1998 cadillac seville sts air ride prob

1979 Cadillac Coupe 425 engine running; flywheel knocking

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Sep 30, 2011 - Uploaded by Edgar H
1979 Cadillac Coupe 425 engine running; flywheel knocking ...Change Transmission Fluid pan removal Cadillac Seville part1 - Duration: .

Exclamation Re: Found a 94 STS for $800, needs flywheel ...

www.cadillacforums.com/.../cadillac-seville-cadillac.../65815-found-94-s...

Feb 16, 2006 - 15 posts - ‎9 authors
Cadillac Seville / Cadillac Eldorado Forum Discussion, Found a 94 STS for $800, needs .... If it is somehow just the flywheel, your repair cost would be the labor involved in dropping ... Automobile(s): 1999 STS - diamond white. Re: flywheel 99 sts
14 posts
Apr 7, 2013
Re: need to replace flywheel
3 posts
Dec 3, 2011
Re: Location of transaxle to engine bolts on 1998 ...
15 posts
Nov 13, 2011
Re: How to lock flywheel without $150 tool?
7 posts
May 21, 2009
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Here's a link on your brakes. ABS Light Due to ABS Control Module Failure Cadillac Seville STS Common...

Check with the auto parts store to see if they both have the same part no's. It's quite possible they are the same.

I am sorry but we have no wiring diagrams.

if it was done at a GM dealer (reprogramed) it should be ready to install. if not it may not operate.

Hello, To get this light to go out and stay out you are going to have codes read by a scanner, when you get the code you will have to diagnose the system and repair /replace the component that is causing the problem. hope this will help you.

When the problem is a vacuum leak you also have troubles at idle.
The vacuum can be tested using an hand tool gauge like this.
Vacuum/Fuel Pump Tester Kit
Once you find the leak, replace the leaking part.
Often it is easy to find the leak at a glance, as it is hissing or you notice the air out from the leak. Other techniques are pumping smoke inside vacuum or spreading soapy water on vacuum lines.
check also the EGR valve.
If you need the vacuum system diagram purchase a repair manual like this one : 2000 Cadillac SeVille STS Repair Manual on CDROM .
Here also a free tutorial on vacuum problems.
Regards.

check fuses

that system has a pump, you should hear it run when you start the car. it also has a bleed valve. i have seen the valve get stuck before. i don't remember what year caddillac stopped putting the suspension switch in the trunk, but if the switch has been turned off the light will remain on as well. there is a level sensor under the rear of the car connected to the suspension you can try to disconnect the arm and manually move it and see if the pump kicks on. there is a few second delay before you hear the pump. if the fuses are good and the switch is on check for voltage at the pump when you move the level sensor. check for signal from the sensor. if pump runs and shock don't air up check for air leaks with soap water spray, and/or air bypassing valve. hope i helped you...dustang

maybe there is a leak in the system and the pump is constantly trying to compensate. if the vehicle sits for a day or so, will the suspension sag in a certain spot? maybe a leveling sensor. may have to be diagnosed with scan tool