Ford Air Ride Rear Suspension Down Diagnosis & Fix

Below I have listed the parts replaced in this video along with the most common causes for the air suspension being down-
Compressor Relay Ford-(check fitment guide)
www.amazon.com/...
Compressor Relay Aftermarket-(check fitment guide)
www.amazon.com/...
Compressor Relay Pigtail-(check fitment guide)
www.amazon.com/...
Air Compressor Complete Aftermarket-(check fitment guide)
www.amazon.com/...
In this video I show you how to diagnose why the air ride compressor is not turning on and pumping up the air ride suspension on your truck.

[@thomasmcnulty2604]

To this day your video is still helping people and kicks ass!

[@jackieknapp6474]

I APPRECIATE PEOPLE LIKE YOU who take the time to make these videos! You saved me money I didn't have and gave me quality time with my pop! God bless you:)

[@Clif-gj7kl]

I have an Expedition-1998. Rear pump went out. So I determined that soon the front would go out and cause me to spend more money. So I purchased a conversion kit to go with springs and shocks for the front and back. ($419 for the kit). Now the vehicle sits stronger and slightly higher, giving me a smooth ride and a peace of mind.

[@robertmalone483]

Can you do a video on air tube routing, common fail points, how to locate and repair air leaks? I’ve got a 2003 Navigator to repair. PS: Great Job on your videos (a small laser light helps identify parts in tight places ….)

[@reidejensen4990]

Great Video! Thanks for posting! I have a 2008 Expedition. My problem is the rear will sag like you show in your video however when I start the car and go in reverse or drive it will start to pump its self back up. This is random, in other words it can maintain its normal height for a couple days and other time it will sag every day. Any suggestions? Thank You in advance for your reply.

[@jaredpompa2816]

Question: First, thank you for the video. I have a 2010 navigator that the rear suspension drops intermittently. what are your thoughts on that. It will drop while driving, but then once the vehicle has been turned off then back on, it lifts and is good for a day or so. any advise is greatly apreciated.

[@ryanhebert8619]

Appreciate the video, it sped up my diagnosing process. However, my $20 voltmeter made this testing 100% easier, faster, and safer. I'm a little surprised someone with your experience and knowledge doesn't use one??

[@michaelandersen4268]

Thanks it fixed my problem loose connection in the connector at the relay :-) like + sub

[@aramos811]

I own a 2007 Lincoln Navigator Ultimate and my check air suspension light comes on now and then. Do you have any videos for that year and make to diagnose the issue?

[@duumahh]

Wish the problem was simple for me. Ive replaced a new air compressor, air bags, and relay switch. Spent 2 grand through mechanic shop and still lowered. Asked about the pigtail and the auto part store has no clue what that is. Can you be more specific please?

[@printissgraham4930]

I have that problem you say 2,000

[@ajparr]

This video was a great starting point for fixing the same problem on my 2010 Navi. Thank you for taking the time to post it!

[@gravitationalwavemaker9521]

ajparr what was the problem with your 2010 navi? I got a 09 navi with same problems

[@ajparr]

The rear wheel wells were only about an inch above the tires and when driving it, any bumps at all caused long oscillating bouncing in the rear end. Good luck fixing your '09, but it should be fairly straightforward!

[@edgarromero131]

Where is the relay on your 2010 Navi? I have an 07 and i cant find that relay? Please help

[@Darkwardrums77]

Thank you, sir!! Had a "Check Susp" light on and the compressor wouldn't turn on.. Ended up being a loose plug into the relay.. Zip tied it up and we're good to go.. Thank you for your awesome and helpful videos!

[@donl3381]

Hi can you pls tell me where to find the plug to the relay that you zip tied?

[@scottb5933]

Dude perfect...thanks for taking the time to provide a detailed video w/simple clear instructions!!! :)

[@derrend7614]

This video very very helpful still..was my relay..saved me a ton of time and a super easy fix

[@tonyhern2647]

found some oem springs to swap out for the air spring. is it a direct swap. can I just change them out with out having to make a modification​

[@ooohhhsnap9241]

Hello and thank you for your videos, quick question, I have replaced my bags and compressor (208k miles on original) however the compressor runs intermittently and drains the battery even while parked with no key, do you think this is a plating issue or do I have a very small leak somewhere?

