Guys my 06 has developed this terrbile POP! noise that seems to be coming from the steering column or floorboard. It occurs mostly when turning left and the steering wheel has past a certain point. It does it when turning right but not as bad.

What could this be? I am fixing to get my Cognito lift and I plan to rebuild the whole front end but I am just curious what this could be.

Mines doing the same thing right now and i'm almost pretty sure i've pinpointed the problem to the body mounts.. Its driving me crazy. I found a post where it said to torque to 74ft/lbs, i did no better but changed the sound a little. I think they are bad.. Warranty!!

From a stop or slow speeds I do not notice it

I think it could be body mounts or my nerf bars, what do i need to check? Where are the body mounts?

check the ball joints,pitman, idler arm and tie rod ends

I think it could be body mounts or my nerf bars, what do i need to check? Where are the body mounts?

I just tightened the body mounts. Most were tight except drivers front. I do have nerf bars. I read several threads that they were cause of noise. I might just take them off too.

Body/Frame - Pop/Clunk Noise On Turns/Bumps
Bulletin No.: 06-08-61-003B
Date: January 22, 2008
TECHNICAL
Subject:
Underbody Pop or Clunk Type Noise while Turning or Driving on Uneven Road Surfaces (Install Body Mount Insulator)
Condition
Some customers may comment on a pop or clunk type noise while turning or driving on uneven road surfaces. This noise can be heard and/or felt at either the drivers or front passenger floor pan area.
Cause
Under certain conditions normal movement between the frame and body mount may cause this noise to occur.
Correction
Install an insulator at the right and left side # 1 body mounts. The insulator should be installed between the upper portion of the body mount and the frame bracket. The # 1 mount is the mount located just under the A-pillar.



WHERE DO I GET THIS INSULATOR? I wouldnt mind throwing it on to try.

ttt

Anyone know where I can get and how to install the insulator from the TSB in post 7?

Removed the nerf bars mounted to the body mounts and the POP is gone!

OK Well I have noticed my pop is back. I am going to re torque the body mounts. Where can I get the insulator they mention in the TSB. Anyone got a pics of it?

Wreed....I had the same exact issue after my cognito lift was installed although the lift I doubt has any relevance to the noise. Turns out mine was the body mounts.

Wreed....I had the same exact issue after my cognito lift was installed although the lift I doubt has any relevance to the noise. Turns out mine was the body mounts.


Ive had pop before the lift.

What did you do to fix?

I used to have nerf bars a few years ago and removed them with a 1/2" ratchet. Completely forgot that I left one bolt half way removed with the bracket still installed. Hit it with the impact and noise was gone. Lucky me....damn noise drove me nuts man I could hear it all under my feet. Stop and go. turning. pop and clunk. Replaced steering shaft, pitman/idler arm still didn't go away. Hell I was so fed up with the noise I hooked to a sled hoping whatever it was would break....Don't go blow a bunch of money replacing unnecessary stuff like I did lol

Im not I know its the body mounts. I will hit them with a torque wrech again and see if it stops.

Does anyone know if I can still install the insulator to help my pop? I do not have nerf bars anymore that attach to the body mounts. If so what is the part number?

you might try replacing the factory rubber bushings with the poly body mounts. they have less flex and shouldn't allow the pop to come back.

you might try replacing the factory rubber bushings with the poly body mounts. they have less flex and shouldn't allow the pop to come back.


Where do I get more info on this?

you might try energy suspensions thats were i got the set for my last truck.

Well the front 2 body mounts lost their torque. I torqued to 100 lb ft this time and did the other 4 to 80 lb ft.

If this does not solve it I will order the Energy suspension bushings.

Did the re-torque fix the problem? I am curious as I am having a bad popping problem too.

Yep seems to have fixed it for now, try it! and let us know

I had the load poping sound myself. I found the 4 bolts the hold the cross plate to hold the lower A-arms together, that is located under the motor were not as tight as they should be. I was able to get a half turn on all four. The poping sound is no more. I did have to use a cheater bar to crank down on them. Try that.

