Popping in front end

kxracer · Post by **kxracer** » Mon Jun 15, 2009 11:21 am

Before someone says search, I did. I think it may be my ball joints, but it doesn't sound like I have the same problem most others do. Sometimes (not all the time) when I turn, I get one fairly loud pop. It is far more likely to happen when the suspension is flexed a little bit and the wheels are turned sharp, such as pulling up into a driveway. Also, if I get on my brakes hard enough, such as when you stop to not hit a deer, it will sometimes pop then to. It only pops once per time, so IDK what it is. Any help would be appreciated.

04crewvt · Post by **04crewvt** » Mon Jun 15, 2009 1:09 pm

Is it possible you are catching the tire on the inner fender well or flair? What size tires/mods to the suspension have you done? With my setup I get that pop sound if I flex the drivers side tire up to the top of it's travel in the wheel well and the tire catches the flair, it even broke a piece out at one point.

Post by **HenryJ** » Mon Jun 15, 2009 1:21 pm

Lube the t-bar sockets.

F9K9 · Post by **F9K9** » Mon Jun 15, 2009 4:00 pm

HenryJ wrote:Lube the t-bar sockets.

kxracer · Post by **kxracer** » Mon Jun 15, 2009 8:15 pm

Thanks guys, I will do that. I wanted to get that fixed before I cranked the T-bars, I figured it was more serious.

fallvitals · Post by **fallvitals** » Tue Jun 16, 2009 12:15 am

on the topic of lubing the TB..

Searched and I didnt see any thing.. excuse the terminology. The round bar that runs from TB adjustment to the bracket on the drivers side.... where it goes into that block or whatever,,, theres like,, yellow grease all round the opening, but its not liek that on the drivers side. Not sure it was there before the TB crank.

Any ideas? or nothing at all? Ment to take a pciture of exactly what I am talking about, but forgot to.

Post by **HenryJ** » Tue Jun 16, 2009 4:55 am

fallvitals wrote:on the topic of lubing the TB..

Searched and I didnt see any thing.. excuse the terminology. The round bar that runs from TB adjustment to the bracket on the drivers side.... where it goes into that block or whatever,,, theres like,, yellow grease all round the opening, but its not liek that on the drivers side. Not sure it was there before the TB crank.

Any ideas? or nothing at all? Ment to take a pciture of exactly what I am talking about, but forgot to.

What is the question?

fallvitals · Post by **fallvitals** » Tue Jun 16, 2009 11:30 am

HenryJ wrote:
fallvitals wrote:on the topic of lubing the TB..

Searched and I didnt see any thing.. excuse the terminology. The round bar that runs from TB adjustment to the bracket on the drivers side.... where it goes into that block or whatever,,, theres like,, yellow grease all round the opening, but its not liek that on the drivers side. Not sure it was there before the TB crank.

Any ideas? or nothing at all? Ment to take a pciture of exactly what I am talking about, but forgot to.
What is the question?

My question was, is that normal? Just doesnt seem right to have some sort of yellow grease lined around that opening, and not the other side?

Im assuming its normal from your response?

Post by **HenryJ** » Tue Jun 16, 2009 11:32 am

Lube them all.

fallvitals · Post by **fallvitals** » Tue Jun 16, 2009 11:37 am

I just went out and snapped that. Its the torsion bar, going into the control arm.

Forgive my ignorance on this, but where do you lube "them all" at? Only thing I know to lube is the grease fittings up front..?

Post by **HenryJ** » Tue Jun 16, 2009 11:40 am

Yes. Yours are dry. Lube them.

fallvitals · Post by **fallvitals** » Tue Jun 16, 2009 11:46 am

Hm, when I rotated my tires I gave them all a good greasing less then 2K ago. Doing a oil change shortly and lubbing them again.

Replaced two of the zerks with 90o zerks. those had probably never been lubed.. but every thing was greased...

Im not seeing any grease fitting here that would put grease on the back of the control arm where the torsion bar goes into, like I pictured above?

kxracer · Post by **kxracer** » Tue Jun 16, 2009 12:03 pm

fallvitals wrote:Hm, when I rotated my tires I gave them all a good greasing less then 2K ago. Doing a oil change shortly and lubbing them again.

Replaced two of the zerks with 90o zerks. those had probably never been lubed.. but every thing was greased...

Im not seeing any grease fitting here that would put grease on the back of the control arm where the torsion bar goes into, like I pictured above?

I just sprayed white lithium grease down into that opening around the torsion bars (what you had a pic of). I don't think there are any zerks. IDK, I searched google and that is how others were doing it.

04crewvt · Post by **04crewvt** » Tue Jun 16, 2009 12:03 pm

Nope it just gets squeezed into the sockets right where the bars enter the arms

fallvitals · Post by **fallvitals** » Tue Jun 16, 2009 12:10 pm

Ohh, gotcha. Thanks, I was lost there for a second, lol. Sounds like that will be a messy job. How often should that greasing be done? Every oil change?

04crewvt · Post by **04crewvt** » Tue Jun 16, 2009 12:13 pm

when it's dry or the noise comes back. I would simply check at each oil change.

Daveb · Post by **Daveb** » Sat Jul 11, 2009 6:39 am

I have an 01 CC and it does the same thing. It had 65,000 miles on it last year when i got it. I had all four ball joints replaced with Moog joints shortly after, and I only have 75,000 on it now. So I'm pretty sure its not my ball joints. Like Kxracer, my truck only seems to pop when I get on the brakes hard or when I turn sharply. It will almost always pop when backing up with the wheel turned all the way to the right. I crawled under it earlier this week and shot lithium grease into the T-bar sockets with a needle on my grease gun. That didn't seem to help with the popping at all. My mechanic said he couldn't find anything wrong with my suspension, as did my alignment guy. So as of right now, I'm just going to drive it unless it gets worse. I don't know what is causing it, but I think it is related to the T-bars. I would like to get it fixed though.

rick · Post by **rick** » Sat Jul 11, 2009 8:32 am

I had this happen when my upper control arm bushings went bad. Had them replaced at 60,ooo miles and now at 114,ooo the noise is back. I have wear on the outer edge of my L/front tire. So I figured the problem is back again. .

fallvitals · Post by **fallvitals** » Thu Jun 24, 2010 6:06 pm

Well im in the same boat. I spray white lithium grease into my t-bars, I never notice a differance. I have a lot of popping going on. Even when I apply the brakes, it will pop a few times up front before coming to a start, turning the wheel at little/no speed, itll pop a few times. When I was offroading with my buddy this weekend it was so bad at times when flexing that he was making faces like "wtf?"... he was hearing it over my truck, his atv, and helmet... I guess just run it till something falls off, lol.

fallvitals · Post by **fallvitals** » Thu Jun 24, 2010 6:32 pm

In my girlfriends car I noticed her 08 cobalt made similier noises when turning. Which I never noticed before till i listened... But mine is more noticeable.

green02crew · Post by **green02crew** » Thu Jun 24, 2010 8:33 pm

Popping, check the ball joints.

killian96ss · Post by **killian96ss** » Fri Jun 25, 2010 6:04 pm

Another source of popping sounds on the S-series is because the t-bar crossmember is a floating design supported by 2 hangers with rubber mounts. When one t-bar is compressed more than the other the whole crossmember will move to one side and make contact with the frame. If the rubber bushings are worn out or not tightened down enough the crossmember will make a popping sound when it hits the frame. This problem is only made worse when you crank the t-bars up. The full size 4x4's have a fixed t-bar crossmember and don't have this problem.

Steve

S-10CREWCAB.NET

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