jcasey007
Well-Known Member
- Joined
- March 17, 2009
- Messages
- 523
- Reaction score
- 0
- City, State
- Stratford Upon Avon, Warwickshire
- Year, Model & Trim Level
- Jeep Commander 5.7L HEMI
Last weekend I replaced among other things the rear shocks, the old ones would sag if load was applied in the boot and the compressor would kick in and pump them up (with the load in the back it would cycle the compressor every 20 seconds.
So after fitting the new back end (i.e. shocks) the ride height is OK but when load is applied and the compressor kicks in the height does not change. again the compressor cycles every 30 seconds (without a change in height and after 30 mins the ARC shuts down and shows as a fault. This is reset following a cycle of the ignition key.
I know the height is not changing as by sitting in the back with a tape measure I can see a deflection of 3cm causes the compressor to kick in and it does not raise up.
So tonight I took the compressor assembly and the solenoid off the car.
I have to assume the new shocks are good! So I'm trying to work out what each of the components do and how the system works.
http://img827.imageshack.us/img827/3711/airtank.jpg
http://img231.imageshack.us/img231/2660/img00193201105081941.jpg
http://img5.imageshack.us/img5/9294/img00194201105081941.jpg
Looking at the compressor assembly, it looks like a standard Piston based compressor with side valves and either an air tank or some posts call it an air dryer. from here the single outlet pipe goes to a solenoid valve and then via a Y piece to both rear shocks.
So how is the flow of air supplied from the compressor and how is air let out of the shocks when they are too high.
I will do some tests on the compressor tomorrow so see if it will pump and I will test the solenoid valve to make sure It opens when power is applied.
does anyone know at what pressure the compressor runs at?
there are 4 wires going to the compressor assembly, 2 go to the motor and the other two go into a box on top of the compressor does any one know what this box does?
all help appreciated
So after fitting the new back end (i.e. shocks) the ride height is OK but when load is applied and the compressor kicks in the height does not change. again the compressor cycles every 30 seconds (without a change in height and after 30 mins the ARC shuts down and shows as a fault. This is reset following a cycle of the ignition key.
I know the height is not changing as by sitting in the back with a tape measure I can see a deflection of 3cm causes the compressor to kick in and it does not raise up.
So tonight I took the compressor assembly and the solenoid off the car.
I have to assume the new shocks are good! So I'm trying to work out what each of the components do and how the system works.
http://img827.imageshack.us/img827/3711/airtank.jpg
http://img231.imageshack.us/img231/2660/img00193201105081941.jpg
http://img5.imageshack.us/img5/9294/img00194201105081941.jpg
Looking at the compressor assembly, it looks like a standard Piston based compressor with side valves and either an air tank or some posts call it an air dryer. from here the single outlet pipe goes to a solenoid valve and then via a Y piece to both rear shocks.
So how is the flow of air supplied from the compressor and how is air let out of the shocks when they are too high.
I will do some tests on the compressor tomorrow so see if it will pump and I will test the solenoid valve to make sure It opens when power is applied.
does anyone know at what pressure the compressor runs at?
there are 4 wires going to the compressor assembly, 2 go to the motor and the other two go into a box on top of the compressor does any one know what this box does?
all help appreciated