[@hakinme]

sound alike air is escaping from the rear end and I don't know what exactly is wrong. what could it be?

[@MCHNCTCH]

Hey FordTech. Great videos. I was wondering if you knew about when the compressor comes on to often. I have a Lincoln Navigator 01 that has the rear height sensor @2.4 volts and the front at about 3 volts. Both sensors seem ok when I move them up/down the scan tool voltage goes up/down. When the compressor comes on the front gate/fill solenoids come on usually. Is the the front height sensor voltage too high? If the car sits it doesn't drop after a couple hours

[@marinoperna]

what scanning software/hardware are you using? 2005 navigator but i cannot get any of my scanners to view voltage to each or any sensor

[@jujuey3balls979]

99 Navi with the rear low. Getting no ground from control module. Anything to check for other than just replacing the module? Thanks

[@matthewkee7727]

I have a 1998 Lincoln Navigator the compressor will not kick on but if i bypass it like you did in the video the compressor will work the second test you did with hooking a window motor up I also did that and that worked but the very last test did not work I could not get my test light to light up what would be the cause the test light is good. I checked first..

[@Rhinotuff619]

I have a 1999 Ford Expedition 4WD with four corner leveling. My rear is sagging when parked AND leaning hard to the right when running. What should I look for?

[@FordTechMakuloco]

David Feinberg Leaking air bags from cracks in the bag.

[@abelrubio5409]

@@FordTechMakuloco great video! I have a cuestión, would podible put a lift kit plus the stock air suspension? Thank you !

[@ericsmith6355]

I need help understanding what to use for the power when I jump my sensor fordtechmakuloco you don't show what your wired to for power in the video when you power (jump) up the compressor?

[@danscythes8621]

Where is the relay located

[@kd7cwg]

It's amazing does thought it was a good idea to put that relay and pigtail right where the tire is going to douse it with water and salt 😬

[@ronbaynes2755]

I have both an 06 & 07 Navigator. Would the air suspension pump from the 06 fit the 07 if I needed to swap it out ? Thanks !

[@jimbored88]

I have a 2003 Navigator I think the air bag on the driver side back will not pump up but the other side pumps up do I only have to replace the side that is bad or do I have to replace the right and left bags.

[@garyholbrook9576]

I love your videos! Thank you! I've got a 2010 Expedition and discovered that it requires a different approach. Even the service manual seems to make it harder than it needs to be. On a 2010, going in through the headlight seems to be the easiest. kzbin.info/www/bejne/inSmg5VmZrl7oaM

[@kblend7225]

I have a question hope you can answer, 2001 lincoln navigator 4x4 symptoms compressor cycles on and off continuously untill suspension light comes on also after car sits off for about 40 minutes compressor runs and rear end drops. I checked for leaks and I did find a leak in the front right ( p side ) air shock housing not the rubber the shock rides on or the fitting but the housing. so that explains the compressor cycling. Now for my question can that leak cause the rear to drop as described. Thanks I appreciate your help.

[@kblend7225]

So I replaced the shock, compressor still runs continuously, the rear looses pressure overnight but if I disable the system it does not loose air. Any thoughts?

[@aronchatterton4274]

did you ever find out your problem?

[@kblend7225]

No

[@ygbodybuilder3023]

did u find out yet because im having a simlar problem with my crown vic

[@aronchatterton4274]

honestly no, i gotta put off working on it for a few weeks but you can keep hitting me up bout it cuz when i figure it out ill prolly forget to message u bout it

[@darlenecasper3557]

I have a 2000 Expedition the relay and springs were replaced 4 years ago by ford service. I did the test you suggested by disconnect and reconnect and the compressor worked. Thank you for this video. I replaced just the relay only but then the sag happened again. So does that mean the pigtail needs to be replaced like you mentioned? How is this pigtail replaced?

[@FordTechMakuloco]

+Darlene Casper Most likely yes it does easy test is to unplug and plug it back in and retest if it work now you know.