Wow well thats good the body mounts fixed the problem for you Wreedlbz. I tried re-torquing the body mounts and it didnt fix the problem. I'll try re-torquing the front crossmember next.

Ive re torqued my body mount bolts a couple months ago. It seems they work themselves loose.

Had same problem with mine a while back, ended up having to retorque bolts that connect support crossmember for torsion bars to chassis. Problem fixed

Finally I fixed the problem. It ended up being the front and rear cross members because I have a skyjacker 3". they bolts from the cross members to the frame were no about as tight as you could get them with a 1/4" ratchet. Unbelievable.

That is scary! My lift bolts are all tight.

You're tellin me! I'll remember to check those regularly. Thanks for the help though

Dont waste your time with the "Isolator" wreed, It is just a really thin plastic washer the size of the rubber body mount bushing.

Dont waste your time with the "Isolator" wreed, It is just a really thin plastic washer the size of the rubber body mount bushing.



So your saying it does not work? I have already ordered them....

I've read this whole thread and still haven't seen a part# for the isolators. I'd like to give it a try if it works.

Part Number:15899719

Mine doesn't seem to pop or clunk, but when I turn right and/or hit a bump something in left front (driver's side) squeaks? What the heck could that be?

bushings, shocks, etc

I think it is something in the suspension because once the truck gets back straight and not bouncing the squeak goes away. The dealership said everything was in factory spec but I'm going to have them look harder. lol From the sound of it I don't think it would be a body mount but I don't know.

Just found this thread.

All of you seem to have one thing in common. Young trucks. Is this a problem in older trucks too? I have a '94 K2500 suburban that has the same problem(s). Turning left gives you a wretched pop/clunk. Makes me think my wheels are gonna fall off. Turning right isn't as bad, but sometimes happens. If I baby it that helps some. Unfortunately, I have no idea what yall are talking about half the time (nerf bars? body mounts? isolators? would it kill you to post a diagram?) so i'll be headed to the mechanic shortly.

ps, sound seems to come from right front wheel well.

I honestly dont know how they would. They are paperthin. I did alot of these when i was at the dealership and i think that the main problem was that the body mounts just werent tight enough. Pull your body bolts out and put some red loctite on them, They come with blue from the factory and once they get tightened or loosened the loctite no longer applies.

I honestly dont know how they would. They are paperthin. I did alot of these when i was at the dealership and i think that the main problem was that the body mounts just werent tight enough. Pull your body bolts out and put some red loctite on them, They come with blue from the factory and once they get tightened or loosened the loctite no longer applies.


What should we torque to? 100ftlbs seems to fix the pop, but it is much higher than the spec calls for.

I had a pop in mine at 50k. Had the front cross member, four bolts, loosened and re-torqued and not a pop sense.

I thought there was a TSB out for this issue in 2004 or so with the solution being the re-torque of the cross member bolts? no?

I had a pop in mine at 50k. Had the front cross member, four bolts, loosened and re-torqued and not a pop sense.

I thought there was a TSB out for this issue in 2004 or so with the solution being the re-torque of the cross member bolts? no?


That is one issue, not mine!

One other issue that contributed to my pop was something I found and fixed on my own.

The torsion bar bolt locator wasn't properly postioned straddling the cross member. In the before shot the lip of the locator was actually sitting on top of the cross member. In the after shot with some help it was coaxed to properly straddle the cross member. This helped with some of my pop before the final fix of re-torque of the front four cross member bolts.

Before.....
http://martinfamily.homeserver.com/public/DSC02119.JPG

After........
http://martinfamily.homeserver.com/public/DSC02124.JPG

Derek M, Thanks for the pics. I will check mine tonight.

I have a 100ft/lb torque stick for my impact gun that i would use on them. So roughly 100/110 ft/lbs.

Yep that is what I did, so far so good.

Does anyone have any experience with the insulators that are supposed to fix the pop you install in the body mounts? I just got mine from GM and they are paper thin. I dont understand how they do anything?

