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 Page 1 of 2 12
Username Post: Frame Beaming Chevy        (Topic#126167)
CanuckShooter 
Member
Posts: 5

Loc: British Columbia, Canada
Reg: 03-10-06
03-10-06 06:32 AM - Post#891640    

I took delivery of my brand new 2500HD Duramax in March of 2003, my dream truck, after saving my coin for over 10 years I finally had my Chevy powerhouse best built longest lasting truck on the market. You can imagine the pride I felt when driving it home from the dealer, the power, the smooth ride..the air conditioning!! I was confident that my choice of a Chevrolet was the right one, after all it's not everyday a working man like myself can buy one of these premium Chevy Trucks!!

Well now that you know how I felt when I bought the truck, you can just imagine my chagrine when in the spring of 2005 my truck developed a very noticable bounce in the drive-train!! But I wasn't too worried, one of the front tires was wearing on the inside and with just over 50,000 km on the odometer the tires were showing wear and probably in need of replacement and/or balancing...so confident that I knew how to eliminate the bounce I went ahead and bought new rubber and had a wheel alignment done. You can imagine my surprise when the bounce was still there!! I couldn't imagine what else it could be so I booked an appointment at my local dealer to find out what was causing this uncharacteristic bounce. Well the dealer diagnosed 'cheap tires, cannot balance' and charged me $150, plausable I thought and back to the tire store...upgraded to Michelins $300 more...and still bouncing..so back to the dealer [refunded the 150]. The diagnosis?? Frame Beaming caused by harmonics in the frame, a 'normal conditon'!! What I say?? How can it be normal, I've never heard of such a thing? And it didn't do it when I bought it?? So what can I do about it? Call the Customer Service they say, so I do...again I'm told it's a 'normal condition' for the Sierra Trucks to experience Frame Beaming and that the severity of it varies between vehicles!! So now what you ask? Read in the back of your owners manual you'll see...in Canada you can enter into 'binding arbitration' to settle a dispute over warranty claims. They call it a normal condition, I call it a manufacturers defect, a significant difference of opinion.

I wish that I could end this story on a happy note, but I still have to go through the arbitration process, 60 to 70 days. Hopefully General Motors will stand behind their product and return my dream truck back to the smooth riding vehicle it was when I bought it and not make me wish I had bought a Ford!!

And that's my story for now.

 
ExaTorq 
Senior Member
Posts: 1296

Loc: Dallas, TX
Reg: 07-16-03
Re: Frame Beaming Chevy
03-10-06 07:17 AM - Post#891641    
    In response to CanuckShooter

Did the dealer do an EVA (electronic vibration analysis)?

Here's some info at this link:

http://www.automotiveforums.com/t335793.html

Personally, if it was my truck, I'd sell, and since this is a "normal" condition according to GM, I wouldn't feel obligated to tell the buyer about it either. Hopefully the buyer has done their research as well, and they know what they are getting into.
Brian '03 Tahoe 5.3L FFV/ Wester's 89/91 tune / Outlaw CAI


 
Ryan 
Senior Member
Posts: 432

Reg: 07-16-03
Re: Frame Beaming Chevy
03-10-06 03:11 PM - Post#891642    
    In response to ExaTorq

Welcome to the 21st century, where you will get screwed over, no matter how much money you put out . You wouldn't be any better off in a Ford or a Dodge my friend. I hope GM does pull through for you but I highly doubt they will or Ford or Dodge if you had the problem in one of their trucks.

 
Squasher 
Very Senior Member
Posts: 1726
Squasher
Loc: Northern California
Reg: 07-05-02
Re: Frame Beaming Chevy
03-10-06 05:00 PM - Post#891643    
    In response to CanuckShooter

What is "Beaming"

My truck sort of bounces while at highway speeds. I tought it was the shocks. I plan on changing them this week if it doesn't rain.
2001 GMC Sierra K1500 Z71 x/cab SLT 5.3L


 
CaptainK 
Senior Member
Posts: 8242
CaptainK
Loc: Maryland
Reg: 02-25-02
Re: Frame Beaming Chevy
03-11-06 02:56 AM - Post#891644    
    In response to Squasher

I'm with ^^^^^. I have never heard of this before but it sure sounds bad. I do hope for you that GM comes through and takes care of you in this matter.
'99 Silverado (NBS)


 
CanuckShooter 
Member
Posts: 5

Loc: British Columbia, Canada
Reg: 03-10-06
Re: Frame Beaming Chevy
03-11-06 05:12 AM - Post#891645    
    In response to Squasher

Beaming means your truck is bouncing...sort of like having a tire badly out of balance....or driving on a corrigated surface.