[@ginamaco7193]

+FordTechMakuloco... I have a 2003 Navigator and all 4 bags are down. I replaced the right front blown airbag.The compressor is activating and air is coming through the lines to all the bags. I can hear all 4 air bag solenoids clicking on but it still isn't raising. Any ideas of what else it could be? I figured that changing the bags on the front as well as the o-rings on the back would have fixed the problem. still nothing. Any ideas?

[@bigone4u2nite]

Have a 1994 Mark 8 My problem is the back is down and the pump wont turn on Did 1st test jumpered big wires Pump works Used a motor from a kids electric car to load test #3 ground terminal to #1 hot wire Motor worked fine Used a multimeter to test terminal between 4 and terminal 1 12.2 volts all is good Swapped relay with ABS relay from drivers side of car still wont turn on the compressor Purchased a relay from a local auto yard on the chance the ABS relay was bad Still the pump wont work Any other suggestions

[@FordTechMakuloco]

Jam o I am not too familiar with those but what I can tell you based on your testing is you need to have the module scanned to see if it is seeing a height sensor fault which was common. Only place that I know of that can still pull codes from that module is the dealer.

[@CENTURl0N24]

We jumped the 2 wires on the pig tale and the pump came on but the car did not go up. With out jumping the lines, the pump does not come on. I replaced the relay and no change. 2 questions: Should the car go have gone up when we jumped the lines? What do I check next?

[@FordTechMakuloco]

+CENTURION24 The system is faulted therefore the module would never turn on the rear air spring solenoids to fill. You jumped the two wires but did you check all the other inputs?

[@geraldscott4302]

Ford air suspension SUCKS. My 2006 Mercury Grand Marquis had leaking air bags. I just ripped them out and replaced them with a pair of coil springs. Problem solved. Permanently.

[@thetimetraveler1427]

05 exp eddie bauer. When I turn on the fan or move electric seat the check suspension light comes and won't kick on compressor while I'm driving and thinks the trucks off and sqauts down. When I don't have fan or high usage of electronics it doesn't happen. Is this a relay or pigtail issue why it's shorting out ? Also sometimes my windows open and close fast. Sometimes there super slow. Also cd player skips a bit to like it's shorting out

[@adrianzhdez3541]

Hello.i have a 1998 ford expedition 4x4 and the rear suspensión is no working..have a black plastic line broken..its look like it is to hard to fix it..is broken behind the fuel filter..

[@thyluvglokiin2020]

I have a 2010 expedition and I'm having problems with my check air compressor keeps coming on and the back of my vehicle is basically to the ground. When you drive you can fill every bump, rock, everything you ride on. What should I do. Plus I'm 8 most pregnant and it's killing me

[@sean6049]

My friend has a 2005 Expedition, the air ride holds air over night, sometimes loses air periodically and starts doing the bounce. I'm trying to help him. Any idea what it could be?

[@mirrandadolph-white4116]

I got a quick question.. The suspension runs, but one side is too high whilst the other side is just below level.. WTH do I do with this :D Please help me help this SUV that is leaning Thank you in advance

[@thomasmullikin4185]

My problem is that the rear lowers and constantly turns the compressor on while driving. Now the rear stays down and the compressor just runs and does nothing. HElP PLEASE.

[@Wu-TangLAN]

**i don't have a ride height problem ** i purchased a 02 Ford Expedition Eddie Bauer 4x4: back in April 2016. the previous owner stated he had replaced the air ride compressor recently. He told me about an issue where the compressor will intermittently stop coming on (anywhere from 15-45 minutes of driving) and the check suspension light will illuminate on the dash.when that happens he said: turn off the truck and wiggle the air ride compressor relay and turn the truck back on which works but i can't keep stopping on a long trip every 30 minutes to wiggle the relay. what does this sound like to you

[@drwombat]

Bernard Gross did you watch the video? Replace your pig tail and for fucks sakes lend yourself a hand in informing yourself

[@froglobster]

THANK YOU! My 97 Continental wouldn’t lift...I went to my local wreckers and got the relay from another Cont 7.95 all good now! Ford was $365and Lordco was $182......read too many about conversions where the car ride feels like a truck ride now having coil springs no thanks. Also the Cont in the wreckers I got the compressor and height sensors and Arnott air bags- sweet ride now!

