Bad Vibration

[Minitrucker]

Hey guys I know I have not been around in awhile. Place looks great.
Heres the scoop- have had a major vibe on the highway, bad enough to shake my rearview since september. My dealer has tried everything to fix it and cant. Sent the driveshaft out for balancing- it was fine,changed the dampener, new u-joints. They say my tires and rims are fine, pinion angle is fine. Now today they tell me GM is aware of this problem and have a tsb on it but there is no fix. I will get the tsb tomorrow and let you know. I am currently talking to GM about it.
Any other Ideas guys?
Please help!!

[Supercharged-ZQ8]

Check the brake rotors. If they're warped, the vibration you've got is usually what happens.

[Supercharged-ZQ8]

Oh, yeah, and welcome home!

[OBI WAN]

Not that they missed it, but motor mounts and or tranny mount!
If its not there Id like to see the TSB cause its telling me something with the tranny, flexplate or torque convertor if everything else like front suspension, rear and rear end and wheels are all good!!

[OBI WAN]

Bulletins for 2002 Chevy Truck S10/T10 P/U 2WD V6-262 4.3L VIN W SFI

General Recalls TSB Number Issue Date TSB Title
99066F MAR 03 Campaign - Fuel Injector Sticking Closed
Service Bulletins TSB Number Issue Date TSB Title
00-00-89-008D APR 04 Vehicle - Recreational Dinghy Towing
04-06-01-013 APR 04 Engine - Serpentine Drive Belt Wear Information
04-06-04-015 MAR 04 Emissions - MIL Lamp ON/DTC P0410 Set
04-07-30-013 MAR 04 Air Filter - SES Lamp ON/Multiple Driveability Concerns
03-06-01-024B MAR 04 Engine - Rattle Between 1,800 and 2,200 RPM's
01-07-30-036C MAR 04 A/T - DTC P0756 Diagnostic Tips
00-06-02-006A FEB 04 Cooling System - Coolant Information
02-07-30-001A FEB 04 A/T - 4L60E and 4L65E DTC P0894/P1870 Diagnostics
04-07-30-006 FEB 04 A/T - 4L65E, 4L60E, 4L60, 200-4R Oil Pump Spring
04-06-03-002 FEB 04 Ignition Switch - Intermittent No Crank/Dead Battery
01-07-30-038B JAN 04 A/T - 4L60-E/4L65-E MIL ON/DTC P0757/Slipping
01-07-30-042B JAN 04 A/T - 4L60-E/4L65-E, 2-3/3-2 Shift Clunk Explanation
04-08-48-001 JAN 04 A/C - Broken Defogger Grid Detection
02-06-05-004A JAN 04 Emissions - Catalytic Converter Damage/Misfire Codes Set
04-01-37-001 JAN 04 A/C - Control Knob Replacement Availability
04-03-10-001 JAN 04 Tires - Puncture Repair Guidelines/Procedures
02-08-48-001A DEC 03 Windows/Glass - Urethane Adhesive Usage
03-07-30-056 NOV 03 A/T - 4L60-E Oil Pump Identification
03-07-30-007A NOV 03 A/T - 4L60-E, 4L65-E Delayed Gear Engagement
01-08-42-001A NOV 03 Lighting - Lamp Condensation/Replacement Guidelines
01-01-38-013A OCT 03 A/C - Unnecessary Compressor Replacement
99-09-40-005A OCT 03 Interior - Seat Belt Extenders
03-06-04-041 AUG 03 Ignition - MIL ON/DTC P0300 Set/Driveability Issues
99-04-20-002B AUG 03 Drivetrain - Driveline Clunk Explanation
01-07-30-002C AUG 03 Electrical - MIL ON/A/T Stuck in 3rd Gear
03-09-41-003 JUL 03 Restraint System - Proper Air Bag System Diagnosis
01-06-01-011A JUL 03 Engine - Oil Consumption Information
01-01-39-003A JUL 03 A/C - Catastrophic Compressor Failure Debris Removal
01-01-38-006B JUL 03 A/C - R-134A System Flushing Procedure
03-07-30-027 JUN 03 A/T - Oil Cooler Flushing Frequently Asked Questions
99-07-30-022A JUN 03 A/T - Shift Stabilization/Tow/Haul Mode Feature
03-08-68-001 MAY 03 Cruise Control - Revised Diagnostics
99-08-52-005A MAY 03 Keyless Entry System - Operational Characteristics
03-07-29-004 APR 03 M/T - Operating Characteristics
99-01-39-007B MAR 03 A/C - Automatic A/C Functional Description
03-01-38-001 MAR 03 A/C - System Sealers/Leak Detection Guidelines
03-08-44-006 MAR 03 Entertainment System - Class 2 Radio Revision
02-08-42-001A MAR 03 Lighting - Polycarbonate Headlamp Damage Prevention
