Vehicle make/model Chevrolet Lumina
Year = 1996
Mileage = 112,901
Engine size = 3.1 L
tech = JK
question =   Lately, I've been noticing that once I get my Lumina up
above 65 mph, on the highway, theres a really annoying rattle in the
rear.  It sounds almost as if it could be my rear struts/suspension on its
way out?  I've read that it could also be caused by a warped rim, or
issue with tire.  Whats your stand on this.  The rattle/noise gets worse
the faster the car goes.  Makes entire rear of car shake





JK:
A bent rim, or a tire problem will usually give a vibration. See this link....
http://greatautohelp.com/auto_basics/check_tires.html

If it is severe enough, it can cause a rattle. Would definitely check for tire or rim problem.
A loose strut/shock would rattle if there was a problem with a tire/rim. Also check for a
foreign object in the
tire tread, like a nail or something larger.

                                                    
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