[@froglobster]

December now back end won’t lift after all the switch outs....☹️

[@markfryer5289]

On the 07 expedition it is easy access by removing the passenger side head light everything is right under it

[@NorthwayFordLincolnBrantford]

Where is that relay located??? I have the splash Shield off and the headlight off can’t find the relay!!!

[@rosalfamiliaeliassilaogtoc5647]

Could you tell me what shock absorbers and springs the truck has, why do I want to change the suspension? Ami truck is a Ford Expedition 1999 5.4 ediee bawer

[@rendelkirby4908]

very helpful fixed it for 157.00 changing out the relay control. mine was oxidized bad and cracked. tx for posting.

[@bigbubba1384]

Do you have a expedition if you do I would look to ask you something do ford expeditions have the power to do a burnout

[@darlenecasper3557]

Thank you again. But I remain confused to your response. If I replaced just the relay, then a week later the sag happened again. I unplugged and replugged the new one and it worked. How do I know it is not going to sag again.....til I wait again. So your answer is to replace the pigtail also? And how is the pigtail replaced?

[@FordTechMakuloco]

+Darlene Casper Next time it happens where the rear is sagging and the pump is not coming on like usual disconnect and reconnect the relay pigtail, if it now comes to life and work you know you need to replace the pigtail.

[@Brooklynfishing]

Hello good morning, I have a 98 lincoln navigator , with the rear sit low , the front came up ok, this all start since I install the brake light switch wrong, help me I change the relay same thing. Any fuse link to the rear thanks

[@DANBED20021]

1) what year is this vehicle? 2) where is this relay located?

[@danieldyer1]

Having just done this troubleshooting yesterday, the pigtail and relay are best accessible by turning the front wheels all the way to the right and then looking in the passenger side front wheel well towards the front of the vehicle.

[@DANBED20021]

@@danieldyer1 thanks but I was looking for an 08 Navigator! Its located in the under the hood junction block! Referring to the relay! I finally found it after calling multiple ford and Lincoln dealerships! You can also control it in this vehicle year range via the media center! Using the "set up" and the "RESET" buttons on the the media center!

[@DrLuigiPhd]

I switched to tradional spring and shocks from air suspension. Do you know of a way to stop the check air suspension light in the info dash center? I don't think I left the ride height sensors on otherwise I could just tie them up and bag them. I read about cutting one wire to fool the computer, but it was on a lincoln mk6.

[@DANBED20021]

Well it depends on the year! I personally know that it is done via the media control center on the 2008 Navigator!

[@Nopanic631]

Hey did U ever figure it out I got a 05 n it’s converted but the dam beep from the alert is killin me did u find out how to get rid of it?

[@davidchampion7927]

2007 Expedition EL- Recently failed to toggle off the Air Suspension when towing a trailer and later when using a Hitch Rack (heavily loaded)...I get an error every time when the car starts that the Air Suspension is OFF, It does not give me the option on the Message Center to toggle it back to ON..Any thought? I have not noticed any sagging or handling issues.

[@FordTechMakuloco]

+David Champion Follow my pcm reset video and see if full operation comes back.

[@Eternallucidnightmares]

What color is the thin wire next to the thin green wire. Can’t tell the color of it in the video. Are the thin wires specific to number 3 and 4 on the harness or if the green wire is hooked up to 4, will that matter?

[@jamesbrewster1964]

FordTechMakuloco, I have a '00 that I thought had sagging rears. I followed your steps and tested the connector, and the compressor kicked on. I don't have the proper equipment to test the two smaller wires, but I think the relay works because when I turn the truck off, I can hear clicking that sounds like the relay working. I started looking at the height sensors, it looks like the rear one is extended, but the funny thing is that the rear bags are full to the max. What do you think I should check next?

[@FordTechMakuloco]

James Brewster The relay does not click it is solid state and is likely your concern still.

[@hodlzombie]

So I did all the tests on the pigtail like you in the video, all passed. Replaced Relay and nothin. Also the height sensor is the older one not the linkage one. Help anyone?

