hey guys i have a 2004 jaguar xj8 and the dash said air suspension fault. but rear suspension is extremly high and the front looks normal as usual. what can i do before i bring it to the dealer ..

ill appreciate anyone that knows thanks guys

god bless

 

Welcome to the forum Alexis,

I've copied this question from your Intro.

Members here with the same model will be able to advise on the suspension issue.

Graham

 

I would get the height sensors checked out. Suspension height may need recalibrating. Rear has two sensors, one for each side, front has one that controls left and right together.

 

hey thanks for the reply i went to 3 mechanics that dont know were the senors are located so i guess i have to go to the dealer i have no choice unless i can check them myself

 

Hi Alexis,

If both rear corners are equally too high, it is possible there is a problem with the valve block, which is mounted under the carpeted panel in the trunk, near the air reservoir. The valve block apportions air to the front shocks together, and the rear shocks separately, to maintain the correct ride height.

It is also possible there is a problem with the exhaust valve, which is part of the compressor assembly, which is mounted inside the front left bumper cover. The exhaust valve releases system pressure when the Air Suspension Control Module determines that is necessary to level the car. If the exhaust valve is corroded or otherwise stuck in the closed position, the system cannot release excess pressure to level the car.

Since each rear wheel has a separate height sensor, I suspect that both sensors or their electrical circuits would have to fail to cause both rear corners to at the same elevated level, and it seems unlikely that both sensors would fail simultaneously.

I do think you would be well advised to have the dealer check for any diagnostic trouble codes related to the air suspension. Armed with that information, you may be able to conduct the necessary repairs yourself.

Cheers,

Don

 

hey guys i have a 2004 jaguar xj8 92,000 miles i came across a promblem. the car was fine i super cleaned the car in and out trunk and all.. and i try to take it for a drive and all the lights went on didnt wanna go in drive.. and in the navi it says commnication problem..

please guys i disconnected the battery not sure if i should do that any help please

 

If you still have the car battery disconnected, it wouldn't hurt to clean the battery posts and the battery clamps. Keep the battery disconnected for a good 20 minutes, and then securely reconnect the battery clamps. This will cause the computer to perform a hard reboot that "hopefully" will clear those faults.

 

i changed the battery and cleaned everthing and it still says communication fault

 

Remove the clamp from the car battery's negative post, and then reconnect the clamp after 20-30 minutes.

 

i did that and nothing i put the original battery back in and still no crank still shows tranmission fault engine light all the lights lol... fml .. i changed the filter now i got somebody coming with a computer to read it

 

I'm sorry that you incurred other faults with the car, but it sounds like you should consider having the dealer look into it.