02-07-30-052B FEB 03 A/T - Oil Cooler Flushing Tool/Procedure
99-07-30-017A FEB 03 A/T - Oil Cooler Flushing/Flow Check Procedures
03-08-67-001 FEB 03 Body - Roof Rack Wind Noise
00-06-04-003B FEB 03 Fuel System - MIL ON/Rough Idle on Start-Up
99-08-64-016A JAN 03 Body - Weatherstrip Maintenance
03-06-04-012 JAN 03 Electrical - Wiring Harness Inspection Recommendations
02-01-38-005 DEC 02 A/C - Revised Heater/Vent Module Replacement
02-05-25-006A DEC 02 Brakes - Antilock Brake Activation at Low Speeds
02-06-03-006A DEC 02 Electrical - Testing Before Replacing Battery or Alt
00-06-01-023B DEC 02 Engine - Balance Shaft Rattle Noise Explanation
02-06-04-059 DEC 02 Engine Controls - Engine Runs Rough/MIL ON/DTC's Set
99-07-30-016B OCT 02 A/T - Intermittent Downshift/Slip/Cycling Diagnosis
02-06-03-010 OCT 02 Battery - Parasitic Drain Information
02-06-03-008 AUG 02 Charging System - Low Voltage Display ON/Dim Lights
02-06-01-028 AUG 02 Engine - Crankcase Flushing Recommendations
02-08-47-001 JUL 02 Body Control - Update of Some Control Module DTC's
02-07-30-028 JUN 02 A/T - Serial Number/Site Code Locations/Identification
02-08-57-004 JUN 02 Body/Interior - Waterleak Diagnosis/Repair
02-09-41-001 JUN 02 Computers & Controls - DTC's Set When Replacing Modules
02-06-01-026 JUN 02 Engine - Identification Information
02-07-30-024 MAY 02 A/T - Cracked/Broken Case Diagnosis
02-08-44-007 MAY 02 Audio System (XM) - Negative Impact of Vinyl/Cloth Roofs
02-06-05-002 MAY 02 Exhaust System - Booming/Groaning Noise
02-08-46-007 MAY 02 OnStar (R) - Caller Minutes Cannot Be Replenished
02-08-46-006 MAY 02 OnStar (R) - Incorrect GPS Location During OnStar Call
02-08-42-004 APR 02 A/T - PRNDL Display Dim for One Minute
02-00-90-002 APR 02 Driveshaft Double Cardan Joint - Manual Update
02-08-46-004 APR 02 OnStar System (R) - Cellular Error Messages
99-08-51-007A MAR 02 Aluminum Wheels - Refinishing
02-08-64-007 MAR 02 Door (Third) - Hard to Open/Handle Breakage
02-06-04-015 MAR 02 Engine - Intermittent No Crank/No Start
02-06-01-008 MAR 02 Engine - New Prelube Tool
99-00-89-019B FEB 02 Warranty - Parts Return Program Explained
02-02-35-001 JAN 02 Ignition Lock Cylinder - Revised Replacement Procedure
00-00-89-027A JAN 02 Interior - New Odor Elimination Product
01-03-10-012 JAN 02 Wheel Balance/Alignment - Labor Operation Guidelines
01-07-30-041 DEC 01 A/T - Fluid Leak Diagnosis
01-07-30-043 DEC 01 A/T - Slipping/Missed Shifts Diagnostic Tips
01-08-46-006A DEC 01 Onstar(R) - Antenna Coupling Revised Procedures
01-03-10-011 DEC 01 Tires - Sidewall Damage
01-06-05-006 NOV 01 Exhaust System - Rattle/Rumble Noise
01-08-97-002 NOV 01 HomeLink(R) Transmitter - Programming Difficulties
01-07-31-002 NOV 01 M/T - Improved Clutch Bleeding Procedure
01-08-44-014 NOV 01 Radio - Erratic or Intermittent Operation
01-03-10-009 NOV 01 Wheel Nut Covers - Loose/Missing
01-07-30-029 OCT 01 A/T - Core Return Product Feedback Form
00-06-04-011A OCT 01 EVAP System - Monitor Strategy
01-03-10-007 OCT 01 Spare Tire - Lowering Information
01-08-51-003 OCT 01 Vehicle - Interior/Exterior Anti-Corrosion Materials
01-00-89-013 SEP 01 RKE Transmitter - Correct Use of Labor Operation R4490
01-08-46-004 AUG 01 Cellular Phones - Operating Characteristics
01-08-51-002 AUG 01 Door Edge - New Protection
01-08-63-001A AUG 01 Hood Hinge - Rattle
01-01-38-006A JUL 01 A/C - Proper Flushing Procedures
01-08-44-006A JUN 01 Audio System - Clearing `CLN' Message From Display
01-00-89-010 JUN 01 Diagnostic Worksheet - Usage
99-06-03-010A JUN 01 PCM/BCM Replacement - DTC's B001/B1271/B1780 Set
01-09-40-002 JUN 01 Seat Belt System - Collision Replacement Guidelines
01-00-89-009 MAY 01 Key/Key Number/Security Chip - Replacement