[@Amromio310]

01 Navi, rear stays up will not drop or level out? No leaks, compressor doesn’t seam to come on, Help!

[@BuffMyRadius]

I was having the same problem on my '00 gator. There's a wire that runs down the passenger side frame rail that had gotten snagged by a stick so the system would air up, but then it couldn't actuate the solenoids that are mounted on the bags to vent the system so it would get stuck aired up. Pull the ride height sensor like he does at the beginning of this video and confirm that those bag solenoids are clicking.

[@generalrambo1516]

I have the opposite problem- rear is constantly inflated. How fix?

[@8345434]

You do not want to drive if the back of your truck is bottomed out with no air . It's like riding a bull on a trampoline.

[@marinoperna]

What scan tool will allow me to read the sensor voltage. none of what i have even looks at air suspension (2005 navigator)

[@brittanyfarina9848]

hey I have a 98 navigator 4x4 my truck leans side ways on driver side I know I have a bad air bag on the back driver side but the whole truck leans not to bad on front but could it be Bc of the bad air bag in the back

[@timmurray7639]

Great video. Should air bags be replaced in pairs and is there a good aftermarket bag or is it best to use Ford bags

[@1995dez]

I have an issue with my 98 ford expedition. Both air bags went out recently and we ordered and installed new ones. The driver side has aired up fine but the passenger side only airs up some. It was taken off and put back on to no change. Ive been bounced and wobbled enough, What could this be?

[@drwombat]

Thank you for doing this video. Is this system the same on panther chassis with air suspension cv, p71, town car, etc? All info seems to be about the SUV models

[@earnestinehinton2529]

i have ford expedition 2000 eddie bauer and yesterday i heard a noise like air leaking out of a tire and my rear dropped. so, now the rear will not raise. does that mean the complete rear suspension and struts have to be replaced.

[@FordTechMakuloco]

+Earnestine Hinton Likely a bag failed if its that bad.

[@jarodmorris611]

+Earnestine Hinton I didn't think an Expedition with pump and air bags have struts because essentially aren't the air bags functioning like the struts? I just bought a 1997 Eddie Bauer Expedition with rear suspension issues but I haven't crawled under to take a look yet.

[@earnestinehinton2529]

+Jarod Morris it was the lines to the bags were bad

[@andrewblaugh6988]

I have a 2012 navigator but i can not find the air relay.

[@dynamitescottwhite]

Any ideas on an equus that sometimes will sink on the rear drivers side?

[@fordinator]

Great video. Question, ii have a 99 navigator here. The pump runs when jumped the middle small wire works as ground. The end little wire doesn't ground. Cold this be bad connection or would this mean a larger problem.

[@FordTechMakuloco]

Is the rear height sensor and linkage connected up and not fallen off? If so I would have it looked at with a scan tool so they can check the height sensor voltages etc to see why it is not commanding it on.

[@fordinator]

FordTechMakuloco currently both sensors are hooked up and appear to work.

[@brianlowmaster4437]

finally got totally @*(&^ at it last night and tore it apart. the 03 eddie is different than what I could find online. figured out where the relay is and started testing, the first tee in line is leaking like crazy. going to start with that one and work my way to the back. on the eddies the relay is attached on the top front of the compressor, easy access to test. last year I replaced the drier thinking that was it. ford dealers are no help on this issue unless you want to spend boat loads of money. thanks and I will keep you updated. your video has gave me the most info. Thanks!

[@devynmonique4845]

Where can I locate the compressor? 2012 Ford expedition king ranch

[@hectorgutierrez9396]

Excelent Video and explanation!... Thanks!

[@vergingalactic6605]

Hello Sir. I have the same problem on my 2001 Ford Expedition. The back end sagged everytime I park it overnight. I'm thingking I just need to replace the air suspension relay? and sometimes even while I'm driving the back end sagged. Is it ok to drive it even when the back end sagged? I suspect maybe the airbags are leaking. I even thought about maybe puting a duct tape on it for temporary only. Any suggestions? Please help. Thank you.

[@FordTechMakuloco]

VERGIN GALACTIC Yeah it sounds like the bags them selves are leaking check them with soapy water when they are pumped up.

