Check Suspension light

Discussion of STOCK air springs, struts, shock absorbers, shocks, compressors, air driers, lines and systems.

Check Suspension light

Postby hadawayboy » Sat Aug 05, 2017 9:13 pm

My air ride, starting about last week, is acting up. its only the front end to. when I shut the vehicle off the suspension will lower almost completely down! so front tires are sitting in the wheel well pretty good! When I go to drive it the Front end wont air up like its suppose to unless I let it sit for about 5 minute give or take. now its never done this before! you can hear the air pump, I think it is, running constantly.. sounds kinda like hair trimmers. when I'm done driving the time I shut the vehicle off and get out the front suspension is already all the way down!

now I don't hear any leaks, and my check suspension light will only come one every once in a while.. is there any air schematics on here that I can look at to see if possibly a one way valve is bad or maybe its the pump I need to replace?

any suggestions or ideas would be greatly appreciated!

also sometimes the front suspension wont even air up at all
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Re: Check Suspension light

Postby oldschool1 » Sun Aug 06, 2017 5:38 pm

Welcome.
What year car?
Have you replaced any air springs since owning the vehicle?
The symptoms that you described indicate a leak in the system.
Our air springs are a rubber product with a finite life such as tires.
Perform the Soapy Water Test on your front springs.
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Re: Check Suspension light

Postby hadawayboy » Sun Aug 06, 2017 5:54 pm

The car is a 1990 and I haven't since being the owner! I don't believe they have before my self owning! I will try the soapy water test! Also I have noticed when the car is on the from airs up all the way and doesn't sit level like suppose to!
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Re: Check Suspension light

Postby oldschool1 » Sun Aug 06, 2017 8:09 pm

Yup.
Leaky air spring or connection.
Will you be doing the wok or having a shop replace them?
If a shop is to do the work, do not let them talk you into converting to steel springs. Move on to the next shop.
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Re: Check Suspension light

Postby robertbweltzien » Wed Aug 09, 2017 2:22 pm

A temporary solution is to air them up high where the leaky area doesn't flex. Push the height sensors in till it rises enough. Two in front one in back. Turn off the suspension switch in the left trunk above and in front of the doughnut tyre.
I did it and it got me by for a couple of months but don't think it fixes the problem. Much better to fix what you got and never go to steel springs.

Bob
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Re: Check Suspension light

Postby oldschool1 » Wed Aug 09, 2017 10:14 pm

Yeah,
A leaking air spring is similar to a leaking tire.
Replace 'em and do it in pairs.
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Re: Check Suspension light

Postby hadawayboy » Thu Aug 10, 2017 3:50 am

Thank you for all the responses! I will be doing the work my self! This weekend I'm going to check the the passenger front side bag, since it's the one lowering the most with the soapy water test. And I defiantly will not be converting! I prefer the air ride over steel! I will give updates after I check thank you again
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Re: Check Suspension light

Postby hadawayboy » Sat Aug 12, 2017 2:42 am

I found the leak! P/s front air bad leaks at bottom towards the tire! I took a picture but haven't found out how to post a pic on here! Now is air ride suspension same as steel where when you replace one your better off to replace both or can I just replace the one bag?

[img]20170811_165443.jpg[/img]
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Re: Check Suspension light

Postby 2manymarks » Sat Aug 12, 2017 2:38 pm

hadawayboy wrote:I found the leak! P/s front air bad leaks at bottom towards the tire! I took a picture but haven't found out how to post a pic on here! Now is air ride suspension same as steel where when you replace one your better off to replace both or can I just replace the one bag?

[img]20170811_165443.jpg[/img]

T
FWIW-IMHO, I believe it is best to replace the two, but it is not a necessity. Because aftermarket air springs are different than OEM, you may end up with two slightly different shapes. You should be able to equal them out using the sensor adjustment. I doubt that you would notice any other than that under normal driving. 8-)
As of July2017,[code][/code] 11Mark[*] VII's, 3licensed for the road:
1989 LSCMidnight/Current Red c/c (9G) mostly stock99k.
1989 LSCMidnight/Current Red c/c (9G) 124k, stock, needs airsuspension & bodywork.
1989 Light Titanium c/c (11) BillBlass-stock. miles unk
1989 LSCMedium Sandalwood (62) Mass air+ 111k FOR SALE $900.
1986 BB(8T)stock125k(wife'sDD)
1987 BB (4L)stock(miles unk)
1987 Base Model White (9L)107k(2.73rear)
1984 TurboDiesel Base model,Platinum(1Q),131k+ FOR SALE $1000.
Parts cars: 88LSC,89BB, 90LSC-TLZ5spd(complete conversion w/extras 4SALE)
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Re: Check Suspension light

Postby hadawayboy » Sat Aug 12, 2017 4:13 pm

Thanks for all the help everybody! And oh true I didn't think of that 2manymarks. I'll probably just replace both so I don't get a d/s leak out of no where to!
Thanks again everybody
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Re: Check Suspension light

Postby oldschool1 » Sat Aug 12, 2017 10:29 pm

You are welcome.
Thank ~you~ for keeping another Lincoln Mark VII on the road!
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