Only see maybe 2 and neither are good!

[Minitrucker]

I did not see anything either. I was told engine and tranny mounts were good. Feel it in the seat and the body. I really want to see this tsb he says he has.

[LEADFOOT]

Its a LEMON.

[LEADFOOT]

Where can I find these tsb's? Where do I go to read them?

[OBI WAN]

All Data

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


For a price also you can get information on how to do the actual servicing etc!!

[LEADFOOT]

$25 bucks a year?????????????? Thats it? I am going to get a subscrition right now.

[OBI WAN]

The Force now may you have if subscription is made!!!

Secret of Yoda's part knowledge it may be!!

[bvr775]

sounds like a cracked flexplate are one of the weights came off. this is actually very common.
if you have a std. it could be a glazed spot on the flywheel, bad surface, a broken finger on the pressor plate

[Minitrucker]

Vibration at Highway Speeds- suspension wheel
#PI01273B - (Sep 15, 2003)

Vibration at Highway Speeds

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Condition/Concern:

Vibration that can be felt in seat of pants or a body shake at highway speeds.

Recomendation/Instructions:

This condition may occur when the vehicles EVA readings show the tires at 12-14 Hz, or 60 mph, and 0.07 Gs. This condition may be induced or increase in intensity on rough roads. This vibration is NOT torque sensitive and CANNOT be felt in the steering wheel/column.

This vibration is cosidered a normal characteristic for these vehicles and no repair attemts should be made.

Please follow the diagnosis procedure thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the VIN you entered and should not be automatically used for other vehicles with similar symptoms.

Models:

(00,01,02,03 Chevrolet Blazer 2WD/4WD) and (00,01 GMC Jimmy 2WD/4WD, U.S only) and (00,01,02,03 GMC Jimmy 2WD/4WD, Canada only) and (00,01 GMC Envoy), and (00,01 Oldsmobile Bravada AWD) and (00,01,02,03 Chevrolet S-10 2WD/4WD)

[Minitrucker]

Cant tell ya where I got it, but what do I do now?

