Land Rover Repair: Air conditioner, engine firewall, landrover discovery


Question
Thank you so much for your suggestions. I will check the carpet, any ideas on how to get in to the area between the firewall and the engine is it a do it yourself kind of thing? I dread the thought of taking it to Landrover, we already have our son's 95 Discovery sitting in our garage while my husband tries to replace the clutch, it was murder to take it out but Landrover wanted huge amounts of money to do the job!-------------------------
Followup To
Question -
There is a rolling water noise that appears to be coming from the inside of my 2000 Landrover Discovery Series 2. It is loudest in the passenger well close to the engine. At first you could only hear it as the truck turned a corner but now it is doing it from a starting position. The noise is like a fish tank, part filled with water, that is being tipped back and forth in slow motion.You can just picture water inside there trapped, slowly sploshing back and forth. We have tried to "un bung" the pipe from outside the vehicle with no luck. Someone mentioned bleeding the system . We cannot find any info on how to do that or at which part inside or out we should be doing it from! At first i thought that heavy rain had somehow got in to the car somewhere but since it seems to be getting worse I am assuming that it is the air conditioning. Any ideas?
Answer -
Hello Camilla,

I suspect that its water (maybe from rain) that is sloshing around. It' possible that AC is also adding water to your problem.

To find this water you may have to investigate between the dash and the engine firewall.  The engine area is steel and the fender panels are aluminium...somewhere lies the problem.

Most LR's have water problems and it usually associated with the barrier between the two metals (steel framing with aluminium panels).  You can also check the footwell areas (under the carpet and sponge barrier) for water.  You'll be amazed at how much water that sponge barrier can hold!  I've drained 1 litre from the passenger footwell area alone.

Best of luck,

JohnMc

Answer
Hi Camilla,

I think its possible for a DIY'er to find the source of the water ingress and to repair it.  You may have to remove the passenger fender to see if the steel frame has any rust stains.  Perhaps the seal/weld has cracks and can be resealed.  

Also, look along the top of the firewall just beneath the windsheild (windscreen).  You may find pooling water there. I know I did and I simply drilled a hole to allow the water to drain into the engine compartment area.

After that, the first thing I would do would be to pull back the carpet and see if any rust stains are present on the firewall (from the passenger footwell side).  Telltale signs of water ingress are those nasty stains that look like tears of rust.   They will lead you to the entrance of water.

On my '95 Disco, I'll have to remove the passenger fender to get to one source of water ingress, the other is the rust forming just behind the engine.  A friend of mine removed his engine to climb into the area and fully remove the rust and perform the fiberglass patchwork.  He has both the time and the facilities to perform this work.  I, on the other hand, will have to work above the engine with the engine roof (bonnet) removed to make it easier for me.

In your case, you'll have to determine the likely area where the water is pooling and then decide if you can either tap and drain the location safely and/or seal the area thus preventing further water ingress.  My money would be on some of the welds have cracked and water is getting in from there.

As for replacing a clutch on your son's '95 Disco,  I had mine replaced and it cost me close to $2500.  The LR mechanic had found a defender clutch that was compatible and more reliable than the OEM Disco clutch that should have gone in there.  It took the dealership just over a two weeks to complete but its been good ever since.  I think the next time I have clutch problems, I'll try doing the work myself.  I admire your husband's sense of adventure...bravo.

Best of luck,

JohnMc