[@TODDSTAPLES]

1997 2wd expedition. rear end drags if it sits overnight. if I just touch the pigtail, the compressor kicks in and the rear rises. probably corrosion in the pigtail? the Motorcraft version you speak about has about 1 foot of wire of the connector, and I'm not sure where they go. so I just cut and splice near the connector?

[@TODDSTAPLES]

My issue is getting worse. It now takes a lot of pressure to get the pigtail to make connection to the relay. ANy ideas?

[@Montgomerygolfgator]

+Todd Staples remove the battery, and try electrical contact cleaner. You might also try using an eraser around the relay pins. It works on computer parts, I don't see why it wouldn't work here.

[@nicholasstritzinger2452]

I have a 1998 Explorer Limited and the air ride compressor keeps turning on and off. A line leak?

[@FordTechMakuloco]

More likely to have an air shock leaking as the suspension rebounds.

[@cojail6424]

my tuck is the just example in this video. and alot of air is blowing out the passenger side of the engine what can i do get that rear up.? and why is all that air blowing out like that? (even with the hood down the blow is powerful)

[@FordTechMakuloco]

Is the compressor coming on?

[@daviddavis6492]

I have an 02 Lincoln continental I ran it through a carwash and a few hours later my rear-end dropped what happened and how do I fix this

[@DavidLee-wx1ku]

Is the WPT392 pigtail you listed the correct connector for a 1998 Lincoln Continental Air Suspension relay? I would think that all Ford connectors for this part are the same because the Amazon link you have listed says the pigtail won't fit a 1998 Continental.

[@davidtross125]

Where exactly is the air compressor n relay located? I thought I missed it in the beginning but it wasn't mentioned

[@josejorgegonzalezmorfinez3621]

Under left head light.... Back the fog light

[@SUCCESSWITHBUDDY]

I was looking for the same thing mine thanks

[@296jacqi]

I’ll never buy another vehicle with air ride. I’ve had nothing but problems that are expensive to fix. Yeah, they’re cool when they work, but once you’re out of warranty, you’ll be selling your house to pay for repairs.

[@bcbp14]

I jumped the compressor and it turns on but jumper wire gets very hot. I tested the other two wires with a multimeter and get about 12 volts. Compressor will still not automatically activate. Both height sensors look OK. What next? Forgot to mention. I disconnected the battery to clear the check suspension light and still no change. Edit: replaced relay with one from a junkyard and all is well. Also, I bought the truck a month ago and the rear is always riding at max height giving the truck a forward rake.

[@meganjordan6597]

I had a local mechanic say they replaced my shocks and struts but now it's worse. They are saying the only thing they know to do now is convert over to spring shocks and I just don't understand why they can't fix it like it's supposed to be fixed. I wish I understood everything u are talking about. I'd fix it myself

[@MrTricksterRickster]

2010 Lincoln Navigator Air Ride Suspension Control Module Replacement: system has no air leaks, compressor comes on and brings vehicle up to correct ride height. however system then vents and currently is squatting at the rear. How involved is it to access the module?

[@katalishow3937]

Where is the locate of air compressor relay for 2007 expedition

[@GoldyCraft79]

0:10 I thought the Ford Expedition had no air suspension.

[@gustavohidalgojr.6343]

Where is this module located on a2012 expedition El??

[@tjmartin1085]

So the last small wire you test on the relay. If I jump the blue/pink (constant power) to the last wire black/yellow? and don’t get any light on my test light, what would be my problem?

[@LaTerriaHolloway-c5g]

Hi why do I not have power at my air ride compressor on my 2005 Lincoln Navigator..no power at plug ...

[@LaTerriaHolloway-c5g]

Why my compressor plug has no power

[@Mari-qe5uf]

having a similar issue with a 2004 Ford Expedition Eddie Bauer Edition..lines replaced, bag holds air, but left side wont raise. will work one day and the next it wont. my mechanic replaced the lines when they rotted..any suggestions? right side is fine

[@davegaborik3451]

I have a 1997 Ford Expedition and the back right side is sagging. The compressor kicks on and pumps it back up. So does that mean that my bag has a leak in it. If so how hard is it to install the conversion kit on my Expedition?? Thanks

[@cb6628]

I have a 2000 Limited AWD V8 5.0 -- The pump seems to work as it's coming on all the time, and you can see the back lifting... there doesn't seem like too much noticeable sag. How would I check for leaks? Would you recommend converting from air to gas to just bypass the system? As of recently driving my vehicle feels like I'm in a boat.