Told ya so, lmao. Honestly i dont think they did anything i think the real solution was the torque the bolts were getting after installing the "insulators".

Well I drove the truck today after torqueing the bolts to 100ft lbs. On one hard turn I felt the a pillar body mount pop real hard, now its not doing it as much but i can still hear and fell it slightly.

Anything else to try? I didnt use red lock tite this time.

these insulators are a joke... Should I even waste my time?

Try the energy suspension body mounts. Those should work well, surely someone here has used them?

Just fixed my "POP" tonight although I knew what it was. I had a right side Cognito HD Inner tie rod go out on me a few months back and finally got around to changing it out tonight along with Cognito's updated torsion linkage that did away with all the hiem joint nonsense, never liked that since I put it on 3 years ago but it held up with flying colors.

Check out your inners, that could be the culprit. Mine would pop especially turning up curbs and rough pavement.

Oh, BTW, it was my fault for not burping the bag enough on the original HD Inner.

Ive pretty much narrowed it to the body mounts. I can feel it directly under my foot where the a pillar mount is.

try the energy suspension body mounts and locktite the bolts.

How hard are they to change out?

I have an 08 with about 50k on it and for the last 10k miles or so i have noticed the "pop" especially at low speed or stopped backing in and out of parking spots, etc.

I had a friend turn wheels back and forth and such while i was underneath shaking everything down, narrowed it down to the alum. plate directly under the engine. You can feel a very noticiable "pop" in the plate and no where else. If i just take this plate off and re-tourqe the bolts are those the 4 crossmember bolts others in this post have spoke of? Really want this to go away!

Thanks!

I have an 08 with about 50k on it and for the last 10k miles or so i have noticed the "pop" especially at low speed or stopped backing in and out of parking spots, etc.

I had a friend turn wheels back and forth and such while i was underneath shaking everything down, narrowed it down to the alum. plate directly under the engine. You can feel a very noticiable "pop" in the plate and no where else. If i just take this plate off and re-tourqe the bolts are those the 4 crossmember bolts others in this post have spoke of? Really want this to go away!

Thanks!


Can you post a pic of what you are talking about?

My pop is only from the a pillar body mount I believe. None of the others do it.

it's easy, all you need is floor jack, a ratchet, some sockets, and a 4x4. you take all the body mounts loose but leave the bolts in on one side take all the bolts out of the other. lift the body with the floor jack and the 4x4 about one inch. remove the body mount and replace with new one. lower body and replace bolts but leave loose. repeat on other side. lock-tite all bolts and torque to spec. done enjoy nice "pop" free ride.

it's easy, all you need is floor jack, a ratchet, some sockets, and a 4x4. you take all the body mounts loose but leave the bolts in on one side take all the bolts out of the other. lift the body with the floor jack and the 4x4 about one inch. remove the body mount and replace with new one. lower body and replace bolts but leave loose. repeat on other side. lock-tite all bolts and torque to spec. done enjoy nice "pop" free ride.


Do you have the Energy suspension body mounts?

Since torqueing I think my pop is worse, It is not as loud but occurs more often now.

I was thinking of removing my a pillar body mount bolt to see if the pop went away. What do you guys think.

Oh and I am gonna order the Energy mounts this week I think.

Guess what guys, I removed the lower mount bolt and lower piece of rubber, , NO POP!!!!!!!!!!!!!!!!!:eek::eek::eek::eek:

So you isolated it to the middle set of mounts? Not the front pair, not the rear pair but the middle pair?

Did you find a more permanent solution, or are you riding around on 4 body mounts? :D

I installed energy mounts, better ride and no more pop.

noticed this same noise happening more frequently. Have not yet had a chance to locate but there is some good info in here that I should not have a problem doing so. Im hoping its something I cant easily identify.
Mine happens pulling into my driveway or gf's driveway which are both lower than the streets we live on, so over a little curb, and down, left or right I hear the pop. Also, going straight down the road, if i cut the wheel back and forth left and right, I can make it pop at my will. Hoping its the body mounts so I can easily tighten them.

so, went under the truck last night to find the passenger side body mounts have some type of plastic spacer, which is paper thin, on the top of the mount. The driver side does not have these. I didnt have time to inspect the tightness of the bolts, but i'm going to tonight. If they are loose i'm running them out and putting lock tite on them and back in they go.

so, went under the truck last night to find the passenger side body mounts have some type of plastic spacer, which is paper thin, on the top of the mount. The driver side does not have these. I didnt have time to inspect the tightness of the bolts, but i'm going to tonight. If they are loose i'm running them out and putting lock tite on them and back in they go.


