Rear end a little low! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-06-2005, 12:07 AM   #1
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Default Rear end a little low!

The rear end on my car has seemed low lately, I just recently began greatly noticing because I put on mud guards and they scrape constantly. I am thinking it'* because when I put on new suspension I was told I needed shocks in the rear...so I got Gabriel shocks. I put Gabriel struts on the front and it seems fine. The back though with the shocks seems a little harsh and it sags a lot. Should I have struts on the back? Or could it be the springs are going bad? I do have some stuff in the trunk, but nothing that should make it sag as much as it is.
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Old 02-06-2005, 12:46 AM   #2
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i have the saggin problem 2 always wondered what the fix for that would be?
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Old 02-06-2005, 12:46 AM   #3
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I dont think that shocks would work back there, only struts. springs dont go bad....
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Old 02-06-2005, 12:47 AM   #4
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Quote:
Originally Posted by Kennginn
i have the saggin problem 2 always wondered what the fix for that would be?
Kenn adjust your ELC
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Old 02-06-2005, 12:48 AM   #5
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Quote:
Originally Posted by 1993 SLE
Quote:
Originally Posted by Kennginn
i have the saggin problem 2 always wondered what the fix for that would be?
Kenn adjust your ELC
how would i do that i did a search and came back with electronics
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Old 02-06-2005, 12:58 AM   #6
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ask steve....I gave him instructions to adjust his
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Old 02-06-2005, 01:02 AM   #7
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i feel like being nice

Height sensor operational check

turn ignition Off then on to reset the sensor timer circuts
disconnect the sensor arm
check that the wiring is securely connected to the sensor, and the harness ground wire is connected
Move the actuating arm up, there should be a 7-10 sec delay before the compressor starts and the struts start to inflate. As soon as the struts fill stop the compressor by moving the arm down
Move the actuating arm down below a postion where the compressor stopped, there should be a 7-10 sec delay before the the struts start to deflate and the vehicle lowers
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Old 02-06-2005, 01:03 AM   #8
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Height sensor adjustment

park vehicle on level floor
check the following
tire inflation pressures
fuel level in tank, tnak should be near full
no load should be in the vehicle
place front seats in rear position
turn ignition to ON to activete the system
bounce the rear of the vehicle three times to normalize the suspension

loosen the lock blot that clamps the metal actuating arm to the plastic actuatuing arm. To raise the height, move the plastic arm upward, to lower the height move it down ward.
tighten the lock bolt
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Old 02-06-2005, 01:59 AM   #9
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Guys, ELC adjustment is in techinfo. But it'* not going to help a LeSabre, and springs CAN go bad. Really, adding air shocks/struts to the rear and manually filling them coould be a good option. Jr's3800 did this to his 95SE and loves it. They're actually gas struts with air assist. Instead of hooking them up to ELC (which you don't have) you can do a manual fill with them.

PM Don about how he rigged his, and:

http://www.williamwren.com/struts/elc.html
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Old 02-06-2005, 09:48 AM   #10
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You should not use air struts to compensate for bad springs, tho. This can cause erratic handling and poor ride. These cars are known for the rear springs getting soft in their old age. The springs are cheap and relatively easy to install. If the car is sagging when it is empty, it is because of the springs. The ELC is only supposed to help when there is people and cargo in there.

Jay
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