Question about 1990 Buick Riviera
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Posted on Jan 02, 2017
tes, by adjusting the rear height sensor, which is located at rear of car toward the middle,heres a picture of it, i circled the nut you loosen to adjust,you want to make arm longer to make the rea of car go up higher make sure to tighten nut when testing, hope this helps you. good luck.
Posted on Feb 19, 2010
it has a automatic sensor on the bottom of this car that self adjust the shocks. The most inexpensive way to repair this is to get a manual fill kit and eliminate the auto self adjusting shocks
Posted on May 18, 2010
yes vacuum lines can cause this when system looses vacuum it defaults to defrost there is a vacuum line going thru firewall usually near blower motor it has direct manifold vacuum on it check it follow it back to source make sure not cracked split or fallen off
Posted on Jul 25, 2010
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