[OBI WAN]

OH I thought you were talking about a serious vibration!! I have the same one and its due to the sealed front bearings which are non adjustables. The right road its smoother than snot, wrong road and at times can feel like a wheel its out of balance. Mines sensitive to more over 60 mph than anywhere else, at 70 flat its the worse,72 its ok and 68 its ok. These bearings must have some free play within them or they will destroy themselves, but that doesnt mean yours arent bad either. With the front end up supported under the a-arms grab the top and bottom of the tire and try to rock. If it exceeds 1/16th of and inch movement than look to see that it is the bearing itself. Sometimes its better to have the tire off and calipher outta the way to check these bearings. A slight movement is normal at this point, actual feel and see of rocking is bad. Noise when spinning shows a bearing wearing!! I never paid attention or you didnt say outright it was a Blazer. Its common among the 98+ since they went to this style suck *** bearing! Tires MUST be balanced well for these types units or it wil make it come tol light more often and worse!!

[Minitrucker]

Mine is an 02 S-10 and only in the body and seat I feel it, and it does get bad.

[OBI WAN]

OK back to square one. S10 Blazer or S10 Pickup?

[Minitrucker]

S-10 pick up- my bad.

[OBI WAN]

That TSB does not apply to your truck, you then do have a problem. Got AIM??

[Minitrucker]

It does apply to my truck, that is what they gave me.
No dont have AIM

[Minitrucker]

They told me to keep it quiet. Ha Ha well I guess I am if I dont tell where it came from.

[Minitrucker]

Jake????????

[OBI WAN]

Someone fudged it!!!! That TSB was out for all SUVand 4x4 vehicles using the front sealed bearing units and not for the ones using Timken adjustable bearings!! The 4x4's are the ones that made those bearings popular and I really dont think a 2 wheel drive pickup used them!! A vibration of this type on a 2wheel is not correct!

[Minitrucker]

So i am getting lied too? Is this why they said to keep it quiet? They screwed with it to make it look like it affects my truck?

[OBI WAN]

Thats not a valid TSB number, I would like to know whom gave that to you and from what source the information was released from. All my Data does not include any number of such and I have the GM and All Data links!!

[Minitrucker]

Try this one 1381844 Document ID #

[OBI WAN]

Nothing, Nada, no where!

I look at all the GM known vibration issues, the Caddy has them for lower control arm problems.
Sealed bearings which I allready discussed.
Some tire problems due to types of tires used
Light vibrations not felt at the steering wheel, but overall which can be only on extended cab models using carrier bearings

Those are the ones I can see that say either a rememdy straight out or ignore!!

[Minitrucker]

So do you think this was made up?

[OBI WAN]

OK " If it was myself" what would the Jedi do??

I'd call the number in the back of your owners manual that is for either customer complaints of the GM area rep to find out 100% for sure there is a known problem of such and no fix is needed or offered. If you cant find the number give me the state your in!

[Minitrucker]

Called GM customer service and they cant find that bulletin either.
I am so ****ing pissed

[OBI WAN]

Did you list a complaint???? That does need to be filed. They when you fiel one ask for the dealer also so they may contact him in order to remedy the problems using engineers working with the dealer to resolve it. If the dealer gives any flack the they will contact another dealer whom would be avialable to assists and do this!!
People really dont realize that a dealer can only make monies off warrenty issues when the actually find them. After many attempts to locate a problem there suppose to contact GM themselves for assistance. Some are reluctant to do so , so when money is not to be made they will drop out like this one did. Having it listed as a complaint and then making sure a G Rep has been notified WILL SOLVE the problem! Just a pain in the *** to go through!

[LEADFOOT]

"02" Blazer 2-door, Xtreme, I have that same kind of vibration. Its not real bad though. it feels like my tires are always out of balance a little. Some of the smoothest roads it won't do it on or does it just a little. The road can look perfectly smooth but I get vibrations like the road has a bunch of little bumps in it. I thought it was the suspension at first because I only had about a 1/4" clearence between the bump stops and the frame. I cut those a little a while back on still have the same problem. When I got my new tires put on I still felt the vibration a little and then the tires started to wear and then more vibration. Is there a fix for this problem. Change the bearings to something else?

