Clunk-clunk at Every Bump Revisited - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Maintenance DIY/How-to's for maintenance of your car.

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post #1 of 14 (permalink) Old 10-03-2016, 08:17 AM Thread Starter
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Clunk-clunk at Every Bump Revisited

Coby7 did an excelent post on sway bar bushings. I dont think that is my problem.
Here is whai i just completed on my 08 and need suggestions on tie rods

What a difference good shocks and struts make.
As a quick recap i just installed Delco FE5 shocks & Struts orig LS springs & sway bars & MEVOTECH CMS50173 &50174 LCAs with cheep 250mm links.
One of the orig. struts & one shock were blown, shock oil running down the outside of the cylinder.
Just put ~150 miles on my BC (08 LS). Running stock steel wheels with 195/65-15 Toyo [email protected] 40psi


Much much better. What a pleasent difference.

I have noticed just a bit of wondering on the road and at low speed even stopped I hear and fee a little pop from the RF. I dont think it is the fuse to the muffler bearing.


This AM I had the better 3/4 turn the wheel back and forth
~ 45 to 60 degrees (engine running) one could hear and feel the bump/snap pop. Had the wheels turned all the way R then back just enough to be off the limits and repeated the back and forth on the steering wheel.
I think I felt the movement in the tie rod end. @ 113k miles, it does not suprise me.

My old school thoughts without thinking hard about it is to replace
All of the tie rods and tie rod ends and then set the toe-in @ ~$80-$100 + boots & clamps. VS a rebuilt rack @~$180

Suggestions or rack rebuild guide instructions?

Last edited by Coby7; 10-04-2016 at 02:22 AM.
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post #2 of 14 (permalink) Old 10-04-2016, 02:26 AM
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Make sure it isn't your intermediate steering shaft, sounds like your lower U-joint is shot.

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post #3 of 14 (permalink) Old 10-04-2016, 05:59 AM Thread Starter
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Ok, thanks Coby7.
I see. I've Read several posts and the TSB for updating to 10394225.

Whats your thought on DORMAN 425109 Steering Shaft from the RockAuto? It says Alternate/OEM Part Number(s): 15799676, 15800140
Gmpartsdirect calls for CHEVROLET COBALT (15800140).

I will check it out and see if a little lubrication on the joints can verify the u-jpints poping.
Very good. Again Thanks Coby7

How would you test the shaft?? 2 people?
I'll try tonight ith help both wheels on the ground and in the air.
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post #4 of 14 (permalink) Old 10-04-2016, 06:06 AM
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Pretty sure the Dorman one is the one coby used to replace his
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post #5 of 14 (permalink) Old 10-04-2016, 06:14 AM Thread Starter
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Far out!
Any way you know of to prove it other than by replacing?

Last edited by 1966tbird; 10-04-2016 at 06:16 AM. Reason: Auto misSpelling checker was working well mispelling for me
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post #6 of 14 (permalink) Old 10-04-2016, 07:20 AM
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Two people, wheels on the ground, one guy turns the wheel side-to-side maybe +/- 10. If it's really bad you'll see just by looking at the joint, if it's starting to go you can just grab the U-joint and you will feel the play. By what you're saying though you should just be able to see it. Oh! yes the Dorman ''B'' version is the one to get, they don't make the old style any more so you should receive the newer style unless it's old stock. If you compare them the U-joint and shaft is bigger on the new style.
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Last edited by Coby7; 10-04-2016 at 07:23 AM.
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post #7 of 14 (permalink) Old 10-04-2016, 07:27 AM
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Does the new style get rid of the need to make a boot over the u joint and fill it with grease?
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post #8 of 14 (permalink) Old 10-04-2016, 07:32 AM
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Don't know, it's still wide open to mother nature and road salt, I din't take a chance.

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post #9 of 14 (permalink) Old 10-04-2016, 07:58 AM Thread Starter
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Great.
Didnt know to look at inter shaft since i think the sound was on right side.
I Just put my hand in onto rod end. This i see, can still couple over from shaft.
I'll look harder.
And one more thanks to Coby7
Do you have a good source for that u-jount boot?
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post #10 of 14 (permalink) Old 10-04-2016, 08:39 AM
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hmmmm. will the U-joint cause some terrible grinding noise when turning the wheel? or will that be something else?

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