Popping under left front end - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-23-2009, 12:55 PM   #1
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Question Popping under left front end

Hey, anyone have suggestions to the cause of a pop sound under the left front end. I pops whenyou start off especially turning left. The ride is not bothered at all. Smooth without vibration. I've had it looked at in a garage without solving the problem. Would the left ball joint ake that pop, and how do you check it?
1997 Bonneville SSE
Thanks for any help,
Robert
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Old 04-23-2009, 02:33 PM   #2
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Have a friend turn the wheel back and forth while you watch all the joints move. You should see something jump a little if it binds up and pops. Also try jacking up the front end and try moving the wheel by hand. Turn it, pull top and bottom, left and right, in and out. Look for any play and trace it back to what'* causing it.
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Old 04-23-2009, 03:01 PM   #3
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Thanks Dan, I'll try it. I appreciate your help
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Old 04-28-2009, 07:46 PM   #4
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Dollars to donuts you have a broken stabilizer link.
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Old 04-28-2009, 07:55 PM   #5
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My car makes the same noise; unfortunately, I have a few suspension problems

Bad motor mounts
"severely" bad ball joint
Bad front tie rod [Just had the left replaced ]
I figure any of those could cause some type of clicking noise..

Not to mention the subframe is welded back on; I figure that'* not what'* causing your problem but it might be causing mine. Haha.

Anyway, I suspect the ball joint, since I can kind of feel the click when I turn. Also, if I floor it uphill, I get a little kind of grinding sound from the wheel. My Dad'* cutlass had a similar sound all the time when his ball joints went bad.
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Old 04-28-2009, 10:44 PM   #6
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Cool Thanks Guys

I had the left front ball joint replaced, and it still does it. Still looking and checking.Keep any suggestions coming though. Thanks again!
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Old 04-28-2009, 10:51 PM   #7
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This is a long shot....are your lug nuts tight?
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Old 04-28-2009, 10:51 PM   #8
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Check all six bolts for the engine cradle. There would have to be more than one of those loose for it to be shifting. Heads are 18mm if I remember correctly.

Also check for dry rot with the rubber part of the cradle mounts.
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Old 04-29-2009, 04:12 PM   #9
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Yeah, All the lug nuts are tight.
Thanks
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Old 04-29-2009, 04:12 PM   #10
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Thanks, will check it out.
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