Hi and thanks for using 2CarPros.com.
Based on your description, it could be a few things. However, is a technical service bulletin (TSB) regarding front end noise. A TSB is a notice to dealers indicating an issue that has been brought to the manufacturer's attention. It is not a recall, but rather a guide to help diagnose issues which are more likely to be the cause. I need you to read through it and determine if it mirrors your symptoms. Additionally, the TSB shows how to inspect the component and try to remedy it.
Pictures one and two correlate with the TSB.
Subject: Front Suspension or Front Strut Noise Models: 2008-2014 Chevrolet Captiva Sport 2010-2014 Chevrolet Equinox 2010-2014 GMC Terrain 2008-2010 Saturn VUE
This bulletin has been revised to add the 2012-2014 model years and update the Labor Operation to the Global Labor Code (GLC). Please discard Corporate Bulletin Number 10-03-08-003A.
Condition
Some customers may comment on a popping, creak, rattle, squawk, itch or clunk type noise coming from the front of the vehicle. This noise will most likely be heard during small to medium suspension travel. The noise may occur with the vehicle traveling straight and/or during turns.
Cause
The cause of this condition may be due to the inside diameter of the front strut jounce bumper rubbing against the piston rod of the strut, creating a slip-stick condition.
Correction
Important:
DO NOT replace any front suspension components (strut, strut top mount bearing, etc) without first performing this bulletin.
1.Verify that the noise is from the upper strut mount area. The concern may be on both sides of the vehicle.
2.Raise and support the vehicle on a frame lift-type hoist.
3.Pull the dust shield/jounce bumper assembly out of the strut top mount cup.
4.Slide the dust shield/jounce bumper assembly down to expose the top portion of the strut shaft.
5.Apply grease, GM P/N 12345579 (in Canada, 10953481), around the circumference of the strut shaft that is exposed.
6.Unseat the bottom of the dust shield from the strut.
7.Slide the dust shield/jounce bumper assembly up to expose the bottom portion of the strut shaft.
8.Apply the grease around the circumference of the strut shaft that is exposed.
9.Slide the dust shield/jounce bumper assembly down and reattach the bottom to the strut.
10.Push the top of the dust shield/jounce bumper assembly up into the top mount cup as far as possible by hand. The assembly will fully seat once the vehicle is on the ground and the suspension is allowed to compress.
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Try that. You may need struts or even have a cracked coil spring among other possible issues. However, this is a simple test and correction. See if it helps.
Also, here is a link you may find helpful.
https://www.2carpros.com/articles/popping-noise
Last, to replace both struts calls for 1.8 hours labor. The parts should cost around 350.00. The vehicle should be aligned after the repair so figure aprox 100.00. That brings the parts and alignment to aprox 450. So, if the shop charges aprox 700 dollars an hour in labor, the price is right. However, I truly hope that isn't the case. If you have the struts replaced, get another price quote. I can't imagine it being over 500 for the entire job. However, I don't know where you live.
I hope this helps. Let me know if you have other questions.
Take care,
Joe
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Tuesday, October 30th, 2018 AT 6:25 PM