: Back end sitting low, level ride out of tune?



MudAnt
08-21-09, 12:13 PM
The back end of my '86 is sitting about an inch too low. At first I thought the level ride system was leaking, but the light never comes on while driving, only for a moment when starting the car. When there is weight on the back end, the level ride pumps it back up, but it still sits about an inch too low.
Is there a way to set the 'level' position?

Also I'm going to post some pictures of it after I wax it :bouncy:

Cadillac Giovanni
08-21-09, 01:31 PM
There's a sensor with a leveling arm attached to the chassis, located above the rear end. I can't recall if it's adjustable, though. Best to take a look there, make sure the arm isn't bent, or the sensor isn't askew or something.

MT-ED
08-21-09, 08:33 PM
Another thing to check is the actual hydraulic part of the rear shocks. Unless they're good and holding oil, there's nothing for the air section to work against. Mine are shot and the back-end is sitting low at present despite the air working ok.

I'm planning to get new shocks all round next week.

Martin.

brougham
08-24-09, 07:22 PM
If the back is low the springs are no good. But since you say the air suspension actually works and raises it if you put a load in it sounds like either its as high as its supposed to be or someone made it low porposely.

MudAnt
08-25-09, 03:24 AM
Here's a picture from the side, maybe it is at the correct height?

http://marcdegrandpre.com/images/86%20FWB/P1030842s.jpg

jayoldschool
08-25-09, 12:19 PM
That looks pretty good to me. Usually when they are low, the fender lip is down covering the top of the hubcap...

sven914
08-25-09, 02:23 PM
Thats right where mine sits.

http://carphotos.cardomain.com/ride_images/3/2503/2881/31256440077_large.jpg

This is what it looked like when I blew the suspension

http://carphotos.cardomain.com/ride_images/3/2503/2881/31256440015_large.jpg

Josh in a lac Black
12-21-11, 10:44 PM
Thats right where mine sits.

http://carphotos.cardomain.com/ride_images/3/2503/2881/31256440077_large.jpg

This is what it looked like when I blew the suspension

http://carphotos.cardomain.com/ride_images/3/2503/2881/31256440015_large.jpg



my 89 d elegance sits with one side lower than the other , the drivers side seems to sit really high and the passengers only slightly higher than when it is deflated. though sometimes both ride at equal height , could that have to do with the cold screwing up the leveling system or will i have to change my shocks, doesnt seem to be a leak though just not filling up as much it keeps its awkward level.

carnut
12-22-11, 02:13 AM
My 84 sedan wheel opening sits at the top edge of the whitewall. Next time you are under the rear of the car, locate the arm from the level ride sensor that attaches to the driver side? lower control arm. Its a flat sheet metal arm with a bolt passing thru it. loosen that bolt and slide the plastic arm on the height sensor up in relation to the sheet metal arm, retighten nut. That will fool the height sensor to add more air to the shocks, raising the car about a 1/2 inch, trunk unloaded. My car with the trunk unloaded and a full tank of gas sits about an inch higher in the back vs the front. Would have been better to see a side shot of the car, but it looks very close to normal.

sven914
12-22-11, 02:29 AM
my 89 d elegance sits with one side lower than the other , the drivers side seems to sit really high and the passengers only slightly higher than when it is deflated. though sometimes both ride at equal height , could that have to do with the cold screwing up the leveling system or will i have to change my shocks, doesnt seem to be a leak though just not filling up as much it keeps its awkward level.

The seal in the passenger side shock could have slow leak. I would recommend replacing both.