Popping sound, 2002 pontiac trans am 5.7l ws.9
10-04-2015, 02:09 AM
#1
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Popping sound, 2002 pontiac trans am 5.7l ws.9 
EVERY TIME I APPLY MY BRAKES, A LOUD ""POP"" SOUND OCCURS....SOUNDS LIKE IT IS COMING FROM THE BACK/MIDDLE OF THE CAR, BUT I CAN'T REALLY TELL BECAUSE I AM ALWAYS THE ONE DRIVEN.****PLEASE HELP ME FIGURE OUT THE PROBLEM****
10-04-2015, 07:47 AM
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No, it does not!!!
Only happens when i press the brakes,, for instance...i'm reversing and i push my brakes 2 stop and then right before i get to a complete stop it will make that ""pop"" sound.....or i'm coming up 2 a red light and it's time 4 me to push the brakes....once again right before i get to a complete stop it does it!!!!
If i brake like really realllllllyyyy softly "it will not do it".
Just wanna figure out the problem so i can get it fixed
Only happens when i press the brakes,, for instance...i'm reversing and i push my brakes 2 stop and then right before i get to a complete stop it will make that ""pop"" sound.....or i'm coming up 2 a red light and it's time 4 me to push the brakes....once again right before i get to a complete stop it does it!!!!
If i brake like really realllllllyyyy softly "it will not do it".
Just wanna figure out the problem so i can get it fixed
10-04-2015, 09:46 PM
#7
PITA ----> Pain In The ***..... Yea it's bad. I suggest getting under the back of your car and look for a loose suspension component. Check lower control arms, torque arm bolts, shocks, anything that moves.
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10-05-2015, 09:17 AM
#8
I'm going to move this to the Suspension and Brakes section, since the issue is definitely there and not specific to the brand of the car.
This could also be a loose caliper or missing caliper bolt. I would check that ASAP and would definitely not drive the vehicle until all the brake and suspension hardware and attaching points are closely inspected.
This could also be a loose caliper or missing caliper bolt. I would check that ASAP and would definitely not drive the vehicle until all the brake and suspension hardware and attaching points are closely inspected.
10-05-2015, 11:09 AM
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Does it only happen when applying the brakes, or does it also happen when accelerating? In addition to checking the calipers, have you checked the torque arm bushing? May sound dumb, but have you checked the spare tire/jack to make sure everything is secure?
10-12-2015, 01:33 PM
#10
Check these in order:
1. Front and rear caliper bolts, break them loose then re-torque to factory spec. IIRC these are 74#. Light or medium duty Loctite helps keep them in place without needing a torch to service. Also verify the pads and sliders are good condition while you have it open.
2. Torque arm bushings, joints, bolts, brackets, etc are all tight and nothing has fallen out or broke.
3. Rear struts and spring perch, visually check for damage.
4. Panhard bar, check the bolts are tight and nothing is broken or bent.
This list is assuming you have stock-ish parts under there and not a lot of adjustable suspension. Adjustable parts need more time and focus. If you have several adjustable suspension parts, find a reputable shop that has experience with adjustable suspension fbody platform.
1. Front and rear caliper bolts, break them loose then re-torque to factory spec. IIRC these are 74#. Light or medium duty Loctite helps keep them in place without needing a torch to service. Also verify the pads and sliders are good condition while you have it open.
2. Torque arm bushings, joints, bolts, brackets, etc are all tight and nothing has fallen out or broke.
3. Rear struts and spring perch, visually check for damage.
4. Panhard bar, check the bolts are tight and nothing is broken or bent.
This list is assuming you have stock-ish parts under there and not a lot of adjustable suspension. Adjustable parts need more time and focus. If you have several adjustable suspension parts, find a reputable shop that has experience with adjustable suspension fbody platform.