Date: Wed, 29 Mar 2000 14:57:42 -0800 From: Bob C. <dregnarNOdrSPAMnopsamsouth.net.invalid> Subject: Re: Clunking
The reverse clunk is common in the 900 prior to '88 due to the god awful front brake design. The caliper guides wear and as you back up and apply the brake the caliper shifts about 1/4" causing a nasty sounding low frequency "clunk". It happens only once per direction change, so if you continue to back up and brake the caliper is already shifted and wont clunk again. btw it is not a dangerous condition but it sounds like it. but back to you paul (and it is all about you isn't it? :-) ) I doubt that the clunk you are hearing is the caliper clunking. it sounds very likely to me that the CV joint(s) are worn. check the CV boots .. are they ripped? try making very tight circles in a parking lot ... left and right ... do you hear clicking? try a spirited start with the wheels slightly turned (left and right) do you feel pulsing? does the wheel ever pull rhymicly while traveling in a straight line? any of these mean worn CV joints. THe most common to wear out are the outter set. You can replace the joints seperately and save a few bucks but I recomend that you replace the axel as a unit. It saves a lot of time and grief. But dont get a rebuilt axle ... they are all crap (how do I know this? lets just say I have learned it 3 times over). So buy a new axle and enjoy a saturday under your precious saab. ps of all the symptoms above ... the rythmic pulling means immenent failure. * Sent from RemarQ http://www.remarq.com The Internet's Discussion Network * The fastest and easiest way to search and participate in Usenet - Free!