 
CanuckShooter 
Member
Posts: 5

Loc: British Columbia, Canada
Reg: 03-10-06
Re: Frame Beaming Chevy
03-11-06 05:20 AM - Post#891646    
    In response to ExaTorq

Quote:

Did the dealer do an EVA (electronic vibration analysis)?

Here's some info at this link:

http://www.automotiveforums.com/t335793.html

Personally, if it was my truck, I'd sell, and since this is a "normal" condition according to GM, I wouldn't feel obligated to tell the buyer about it either. Hopefully the buyer has done their research as well, and they know what they are getting into.




I don't know if they did an EVA...I would presume they would do whatever was necessary?? Sell it?? I don't think that's an option...at least $1000 per month of depreciation is something our financial situation cannot manage!!!

 
dcarey 
Contributor
Posts: 911

Loc: Mineral, VA
Reg: 01-01-03
Re: Frame Beaming Chevy
03-11-06 06:14 AM - Post#891647    
    In response to CanuckShooter

Can't say I've heard of this one either, or know anybody that has this particular "condition" Does it do it at any speed, or a particular speed Does it do it only when the bed is empty, or with a load in it as well Towing
Dave 2005 5.3 Reg Cab Shortbed 4x4


 
ExaTorq 
Senior Member
Posts: 1296

Loc: Dallas, TX
Reg: 07-16-03
Re: Frame Beaming Chevy
03-11-06 11:13 AM - Post#891648    
    In response to CanuckShooter

Quote:

I don't know if they did an EVA...I would presume they would do whatever was necessary??




I wouldn't be so quick to assume this. I sometimes deal with GM techs who don't have a clue how to do a certain procedure, and I will have to explain it to them. You need to call the dealership and ask. They won't volunteer the information.

Don't go to a dealership with a problem without first having researched it yourself, even if the problem is under warranty! Remember, these techs work on scores of vehicles every week, and aren't necessarily the experts when it comes to your truck make/model.
Brian '03 Tahoe 5.3L FFV/ Wester's 89/91 tune / Outlaw CAI


 
WVRidgeRunner 
Very Senior Member
Posts: 2159
WVRidgeRunner
Age: 47
Loc: This week: Hill AFB, UT
Reg: 03-20-04
Re: Frame Beaming Chevy
03-17-06 05:52 AM - Post#891649    
    In response to ExaTorq

I wonder if that is what my truck does?

I would describe it as "Bucking like a mule", it has always done it. I just chalked it up to "3/4 ton mule" standard behavior...
WV Ridge Runner
- 05 Impala LS
- 03 Black Silverado 2500HD 4X4 LB CC LT
- 93 S-10 4X4 Blazer (Tahoe LT)
- 79 Monte Carlo
- Harleys, 4-Wheelers, etc...
- New! 07 Cobalt


 
normang00 
Member
Posts: 25

Loc: Ohio
Reg: 01-13-04
Re: Frame Beaming Chevy
03-17-06 12:46 PM - Post#891650    
    In response to CanuckShooter

Canuck,
I'm no expert by any means, but I've been driving Chevy pickups for over 20 years and I've never heard of or seen anything like this. Frame flex is one thing I have seen, caused by bad roads and heavy loads, etc. My 1997 longbed crewcab flexed all over the place, but there was no "bouncing". If I'm not mistaken, the newer trucks have formed front clips and much stronger frame boxing. That would mean less flex and a much more rigid structure. I'm interested in seeing where this leads because I have plans to by a new regular cab 2500 Duramax 4x4....
Thanks, Norm

'65 Nova 4-door "Plain Jane"
'04 Suburban LS 4x4


 
ExaTorq 
Senior Member
Posts: 1296

Loc: Dallas, TX
Reg: 07-16-03
Re: Frame Beaming Chevy
03-17-06 08:08 PM - Post#891651    
    In response to normang00

My '02 Silverado 4x4 would bounce almost uncontrollably over certain bumps in the road at certain speeds. I found out the hard way after almost taking out a guard rail on a curve in a road after hitting a "double-bump" going 30 MPH. The rear axle just started bouncing on its own and skittered across a lane of traffic before I was finally able to get it facing in the right direction again. Scary stuff.

