problem. Too far back to be mistaken for a front end knock.

so where is your's making contact with the frame? I don't see a mark or anything. BlazerLT, you think thats too far back? If so, then I'm thinking about bringing it in to a front end guy thats reputable to check it out. Pretty confident its something with the front left wheel/steering.

He didn't say a front end knock he said a rattle felt through the floor board.

Josh,
How faint is the rattle? I just remembered when I first got my blazer the skid plate that covers the tranny and transfer case was loose and would rattle while idling or driving over bumpy roads, I don't remember feeling it in the floor pan though.

it's only heard over hard bumps, then its rattle is noticable to me cause I'm expecting it. I can feel it on the floorboard too.
I thought/think it was coming from the front left wheel or steering somewhere. Sorry, thought I mentioned that

Mine was hitting right in there....it only makes a minute to slide under and look for a mark on the frame.

http://www.image-hosting.ws/direct/1001.jpg

so now how does a washer in the first place stated fix a rattle where you're pointing to in the second pic?

The whole thing is supported by the place I pointed out in the first pic. There is another one just like it on the other side, the whole cross member is suspended under them. When you install the washer it increases the clearence between the point in the second and the frame, that way it doesn't hit anymore

guess I'll understand better when I get under and look