[LEADFOOT]

I also have some play in my steering wheel. When I turn it about half way to the lock (either direction) it some play there. Anybody else have this? When I got the truck I took it to the dealer and they said it is normal. The tech checked some of the other s10 trucks and blazers that were on the lot and they did the same thing. I think the steering on these trucks sucks. Its too loose. I think thats what causes my tire wear problem.

[OBI WAN]

Exactly what I said earlier. These sealed bearings are the culprits and drives me ABSOLUTELY nuts. Bearings of these types need to be constantly cheaked upon about ever 25K. 50-100K is the average lifetime of these bearings. Just something to have to live with. My snows makes this even worse since the luggyness of the tires , but the summer Mastercraft Avenegers calms this down very good and only in theis 70 mph range do I really know its still there!

[LEADFOOT]

So is there a different bearing to buy to stop this madness.

[bvr775]

it says it's from the frequce of the tires at speed. Meaning that a sound is prodused by the tires. Guess it's kinda like a bass roadnoise. Thats the only thing I could thing of that would shake your rearveiw.
sound like B/S but worth a shot.

what kind of tires do you have?

[OBI WAN]

it says it's from the frequce of the tires at speed. Meaning that a sound is prodused by the tires. Guess it's kinda like a bass roadnoise. Thats the only thing I could thing of that would shake your rearveiw.
sound like B/S but worth a shot.

what kind of tires do you have?

Yes the tires do set off hamonics that get what little preplay set up in the bearings going. No other bearing offers a fix since these types must be preset with loseness! I can even go as far to say dont buy anything other than GM replacement ones either, the others just do not last!

[bvr775]

i thinck it's utter b/s, but let's play the tech game and blame it on something trivial instead of trying to find out how to fix the problem.

If your saying it's because of a defect in gms front end then i thinck we all need to get together and "MAKE" GM recall the trucks. GM is takeing a shortcut with a b/s excuse instead of fixing the problems.

there are enough forum and GM boards with enough member to make GM fix some of b/s they've pawned off on loyale buyers in the last few years. I've already sent in my mail to corprate about the crap I've been dealing with the 2 new millenium GMs I own. What's the use of haveing a reliable engine when the rest of the damn car and truck is in need constant repair. I got over 600K out of my first GM without any major issues. I got 110 miles out of the wifes car before the door fell off. After every thing I dealt with with the truck I told them to stick the car up their ass. I got 15K out of my truck before the main started leaking. 50miles after I got it back the coil went out I replases both ball joint at 22K then a cat right after that and my front door is warped(goes to court in june)

[OBI WAN]

The move to do this has few parts to it.

One its a SUV and wasnt meant to ride like a car. Its a utility vehicle which wasnt meant to be smooth in the first place. Second the SUV was really never meant to be a 2 wheel drive<<< This is the key factor of this problem. And 3rd was the Blazer X is just a freak of nature really. Who when the idea was approached actually could foresee something of this type being a hit. After all its a SUV, not a car etc. Yeah I know you'll all say otherwise, but this was really against the odds!

Now the real reason for the problem was a cost cutting move. The Blazer having to carry more passengers and weighs more than a pickup and also designed to carry a load or pull one on top, needed 2 piston front calipers. The 4x4 which also has these brakes uses a front spindle assembly where a normal spindle would not work. The axle shafts pass through the bearing hub assembly and these dont throw the oscilation out to cause this type of vibration. All they need to do was alter the base casting with no hole and build a bearing accordingly, this saved all kinds of hassles and created this problem. The 2 wheel setups didnt creat a whole lot of sales in the first place and really wasnt and idea that was even advertised to push. It needs really a whole new spindle arrangement like the pickups do that will carry the dual piston caliper to eliminate this all together! I cant foresee ever a recall on something that first isnt really dangerous and secondly shows to be speed sensitive to a point beyond speed limits!! WIth my summer tires in place wirh a good BUBBLE balance and not a SPIN BALANCE takes care of this and makes it ever so slightly noticeable. My winters really make this come to light and so could a tire miss balanced especially when like on the Blazer X's, people DO NOT WANT tire weights on the outside of the rims!

