Thumping Along in a 2001 Acura MDX

Short Description
Bill secured his son James, and his dog Skippy, into their 2001 Acura® MDX for a weekend fishing trip. As they drew nearer to “Camp Chasing Squirrel” on an old fire road, Bill noticed a “thump” noise from his MDX. After returning with lots of great stories and lots of wet paw prints, he called me about the thumping.

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Content
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There are three distinct noises that may come from the front suspension:
1. A sharp metallic pop, usually heard when accelerating or braking
2. A clunk, usually heard when driving through dips in the road.
3. A thump, usually heard when driving over rough roads.
Each of the three noises has a different probable cause. Symptom 1 is caused by insufficient clamping force of the lower arm to the subframe. Symptom 2 is caused by the front damper spring coil contacting the end of the spring. Symptom 3 is caused by faulty front dampers.
Based on the diagnosis of the vehicle’s specific symptom, torque the lower arm mounting bolts, install spring silencer tube sections, or replace one or both front dampers as needed.
Completion of repair Procedure B will require a spring Silencer Tube, P/N 52442-S0X-A01 while Procedure C will require 2 new front dampers; P/N 51606-S3V-A04 (Left) and P/N 51605-S3V-A04 (Right).
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