A pop or sharp thunk from the rear suspension is almost always a worn bushing, end link, or shock mount letting metal contact metal. The list is short and most are cheap to fix. Common culprits: rear sway bar end links, broken coil springs, worn upper shock mounts, and dead trailing arm bushings.
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A failed rear end link pops or clunks over bumps. Cheap, easy fix. Parts: $20 - $60. Labor: $50 - $120. Difficulty: Easy DIY. Severity: Low.
Get a Free AI Diagnosis →A rear shock mount with cracked rubber pops as the suspension cycles. Inspect from the trunk or wheel well. Parts: $35 - $120 per side. Labor: $100 - $300. Difficulty: Medium DIY / Shop. Severity: Medium.
Get a Free AI Diagnosis →A snapped tip on the coil spring pops when the suspension cycles past the break point. Visible if you peek into the spring perch. Parts: $80 - $250. Labor: $150 - $400. Difficulty: Shop. Severity: Medium.
Get a Free AI Diagnosis →A torn rear trailing arm bushing pops as the arm cycles over bumps. Often cracked rubber visible. Parts: $30 - $200. Labor: $150 - $400. Difficulty: Medium DIY / Shop. Severity: Medium.
Get a Free AI Diagnosis →Yes - check the trunk. A loose jack, spare, or tool kit can pop and bounce in the trunk and sound like suspension. Free fix. Parts: $0. Labor: $0. Difficulty: Easy DIY. Severity: Low.
Get a Free AI Diagnosis →The bushings that hold the rear sway bar to the chassis dry out and let the bar shift sideways, popping over bumps. Parts: $10 - $40. Labor: $30 - $120. Difficulty: Easy DIY. Severity: Low.
Get a Free AI Diagnosis →Use this quick-reference table to narrow down the cause based on exactly when you hear the noise.
| When You Hear It | Most Likely Cause |
|---|---|
| Pop only over sharp bumps | End link or shock mount |
| Pop only when one side hits a bump | Broken spring on that side |
| Pop + trunk has loose items | Loose cargo in trunk |
| Pop + clunk when accelerating from a stop | Trailing arm bushing |
| Pop only on rough roads, never on smooth | Sway bar bushings |
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Usually no, but a broken spring or torn bushing can affect alignment and tire wear. Get it inspected within a few weeks.
Empty everything from the trunk, including the spare and jack. Drive over a bumpy road. If the pop is gone, you found it.
A blown strut bounces; a worn strut mount pops. Most rear pops are mount or end link, not the strut itself.
Typically $80 - $200 for both, parts and labor.
In many states yes, and it is a real safety issue. Replace it.
Cold rubber is stiffer, so loose bushings make more noise. Once warm and flexed, they often quiet down.