After the first time, I would experiment over the same bumps at different speeds. Above 35 MPH, my truck wouldn't bounce but once. It was only at 30 MPH. I found some railroad crossings that would get the same bounce going as well.

Yeah, it's for real...
Brian '03 Tahoe 5.3L FFV/ Wester's 89/91 tune / Outlaw CAI


 
silvervortek 
Senior Member
Posts: 732

Loc: Georgia USA/ west coast I...
Reg: 10-10-04
Re: Frame Beaming Chevy
03-18-06 04:13 AM - Post#891652    
    In response to ExaTorq

I did notice when the torsion bars are wound up fully the front of the vehicle is much more lightly to bounce especially at highway speeds.Even at slow speeds.
I wound the torsion bars up recently and got an alignment done. City driving ,change/coins in the door panels rattles which never did before/ it sorta feels like the tire is out of round. Although the tires have less than 3000 miles on them and i have never locked up the brakes.
While towing and going about 70 on highway i hit a small bump on a corner and the front of the truck rose up and for a second i thought i was loosing traction on the front wheels > im going to wind those bars back down at least 3 or 4 turns.
I have a 99 silverado, regular cab ,long bed ,was 4 wheel drive,has auto and 5.3 vortek engine. one hundred and thirty


 
normang00 
Member
Posts: 25

Loc: Ohio
Reg: 01-13-04
Re: Frame Beaming Chevy
03-18-06 04:15 AM - Post#891653    
    In response to ExaTorq

Maybe this is some kind of harmonic resonance occurring in the frame? I haven't seen or felt anything like that in my '04 Burban, which I think has the same frame. The only difference is that I have a trailing/coil arrangement rather than leaf's in the rear.
No matter what GM states, this isn't "normal", but is a design defect if it is true. Maybe they tried to make the frames TOO stiff? My old truck
Considering the loads I was accustomed to carrying comfortably in a '97 3500, I'd be really concerned if this happened to me in a new truck.

'65 Nova 4-door "Plain Jane"
'04 Suburban LS 4x4


 
Squasher 
Very Senior Member
Posts: 1726
Squasher
Loc: Northern California
Reg: 07-05-02
Re: Frame Beaming Chevy
03-18-06 05:02 AM - Post#891654    
    In response to CanuckShooter

If I understand this right. It sounds like a poorly designed frame that acts like a baby food jar lid that pops back and forth when it is stressed passed it's natural state. Maybe the torque of the drive train twists and pops the frame back and forth.

It may be "normal" to a poorly designed frame. But it's not right
2001 GMC Sierra K1500 Z71 x/cab SLT 5.3L


 
silveradolsz7153 
Senior Member
Posts: 929

Loc: Lawrence, KS GO JAYHAWKS
Reg: 11-01-03
Re: Frame Beaming Chevy
03-18-06 09:45 AM - Post#891655    
    In response to Squasher

It won't happen in a suburban. The body is one solid mass the whole length of the frame. Pickup bodies are two pieces that move independantly. The flex(beaming)occours between the cab and the bed (where the frame is not boxed). The longer the truck, the more likely it is to happen. How many trucks have you seen on the road with frames that were obviously bent directly between the cab and bed? I saw one just this morning. I have seen it in all makes and most of them had absoulutly no body damage. The end result of hitting a bump with too much load in the truck. Don't overload it and it should live a long life but you will not get rid of the flex without boxing the frame.

Bill
If you don't like your job, don't go on strike. Just go in every day and do a really half a$$ed job. That's the American way----Homer Simpson


 
dcarey 
Contributor
Posts: 911

Loc: Mineral, VA
Reg: 01-01-03
Re: Frame Beaming Chevy
03-18-06 04:01 PM - Post#891656    
    In response to silveradolsz7153

Wierd thread. Mixing 1/2 tons and 3/4 tons. SUVs and Pick ups. Canuck Dude owns a truck for over two years and pops this thread I'm confused People cranking thier T-Bars, people with lifts What's it about Is their a problem
Dave 2005 5.3 Reg Cab Shortbed 4x4


 
ExaTorq 
Senior Member
Posts: 1296

Loc: Dallas, TX
Reg: 07-16-03
Re: Frame Beaming Chevy
03-18-06 09:22 PM - Post#891657    
    In response to dcarey

No lift, no SUV here, chief. Just a stock GM pickup that has some wild harmonics at certain speed on certain roads. It's just one of those things that PU drivers notice that will never see the light of day as long as GM has its way. Frame beaming (I prefer the previous poster's reference to "harmonics") is just a fact of life with full-size Chevy owners, one that will never be addressed by GM due to the enormous costs involved with retrofitting the full-size frames.