How do you deal with the whole realm of aspects???

[Minitrucker]

I am still waiting to hear from the GM rep. Yes I did file a complaint, the ass end of my truck shakes and feels like there is a hop, even at low speeds. Also get that "whomp,whomp,whomp" noise on and off the gas on the highway.

[OBI WAN]

Keep us informed and the REP should do you well!!

[EGWMIV]

I had a "small vibration" underneath my 2000 GMC 'noma, it had been going on for a week or two, and i couldnt figure out where it was coming from, so yester day i was a good boy, and added a quart of oil and one of tranny fluid, to see if it would help, and as i pulled out of the pep boys parking lot, the bracket on my center support driveshaft bearing housing broke, and now my drive shaft is sitting on my crossmember. Then i found this webpage https://shell7.tdl.com/~jags/Pages/Parts_S10-Driveshaft-Align.html
turns out the S10 and S15 trucks have impropery aligned driveshaft... not to mention that two years ago i had my entire driveshaft replaced cus the same thing happened, so dont take ur vibration lightly..... just a lil story and some friendly advice

[T Man]

Actaually I think what you were looking at was an alignment spacer for the V8 swap. it is to correct the offset caused by settin the V8 over to the passenger side to clear the brake lines and steering shaft. It crreates an offsetted pinion angle.

[Maximus]

There is nothing I hate more than a focking vibration.My S10 has one at right around the 60 to 65 area.It drives me nuts.I have been checking things on it as I can.Wheels and tires are fine not out of round,warped,or balance.Engine mounts and tranny mount is fine.Pinion angle is ok and u joints too.That's all I have checked so far but I will keep looking till I find it.So now I either go slower than 60 or faster than 65 lmao!!

[Minitrucker]

I hear ya Maximus thats the same as mine. Let me know what you find. I am still playing tag with GM.

[bvr775]

i just changed the factory idler arm at 44K cause it was completly worn out and it stoped viberating, but mine was viberrating up around 80mph

[cowboyrx]

There is nothing I hate more than a focking vibration.My S10 has one at right around the 60 to 65 area.It drives me nuts.I have been checking things on it as I can.Wheels and tires are fine not out of round,warped,or balance.Engine mounts and tranny mount is fine.Pinion angle is ok and u joints too.That's all I have checked so far but I will keep looking till I find it.So now I either go slower than 60 or faster than 65 lmao!!
I have the vibration between 35 and 40 mph and it's only when my foot is on the gas pedal. Is it related to the drive shaft balancing or bad U-joint? Where would I locate a drive shaft balancing place in Houston?

[Chrisvich]

way to ressurect a thread from the dead...this one dates back a few years...check the posting date. kinda wondering it myself too though as I have the same problem at around 55-60.

[Hammer Head]

Well when I had a Miata I had a simular problem.. turned out to be a common problem. It's what's known as 'cowl shake'. Once I stiffened my chassis the problem went away. Now you might be askin 'how does that relate to S trucks, dude?' & here's my answer.. you ever notice that the cab & the bed aren't attached? I believe if they were this would be a thing of the past. There's a few things you could do besides this though.. like the chassis stiffening bars/ strips used w/ the ZQ8 suspension pkg. Though some apps this isn't a sure fix. There's other things to check for like wheel balance & whatnot... sorry you had to subject yourselves to the ramblings of an old man.. ;)

[Mikz86TA]

Youll need to post some info in your signature. Like year, is it ZQ8 suspension, aftermarket lowered, ex cab and all that. There was an issue on some models. I read your profile so I know you have an ext cab which was included in this issue due to the 2pc. driveshaft. There is a angle correction kit availible. Heres a link and some info for ya to figure if this is your issue --->https://shell7.tdl.com/~jags/Pages/Parts_S10-Driveshaft-Align.html Hope this helps =) BTW, Welcome to The PLANET!!!!!