Popping noise...

[autumn walker]

Does it seem like a suspension noise?

my guess would be yes - it appears to be when the driver's side torsion bar unloads or the frame has some torque applied on it.

If I am cornering aggressively it'll pop - moderate rate of speed and on the throttle. I can feel it below my feet, feels like a good thump. I'm guessing crossmember or torsion bar.

 

[06 H3]

If we feel the same thing, which it very well may be, I assume its a torsion bar. I had this noise before and after I put in the rancho lift which provides a new crossmember. If that's the case should we be worried? Does this mean the t-bar is bad and worn out?

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[LagunaH1]

The issue I had on my '08 Alpha was at the far end of the torsion bar. The indexing key or the cross member itself needed to be tightened down if I recall correctly. Once Tustin Hummer took care of that, the noise went away.

 

[06 H3]

Is this the culprit??? I know nugget had this issue before and got some new replaceable bushings for it? I can go my own route and find someone to make em but he said PhilD may have a few extras. I emailed him and heard nothing yet

This bushing is shot! The other side is still good...

 

[Steve #1]

It sounds a lot like the transfer case. On mine I could replicate it on flat ground in 4Low by blipping the throttle. It would make the pop or click when the drive line loaded and unloaded. I belive it was a broken tooth on one of the gears.

You can hear it at the end of this video.

[video=youtube_share;IR4RO2X6D-0]http://youtu.be/IR4RO2X6D-0[/video]

 

[4speedfunk]

Front driveshaft. Rancho's eat em in a very short time span. Pull it out and check the CV joint on the rear end of it...takes 15 minutes...costs nuthin.

 

[06 H3]

This was happening pre lift too

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[alrock]

Chris, I think you found your problem. That's the "engine brace" (I think that's what they call it). It's about a $60 part. You have to remove the halfshaft to replace it and you might as well replace the halfshaft seal when you're in there.

Preferred Chassis Fab will be able to rebuild those in the future but there are no cores available. Maybe you can locate a core (Zach), send it to Preferred, he can rebuild it and send it back.

 

[06 H3]

Chris, I think you found your problem. That's the "engine brace" (I think that's what they call it). It's about a $60 part. You have to remove the halfshaft to replace it and you might as well replace the halfshaft seal when you're in there.

Preferred Chassis Fab will be able to rebuild those in the future but there are no cores available. Maybe you can locate a core (Zach), send it to Preferred, he can rebuild it and send it back.

PM sent. Luckily I have one sitting in storage!

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[Bigunit]

06 H3, I'll send you a pm with the info. on where to send the engine brace.

 

[08H3]

Did you ever get this solved? FWIW, mine started popping similar to yours, however mine was much louder and took what seems like more of a load on the drivetrain than your video. My issue ended up being a stretched chain jumping a tooth on the sprocket.