Installed Trilogy SC and now air ride inop

[Kundinge]

I had a professional install a trilogy motorsports supercharger (LOVING IT). I picked it up and all was fine but after 2 weeks the I noticed it was sitting low in the rear. It seems the air ride suspension is not working (probably not powered). Checked the fuse and it's ok. Flipped the switch in the trunk to no avail.

Anyone know whether there is a point in the installation where they would have messed with the electric to the air ride???

Thanks,

Don

[RR|Suki]

I had a professional install a trilogy motorsports supercharger (LOVING IT). I picked it up and all was fine but after 2 weeks the I noticed it was sitting low in the rear. It seems the air ride suspension is not working (probably not powered). Checked the fuse and it's ok. Flipped the switch in the trunk to no avail.

Anyone know whether there is a point in the installation where they would have messed with the electric to the air ride???

Thanks,

Don

If the air ride was off the back end would bounce all over the place...

[Master]

But if it is sitting low, then that is likely the case. It is possible (though why, I've no idea) that they may have bumped the leveling control rod on the axle. You didn't have gears installed lately, did you?

[Breadfan]

There isn't much in the Trilogy install that could affect the rear air suspension.

The only thing I'd wonder about is when the intercooler pump was wired if they pulled anything loose or blew a fuse in the electrical box.

Does the air pump run off a relay in the distribution box? Maybe that's a spot to check as well.

[RF Overlord]

Fuse 16 (15A) in the passenger cabin protects the following circuits: Reversing lamps, Shift lock, DRL module, VAP Steering, Electronic day/night mirror, Overhead console, Air suspension, and Climate control.

High-current fuse 114 (30A) in the engine compartment protects these circuits: VAP Steering, Air suspension compressor, Instrument cluster

If either of these fuses were blown, you'd have a lot more things affected than just the air suspension.

[fastblackmerc]

Don't you have to upgrade the fuel pump? If so they prolly had to remove the gas tank. They might have disconnected the leveling arm from the Watts link to the body.

That's my guess and I'm sticking to it.

[O's Fan Rich]

Don't you have to upgrade the fuel pump? If so they prolly had to remove the gas tank. They might have disconnected the leveling arm from the Watts link to the body.

That's my guess and I'm sticking to it.

Not on a TRILOGY kit, unless you want too.
Now along that line... who attached the KB boost-a-pump?
The wrong wires didn't get snipped by any chance?

[Breadfan]

Don't you have to upgrade the fuel pump? If so they prolly had to remove the gas tank. They might have disconnected the leveling arm from the Watts link to the body.

That's my guess and I'm sticking to it.

You don't have to upgrade the pump in the tank on a basic Trilogy install - uses the stock peice. You do however install a Kenne Belle boost-a-pump, they may have damaged some of the wiring when installing that in the trunk?

[RCSignals]

You don't have to upgrade the pump in the tank on a basic Trilogy install - uses the stock peice. You do however install a Kenne Belle boost-a-pump, they may have damaged some of the wiring when installing that in the trunk?

That or coincidently something has failed in the air suspension system.
It did happen two weeks later after all

[Breadfan]

That or coincidently something has failed in the air suspension system.
It did happen two weeks later after all

Good point, they do hold pressure, but not sure even a newer system would hold for 2 weeks time.

My friends town car has well over 100k and I notice his air compressor comes on more often than mine, probably due to the older air system leaking more than my lower mileage one, even still, I suspect you would notice sagging prior to 2 weeks time.

[Drock96Marquis]

Is the check air suspension lamp on?



Do you hear the compressor cycling?

[Kundinge]

Thanks for the suggestions. Checked the fuses in both locations and found them OK. Not hearing the air compressor at all. They did do a dyno with the wheels off so you may be correct about the leveling arm.

[Badger]

The air suspension has an OBD connector. I've never done it but in theory you could see if there is a code showing.