Check out Energy Suspension Body Mounts, cheap and way better than stock!

What's cheap?

$120 bucks or so i believe for all 6 mounts.

Pops worse when its raining? strange.

so i tightened the body mounts just about as tight as I could get them. They were not loose but I tightened them up a good bit. After I did that, it didnt rain for a few days so I couldnt do a real test. Today it was a monsoon and low and behold it started popping again. I guess back to the old drawing board.

so i tightened the body mounts just about as tight as I could get them. They were not loose but I tightened them up a good bit. After I did that, it didnt rain for a few days so I couldnt do a real test. Today it was a monsoon and low and behold it started popping again. I guess back to the old drawing board.


Energy Mounts. I am 22, and drive my Dmax like it was stolen. Used to pop around every corner, pop is GONE after energy body mounts.

That makes absolutely no sense what so ever, i mean i appreciate the help but if the dam things are tight, how the hell are they still moving and making noise? Worn out on the inside? Just blows my mind to have a 30k plus truck with 50k on it and have worn out body mounts.

That makes absolutely no sense what so ever, i mean i appreciate the help but if the dam things are tight, how the hell are they still moving and making noise? Worn out on the inside? Just blows my mind to have a 30k plus truck with 50k on it and have worn out body mounts.


Man I cant explain it. I did the same thing you did, tighten them until they wouldnt move anymore. They still popped, its what the mount is made out of. Replaced the energy mounts and POP is gone and ride is 100% improved. When I removed my mounts the drivers a pillar that the pop comes from was falling apart and I only have 50k miles on the truck!

I too agree with you, I own a Ford and a Chevy. The Ford is constructed with MUCH better quality.

Its just a shame because drive train wise, so far, GM is great. I have no quirks, complaints about anything related to the drive train. But little odds and ends like this just piss me off to no end. I wish I knew who had the truck before me and what they did with it. I do know it was wrecked for sure, How bad is beyond me. Didn't show up on carfax so they must have not turned it in so I cant imagine it being horrible, UNLESS the dealer I got it from bought it wrecked and just threw it together. My doors dont shut right either.

Yep I agree, Dmax and Allison are perfect, everything else not so much...

Take the a pillar body mount bolt out and drive around and see what its like.

take the bolt out only and leave the mount? Whats that going to get me? Probably a lost mount lol. Where did you find those body mounts for 120 at? summit has them for 183.
I dont have the duramax with allison, i've got the 6.0 with nv4500 manual trans and I have zero complaints.

The mount has two pieces, take the bottom out when you remove the bolt. You will not be able to remove the top part of the mount.

this is what you need:

http://dmaxstore.com/index.php?main_page=product_info&cPath=23_173_194_196&products_id=244

but when i change them i'll change both correct? I mean both pieces.

but when i change them i'll change both correct? I mean both pieces.

yep you will need to jack the cab up one side at a time. Watch your fingers when pulling out that top mount!!!!!

thanks dude, i'll take that bottom one off on both sides and see whats up. Will i visibly see the issue?

thanks dude, i'll take that bottom one off on both sides and see whats up. Will i visibly see the issue?


No not really. My mounts were in bad shape though.

Any Update?

No nothing yet. I've been hunting the over the past week so I haven't had much time for anything else. What kills me is that it will only do it when its raining. Its been dry for almost a week now and it hasn't done it yet. Guranteed tho next time it rains, it will be popping away. Does that make any sense to you because it surely makes none to me.

so,
i put some running boards on over the weekend that a buddy of mine gave me. After removing the lower body mount I noticed that they are complete pieces of shit. They are hollow, wtf is up with that???

