Hi my 2007 2.7td is not rising on the front end, I changed the compressor a few weeks back after the old one gave up, but still noticed the front was dropping overnight. Now as I said earlier the front will not budge. I have just stripped and rebuilt the front manifold thinking that was the prob but it's still the same, back end is going up and down no probs. suggestions ?

There is a valve block next to the compressor. This sends air front and rear so be worth checking it too. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Thanks i will have a look at that cheers

Both valve blocks stripped and rebuild ,still no joy with the front suspension dash says rising constantly and back still going up and down no prob ..... Any suggestions

When you changed the compressor did you change the relay too? Not sure it makes a difference but it is one of those "you must do" things.

Other than that, the only thing I can think is a leak between the reservoir valve block and the front valve block. Or the air suspension module has gone wrong for some reason. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Waiting for the relay to come 7 day delivery .....that's the problem with the highland it's too far from anywhere will give that a go and see where I go from there I have a mate with a link up so will see if any codes come up

There are a couple of relays that are the same in the fuse box so swapped them over but suspension still not playing , I am planning to swap the front and rear valve block to see if the problem goes to the rear? Anybody don't this before? Are the valve blocks the same? They look the same..... Local (120miles away) dealer have no relays so waiting for ebay one to arrive before I can swap,

The valve blocks are not the same. If you have a rear valve block at the front then this might cause a problem.

Quote:

The front and rear axle valve blocks are similar in their design and construction and control the air supply and distribution to the front
or rear pairs of air spring damper modules respectively. The difference between the two valves is the connections from the valve
block to the left and right hand air spring damper modules and the valve size. It is important that the correct valve block is fitted to
the correct axle. Fitting the incorrect valve block will not stop the air suspension system from functioning but will result in slow raise
and lower times and uneven raising and lowering between the front and rear axles.

Don't have the valves swapped just thought it might be worth a go to see if the front raises, but if they are not the same its prob not worth doing , just to re clarify the front just stopped rising a few weeks after changing the compressor

If the front doesn't rise at all that suggests, to me at least, either a problem with the reservoir valve block or the pipe between it and the front valve block. Something is preventing air getting to the front valve block. Are there any errors showing (either a light on the dash, a dash message or error codes stored)? It's possible that some dirt got in to the pipework and has caused a blockage.

The last option is that the air suspension ECU has decided to throw a wobbly. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

I had a very similar issue on my 06.
It turned out to be the exhaust on the FBH had perished thus the hot gasses hitting the air suspension air pipe which caused it to rupture.
Had the pipe fixed a couple of times before they found out why it was rupturing.
May be worth a look
UK Guy RRS HSE with a few extras & a
2013 RRS Autobiography

Fbh?

Relay arrived at long last and its the wrong one arrrggg , so got my old one off and got it checked and every thing seems fine with it, i will take the valve blocks off again and see if anything look obviously wrong, has anyone changed the compressor valve block supply line to the front and back before, but its only one valve so i dont see how it will affect the front only??, is there any other valve blocks hidden away anywhere??

Sandychris wrote:

Fbh?

Thanks for all the help so far this is where I am now .......Front crossover valve replaced and still the same issue, back goes up no probs and the fron struggles and the dash is saying rising slowly , then will go into extended , then shuts down and give the suspension error 30mph max , have had all valves off and cleaned checked they worked thought there was an issue with the front valve set as the crossover valve felt a bit sticky and was taking 4.6 volts to energise it , so far new pump and new front crossover valve .... Anyone got any suggests where to go from here