[@8345434]

Oh no ! I wish I would of seen this before I dumped my Navigator. I was getting rid of it anyway. But it would of been to know what was happening.

[@Benjamin06267485]

I NEED to know what is that sound on 6:19 to 6:21 where like the back makes a sound... like lowering or leaking? Because everytime I turn off my 2000 Expedition and close the doors it will make that sound... Thank you.

[@robertbarrera7875]

Hello everyone. Can some one please tell me if my 1999 expedition 4x4 has the same air springs front and back??? Or are the front ones different? Thanks people....

[@chadhill7253]

I have a 2000 Lincoln and its sagging in the back, the air compressor will not come on and we checked the leveling sensor in the back. What can it be cause its clicking but won't air up?

[@builtbybil]

I HAVE A 2008 FORD EL EXPEDITION WITH REAR AIR RIDE. I REPLACED MY FRONT SHOCKS/STRUTS AND NOW I BOUNCE GOING DOWN THE RAOD. THE COMPRESSOR SOUNDS GOOD AND THE AIR BAGS FILL UP. ANY SUGGESTIONS?

[@FordTechMakuloco]

Bil Brunson So front is not air ride right?

[@louiselee842]

Bil Brunson I

[@louiselee842]

FordTechMakuloco

[@pringlecaleb]

We have this problem on our 1998 Navigator. Unplugging the pigtail and plugging it back in selectively kicks the compressor back in and pumps up the back end. Sometimes it works most times it doesn’t. I tested all circuits on the pigtail and they checkout. Is this just a relay problem or should I just replace both relay and pigtail?

[@richpeck-lippsplitter7213]

FordTechMakuloco- most informative media on the net! reattached the pigtail to relay and jumped the fat wires- both failed. logic and as you stated its the pump, direct power test and voila its alive however only front bags inflated. rear bags hold air. havent heard the pump run normally. thinking its the relay and pigtail? thanks again

[@jackieknapp6474]

My relay under the head light on the passengers side just had a loose connection! We also discovered my car had been in a flood something carfax didn't show I know now what to look for red clay is what we found on the steering column -Jackie

[@johnespinoza4792]

I own a 2007 Expedition. Recently the rear air suspension loses air. A few days later there is a loud grinding noise in the engine compartment and some fluid leaking right near the front differential gear. I checked and replaced both the short shafts on front end and the transmission. Didn't check the air pump nor dryer. Could the pump be leaking the fluid as well? Front air suspension maintains it's pressure.

[@jameymagee2288]

my 2002 lincoln navigator has an issue I can't seem to fix. I have replaced the compressor and the relay. The pump comes on for a few minutes but the rear does not lift up. I cant seem to find any leakes.

[@bobdimartino6738]

hi i have a 2003 grand marquis i changed the pump fuses are good relay is good still not working. does my car have that type of hidden relay or is that just the trucks thanks

[@bambam73003]

I have a 2000 4wd navigator both sides are low but the passenger side is lower.low enuff where I cant put my hand on top off the tire.the pump turns on pumps for a little bit then turns off.this is just in the rear

[@BigBadViperTurbo]

I have a 2004 navigator. The pump comes on and raises the drivers side but not the passenger side, so I drive around tilted. Any ideas?

[@FordTechMakuloco]

+BigBadViperTurbo Rear only or 4WAS?

[@BigBadViperTurbo]

+FordTechMakuloco it is 4 wheel drive, and it was the front that wasn't raising up. The battery just went dead and now the entire thing isn't working at all after battery change.

[@bradbair1405]

FordTechMakuloco I have an 07 ford expedition rear air suspension. Passenger side pumps up drivers dont. No sign of air leak.

[@eluv9660]

I have 2000 navigator and have replaced both bags, compressor, relay and pigtail. only right rear does not raise up. Would it be the solenoid on that side?