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 FAQ: Automatic Leveling Control (ALC) Concerns

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NO 4 EVR
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PostSubject: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 5:49 am

Is it worth the money to fix this. Mine apparently does not work and I want to know what could be wrong and how much to fix. Thanks!
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jax95riv
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 7:10 am

What is it doing? Anything? Nothing?
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Mr.Riviera
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 9:21 am

check the fuse? (under the seat)
is the pump running at all?

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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 3:19 pm

Well I have never heard or felt it work. I started the car one day and me and my buddy sat on the rear bumper for a few minutes with no adjustment. Its doing nothing.

I do hear a pump type compressor kick in sometimes after I turn the car off. But it is the same compressor that I hear on my 92 bonnie SSE, but I don't know if that has ride leveling or if that is the pump in question.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 3:21 pm

Mr.Riviera wrote:
check the fuse? (under the seat)
is the pump running at all?

The one under the rear seat?
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 4:28 pm

pop the reat seat bottom off. you will see to black boxes on the drivers side. remove the the one closer to the battery and check for the fuse.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 8:28 pm

I'll check, sad part is I think I checked all those fuses and they are all good frown I'll check again.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 8:32 pm

It seems like something is working if the pump will sometimes kick on when you turn the car off. Mine runs frequently because I have a leak in one of my shocks.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 06, 2007 8:35 pm

you should be able to turn the key to acc and the pump will cut on after a few min. listen for a buzzing noise from the rear. did you run an ohm or multimeter to the fuses or just pull and look at them? i think it is labeled ELC (electronic level control).

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1996 with 244k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Wed Mar 07, 2007 1:30 pm

I have a little tool that acts as a dumbed down multimeter. It just tells me if electricity is running thru, not how much tho. But I dislike taking the back seat off, I hate putting the seatbelts back thru the slits.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Wed Mar 07, 2007 9:24 pm

The pump should run for a few seconds a minute or so after every startup. Find the pump and put a test light on the terminals.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Thu Mar 08, 2007 11:02 pm

NO 4 EVR wrote:
I have a little tool that acts as a dumbed down multimeter. It just tells me if electricity is running thru, not how much tho. But I dislike taking the back seat off, I hate putting the seatbelts back thru the slits.

I don't think it is that hard to put the seatbelts back thru the slits. As you put the seat back in, just take the belts and slide them in and then snap the seat down.

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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Fri Mar 09, 2007 12:09 am

I know I just like to avoid it
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Mar 13, 2007 5:37 pm

Well fuses checked out, I found a couple fuses and one relay associated with ELC. I think the relay is good also as I switched it with the trunk release relay and that all works. And I hear the pump but I don't think it is working, I'll check again.
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PostSubject: Device in Front Of Fuel tank Below Car?   Mon Apr 16, 2007 2:02 pm

95' buick riviera.

what is the name of the device thats below the car , right in front of the fuel tank?


it just started making a vibration noise today... when the car is off! i unplugged the battery unitl i can figure out what is wrong
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Mon Apr 16, 2007 2:28 pm

That should be the air compressor for your rear shocks. It sounds like you may be in for a new set of shocks - when were they replaced last?
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jax95riv
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Mon Apr 16, 2007 5:43 pm

Does it stay running, or does it run for a few and shut off?
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Mon Apr 16, 2007 6:52 pm

jax95riv wrote:
Does it stay running, or does it run for a few and shut off?

it runs on and off . i was in the autozone parking lot just listening without the car on. i thought my fuel was boiling for a minute
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Mon Apr 16, 2007 7:56 pm

You probably have a slow leak in one of your air shocks and the compressor kicks on to keep the vehicle at the set height. Mines doing that too. As soon as my springs come in I'm going to change them. My compressor will run whether the car is running or not and the leak has caused my battery to run down over time.
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Mon Apr 16, 2007 8:11 pm

yea , your problem is exactly like mine . so considering that this is the problem , replacing the 2 rear air shocks will fix the issue.. how do they get leaks in them?
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Mon Apr 16, 2007 10:17 pm

They're probably original to the car and it's just time to replace them. Our rides are 12 years old now.
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bayarearivi
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Apr 17, 2007 3:13 pm

i see , im going to take it somewhere this weekend and get the new ones put on , but i like to buy my parts rather then pay the shop to buy them . any suggestion on replacement shocks?
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Tue Apr 17, 2007 7:40 pm

Check ebay or any parts store. Not many options to choose from.
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PostSubject: Electronic Leveling Control (ELC) Problem   Wed Jul 25, 2007 2:08 pm

so our cars have ELC right? Where is it?

Im pretty sure my crapped about a couple years ago. Anyone know where to get a replacement? And has anyone done a replacement themselves?
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PostSubject: Re: FAQ: Automatic Leveling Control (ALC) Concerns   Wed Jul 25, 2007 2:12 pm

I think you'll spot it in the left rear underbody. I'd suggest Ed Morad for a replacement. GM repl is pricey, don't know of an aftermarket. This was discussed on the ROA forum recently, no one had offered up any alternatives.
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