2004 TrailBlazer knocking noise - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Brakes, Suspension, Wheels and Tires > OEM Issues

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Old 02-13-2018, 08:12 AM
pulverj pulverj is offline
Junior Member
2004 Chevy TrailBlazer LS
Dark Green Metallic 6.0L LS2 V8 4X4
Join Date: Feb 2018
Location: East Chatham, NY
Posts: 1
2004 TrailBlazer knocking noise

I have a 2004 TrailBlazer that makes a knocking type noise that seems to becoming from the right rear of the car. It happens intermittently and in rapid succession like 5,6, or 7 knocks very fast. It could do this 20 times in a one hour drive and then not do it again for another day. The repair shop replaced rear shocks, brake pads, rotors, stabilizer links. They tell me the universal joints look ok. None of these things have solved the problem. Has anyone else experienced something like this. Thanks.
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Old 05-06-2018, 04:32 PM
bwolf53 bwolf53 is offline
Junior Member
2004 Chevy TrailBlazer LT
Summit White 4.2L I6 2WD
Join Date: May 2012
Location: Simi Valley<CA
Posts: 1

2004 TB had similar issue, mine turned out to be loose spare. Check by trying to move it. If it moves tighten lift cable
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