Air suspension always inflates to the max ride height

Tiny
RUNNER13
  • MEMBER
  • 2002 GMC ENVOY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
Every time I turn on my vehicle the rear air suspension always inflates to the max ride height. I have deflated when the vehicle is running, but if I shut of the vehicle and turn it on again. The air suspension will re inflate to the max ride height.
Monday, April 8th, 2019 AT 3:54 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 34,100 POSTS
Start by checking the height sensor by the rear axle. There will be a linkage connected to the axle housing. A good suspect is that linkage popped apart on one end and the sensor is telling the computer the rear needs to be raised a little. Of course, no matter how high the rear goes, the sensor will not move.

If that linkage is okay, the next suspect would be the sensor is defective.
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Monday, April 8th, 2019 AT 11:48 PM

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