It's really not a big mystery, dcarey. Forums like CT are the worst enemy of companies like GM, who have no desire to deal with an intelligent group of owners who compare notes on forums like CT.
Brian '03 Tahoe 5.3L FFV/ Wester's 89/91 tune / Outlaw CAI


 
nodakbassmaster 
Super Senior Member
Posts: 4397
nodakbassmaster
Loc: Poorhouse, SD
Reg: 03-14-04
Re: Frame Beaming Chevy
03-18-06 09:47 PM - Post#891658    
    In response to ExaTorq

I also had never heard of this before this thread, although I grew up around trucks, 1/2 and 3/4 tons mostly.... Could one weld some extra cross braces to the frame and see if it helps?
Richard

'09 Silverado 3500HD CC LB D/A LTZ Z71, Mods Annonymous Member #3


 
JSSuper 
Member
Posts: 67
JSSuper
Loc: Utah
Reg: 04-07-05
Re: Frame Beaming Chevy
03-19-06 11:01 AM - Post#891659    
    In response to nodakbassmaster

I think I've read about this issue before myself. Something about bumps/imperfections in the road progressing through the suspension and into the frame which acted like a tuning fork.

I'm currently looking at upgrading my beloved '98 X-cab Z71 for an '06 Crew Z71. I've also looked at a Dodge briefly and also looking at a Ford. Needless to say, I came across an interesting vid clip talking about Kinetic (Spelling?) energy through the rear suspension amplified into the frame. This vid is a really dramatic version of what, I think, you are talking about with this thread.

Its an interesting watch needless to say and IMO the Chevrolet handled it farily well, probably second best of the group. The Nissan held fair also.
The best one is the Toyota

Anyhow, its the Silver Creek proving ground: Click on "Road Test" on the left column. Then click "Silver Creek Shootout" under Supporting Evidence.

As I said, it could be an over dramatized version of what you are dealing with.

SILVER CREEK
2006 Silverado Crew-Cab Z71.


 
nodakbassmaster 
Super Senior Member
Posts: 4397
nodakbassmaster
Loc: Poorhouse, SD
Reg: 03-14-04
Re: Frame Beaming Chevy
03-19-06 02:14 PM - Post#891660    
    In response to JSSuper

I'm not seeing it...
Richard

'09 Silverado 3500HD CC LB D/A LTZ Z71, Mods Annonymous Member #3


 
dcarey 
Contributor
Posts: 911

Loc: Mineral, VA
Reg: 01-01-03
Re: Frame Beaming Chevy
03-19-06 03:07 PM - Post#891661    
    In response to nodakbassmaster

Actually, that would be Master Chief Brian Still, I don't doubt you, or others, have had a particular problem. I drove a 2000, and now a 2005, and NEVER experienced this particular issue, and know of no one personally that has . That's all I'm saying. Maybe because mine are Regular cab shortbeds Besides that, I'm just suspicious of the orinal poster. Can't quite figure why he needed his A/C on in March in British Columbia It just appeared to me that multiple issues were beginning to get lumped into the thread.
Dave 2005 5.3 Reg Cab Shortbed 4x4


 
JSSuper 
Member
Posts: 67
JSSuper
Loc: Utah
Reg: 04-07-05
Re: Frame Beaming Chevy
03-19-06 04:30 PM - Post#891662    
    In response to nodakbassmaster

The link to the video I talked about in the previous post actually appeared at the bottom of my post rather than where I had intended it.... Anyhow click on "SILVER CREEK" above.