And now do you believe me?!?!?

Yes as a matter of fact I do, not that i didn't but this is proof.
My 94 ford ranger has solid mounts, upper and lower, where an 06 HEAVY DUTY pickup does not. UN believable.

Replaced my cognito tie rods with the rare parts ones, and now all my front end popping and clunking is gone:D

hey wreed. i heard someone say that the poly mounts make the truck shimmy and shake and shutter more. Is this true?

Does the cab shake and vibrate with the poly mounts?

Nope they are awesome!

got pics of them installed?

Sorry man I sold the truck the other day!

1st. what did you torque the body mount bolts to?

2nd. getting another chevy?

1. I torqued to factory spec. I will pull my 06 GM C/K pickup manual out in a second and tell you exact torque spec.

2. Possibly. I am just driving my F150 now. I just did a complete brake job on it today. It has been very good to me.

GM Manual says 55 lb ft. I know I hit mine with the torque wrench easily to 70 lb ft.

you wanna get rid of the manual?

whats your offer? everythings for sale!

Oh and about the cab mounts, they were probably the BEST upgrade in ride quality I did. Body roll was non exisitent.

i saw a while back some guy complaining that they sucked and that everything vibrated and shuttered.

So that is why i am kinda skeptical

Trust me, try them. You can get them for under $200. They are 100x better.

yea im gonna order them. Seems like a good start. about that manual. What did you pay?

i am gonna hang on to the manual for now.

hey wreed out of curiousity y did u sell ur rig?

Wanted a change and a 4x4 next time.

wreed did you have steps mounted with the poly body mounts?

If so did you need longer bolts?

Thanks

no i did not, i had nfabs that bolt to the body.

i know this is old, but here's my experience with the pop.

when i turn full left at slow speeds, i get a good popping under the floorboard, about 4 or 5 pops. if i straghten out and turn left again, it will not pop. only when i turn right will it then pop. so, whatever it is, it's shifting from one side to the other. i can drive down the road and wheel the truck left and right, and i will get popping each turn.

i believe its the body mounts, but i've failed to find a fix.
i tried retorquing them...that didn't help.
tried to poly mounts...didn't pop as much, but still popped. ride was terrible. everything rattled. potholes were back breaking.
tried putting back stock mounts filled with silicone and used the plastic washers...still pops.

since the poly mounts helped a little, it still makes me believe its the body mounts, but i'm going to retorque other bolts just to eliminate anything else.

Mine has been doing this and I'm almost positive it is from my nerf bars.

Oddly enough mine quit making the "pop" when turning left or right, after I installed my nerf bars. Go figure.

Oddly enough mine quit making the "pop" when turning left or right, after I installed my nerf bars. Go figure.

That is funny. Mine didn't do it at first, then I got a new set and they changed the mounts. The front mounts actually touch the frame. I can feel quite a bit more vibration now and it has been popping, never did it before.

i know this is old, but here's my experience with the pop.

when i turn full left at slow speeds, i get a good popping under the floorboard, about 4 or 5 pops. if i straghten out and turn left again, it will not pop. only when i turn right will it then pop. so, whatever it is, it's shifting from one side to the other. i can drive down the road and wheel the truck left and right, and i will get popping each turn.

i believe its the body mounts, but i've failed to find a fix.
i tried retorquing them...that didn't help.
tried to poly mounts...didn't pop as much, but still popped. ride was terrible. everything rattled. potholes were back breaking.
tried putting back stock mounts filled with silicone and used the plastic washers...still pops.

since the poly mounts helped a little, it still makes me believe its the body mounts, but i'm going to retorque other bolts just to eliminate anything else.

I have same exact problem, would describe it exactly the same way. I'm thinking either body mounts or tie rods....but I don't get any pop when I jack it up and wiggle the wheels side to side.

Did you try the poly cab mounts?
Whatever happened to the new liquid filled rear cab mounts?