Front end rattle ONLY over small bumps - EnclaveForum.net: Buick Enclave Online Community
 
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post #1 of 9 (permalink) Old 04-15-2019, 07:34 AM Thread Starter
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Front end rattle ONLY over small bumps

This is driving me crazy. I had two different dealers check it and they found nothing. I hear a rattling sound from front end but only over small bumps or pot holes. Going over speed bumps or larger dips I hear nothing. Had the sway bar link bushings replaced yet I still hear the noise. Had the wheels aligned and tire balanced too. At highway speed I get a slight vibration in front end but thatís going over 75. Car is 2011 with 65000 miles but I had struts replaced about 25000 miles ago and tires replaced about 20000 miles ago. Guess at 65000 and 8 years old the slight vibration should be expected. As far as the slight rattle itís really annoying. Makes the car sound like a piece of junk! Any ideas? Thanks

2011 Enclave CXL-2 AWD Leather. power sun roof,Nav system, carbon black metallic,Bose stereo
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post #2 of 9 (permalink) Old 04-15-2019, 11:55 AM
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I started to get a metallic thud. I would not call it a rattle.
But inside the cabin I could tell it was metal related.
Was very apparent in slow speed driving. Any little bumps in the road and I could hear it. I dont really recall hearing it on speed bumps. It was the little bumps in the road- that really made it stand out. At speed-- it was probably there- but too much road noise.
I began to replace parts. I was nearing 150,000. Replacement of the parts would have happened regardless.
Sway bar bushing.
Sway band endlinks
Tie Rod Ends

Front control arm bushings.
Lower control arms (with new ball joints).
Noise was still there....
My struts had 49,000 miles.
I emailed the company because while I was doing all the work- I noticed the jounce bumper had come loose on the strut rod.
I received replacements under the lifetime warranty.
I removed a strut..... and I think I found the source of the sound.
Once driven- the sound was gone.

Turns out the rubber mount that isolates the coil from the metallic base, both moved and was worn through.
So it was metal coil on metal base. Allowing the coil to tap. Metallic thud.....

note the rubber moved down.
Also notice this coil was now metal to metal.. so any small movement of the coil--- resulted in metallic thud/tapping.
You can actually see where the coil was tapping.
You may want to raise vehicle and look at the area and see if youre rubber bushing has shifted.






the coils end-- wore right through the rubber.







2010 FWD LT1-Gold Mist Metallic- seats 8
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L 83,000
2010 Traverse 3.6L 148,000
2003 Trailblazer 4.2L 181,500

Last edited by rbarrios; 04-15-2019 at 12:05 PM.
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post #3 of 9 (permalink) Old 04-15-2019, 12:03 PM Thread Starter
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Thanks. If I am able Ill raise it up and take a look or show this post to the dealer so he can check it out. Thanks a lot!!

2011 Enclave CXL-2 AWD Leather. power sun roof,Nav system, carbon black metallic,Bose stereo
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post #4 of 9 (permalink) Old 04-15-2019, 03:24 PM Thread Starter
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To view this can I use hack stands or use a floor Jack one side at a time ? Thanks

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post #5 of 9 (permalink) Old 04-15-2019, 03:40 PM
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just raise one side and look up with a flashlight.
you may need to remove wheel if you need a better view.

You should be able to see if the rubber gasket has slipped out... giving a clue to inspect further...
Im thinking that using a mirror on a telescoping wand may give a better view if needed.

2010 FWD LT1-Gold Mist Metallic- seats 8
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L 83,000
2010 Traverse 3.6L 148,000
2003 Trailblazer 4.2L 181,500
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post #6 of 9 (permalink) Old 04-15-2019, 03:57 PM Thread Starter
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Thanks. You’re are always very helpful. Appreciate it much. It may not be until next week but I’ll let you know what I find. Thanks again.

2011 Enclave CXL-2 AWD Leather. power sun roof,Nav system, carbon black metallic,Bose stereo
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post #7 of 9 (permalink) Old 04-18-2019, 09:06 PM Thread Starter
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Someone sent me a message
Newbie
Join: Feb 2019
Posts: 2

about 1 hour ago
Rattle noise
I just started having the same thing. There are heat plates next to front tires and a few other places. I feel the same way when they come loose it makes the car sound cheap. The mechanic should have spotted this easily!!

I never heard of heat plates. Can anyone confirm this?

2011 Enclave CXL-2 AWD Leather. power sun roof,Nav system, carbon black metallic,Bose stereo
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post #8 of 9 (permalink) Old 04-19-2019, 11:16 AM
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heat plates next to front tires?


no idea what hes referring to.


Wheel well liner?
There are Heat shields found along the exhaust and body?
Those sometimes come loose and rattle.


But I dont recall metal heat shields by the tires.
Though he says heat plates. What heat are the tires being protected from?

2010 FWD LT1-Gold Mist Metallic- seats 8
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L 83,000
2010 Traverse 3.6L 148,000
2003 Trailblazer 4.2L 181,500

Last edited by rbarrios; 04-19-2019 at 11:18 AM.
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post #9 of 9 (permalink) Old 04-19-2019, 11:24 AM Thread Starter
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I agree. I know the exhaust may have heat shields but as far as tires I do not know. I do thank the person for the input though. Guess Ill check anything that may be loose but I would have expected the techs to do that if it was brought in for inspection. Then again never assume. I have had my tires rotated several times at same place and they never reset the TPS. From now on I always ask before leaving if it was done.

2011 Enclave CXL-2 AWD Leather. power sun roof,Nav system, carbon black metallic,Bose stereo
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