Actually I havn't had any problems of such and actually very little problems overall. However I have read threads on similar issues a while back though it may not have been in this forum.
2006 Silverado Crew-Cab Z71.


 
redvett01 
Senior Member
Posts: 1151

Loc: Grayling, MI
Reg: 10-23-03
Re: Frame Beaming Chevy
03-20-06 05:41 AM - Post#891663    
    In response to Squasher

When you crank the torsion bars all the way up you have basically removed the float in the suspension since the suspension cannot go up only down and it needs to have float for the shocks to work. Crank the bars down to the middle and you will solve the problem.
K1500 04 Silverado EXT


 
DetroitDan 
Senior Member
Posts: 613

Loc: NH
Reg: 04-10-04
Re: Frame Beaming Chevy
03-22-06 04:14 PM - Post#891664    
    In response to redvett01

so is it harmonics, as in a vibration, or actual bouncing, which seems to me more like a suspension induced condition?
"Turn signals, they're not just for smart people anymore" 66 Caprice 2 dr 327/350 66 Impala 2 dr sport, 5.0 HO, 2004r, SOLD 69 Camaro 350/350, daily driver SOLD


 
redvett01 
Senior Member
Posts: 1151

Loc: Grayling, MI
Reg: 10-23-03
Re: Frame Beaming Chevy
03-23-06 11:56 AM - Post#891665    
    In response to DetroitDan

If you dont use a load force balancer on your tires & wheel combo your just spitting in the wind so to say. You need to have them done correctly and you probably wont have any problems any more. Been there done that. Here is the site to fine a Hunter 9700.
http://www.gsp9700.com/pub/search/findgsp9700.cfm
If you have a bad tire or wheel this balance will find it.
K1500 04 Silverado EXT


 
silvervortek 
Senior Member
Posts: 732

Loc: Georgia USA/ west coast I...
Reg: 10-10-04
Re: Frame Beaming Chevy
03-24-06 06:00 PM - Post#891666    
    In response to redvett01

Thanks for bringing that system to everyones attention i will look into it and hopoefully can get the tires balanced with it. have you any idea how much it costs to get wheels done is it much more expensive than the slow revolving tire balancing machines.
I have a 99 silverado, regular cab ,long bed ,was 4 wheel drive,has auto and 5.3 vortek engine. one hundred and thirty


 
chevyhoss 
Member
Posts: 2
chevyhoss
Reg: 03-25-06
Re: Frame Beaming Chevy
03-25-06 09:00 PM - Post#891667    
    In response to JSSuper

I have a 05 xcab Z71 with 7000 miles I just purchased in Dec. Took it to Dealer and complained of bounce in truck, they road forced the tires and found two bad tires. Replaced the two tires and still does it. Took to Dealer where I bought it and they said frame beaming (live with it) I said I don't think so. Whent to another dealer where I had tires replaced and made appointment to get checked again. This dealership seems to want to help me so we will see what happens. I have a service bulletin on frame beaming I will be glad to email it to anyone that wants to see it. Let you know what I find out.

 
dcarey 
Contributor
Posts: 911

Loc: Mineral, VA
Reg: 01-01-03
Re: Frame Beaming Chevy
03-27-06 12:55 PM - Post#891668    
    In response to chevyhoss

Why e-mail it Post it for all to see. Nothing personnal, but you can understand my apprehension of a post by a first time poster, who is backing up the claims of another first time poster. Neither with specifics of the problem I checked around other Chevy truck forums, and found nothing about this Is this the only forum you guys have posted this in If it's a legit problem, spread the word boys.
Dave 2005 5.3 Reg Cab Shortbed 4x4


 
silvervortek 
Senior Member
Posts: 732

Loc: Georgia USA/ west coast I...
Reg: 10-10-04
Re: Frame Beaming Chevy
03-27-06 01:14 PM - Post#891669    
    In response to chevyhoss

Over the weekend/ driving and the truck was very hard to keep it going straight it was travelling from side to side.
I heard a noise on the front passenger wheel, i took the wheel off. the bolts on the upper swing arm where it is bolted on to the frame were loose and one nut was ready to fall off. I had an alignment done a month or 6 weeks ago at AA tire. I went back to their shop and got it re aligned.
its running straight new.
Any way i set off for the hunter 9700.
i didnt find the hunter 9700. However this shop had a machine that spins the wheels on the truck and balances them.It takes a bit of time but they put tiny weights on the inside and outside of the rim where they are needed. I used to have those huge 4 inch long weights.
They raised the back wheels off the ground and put the truck in drive and got both those wheels up to approx 60 mph.[i didnt think that was possible with the g80 locker but they had no trouble or banging or noise]. It rides smooth now.
I have a 99 silverado, regular cab ,long bed ,was 4 wheel drive,has auto and 5.3 vortek engine. one hundred and thirty


 
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