Freelander 1 td4 vacuum hoses

Hi. I obtained my Freelander recently and have been trying to get it MOT-able. I intend to revert it to standard for this and am trying to understand the vacuum hose route as they're Al frayed and/or misding. From what I can understand the pump feeds a hose which splits towards the vacuum tank firstly then a t piece which leads to brake servo and actors top of engine to turbo solenoid. I cannot work out the feed into the EGR solenoid - can someone help? I'm keeping the EGR at the minute so am not interested in hearing about disabling it yet (although I probably will on due course!

The vac pipes are a bit confusing, but are actually very simple. The brake booster gets priority, so there's direct pipe from the vac pump to the booster. There is a T in this pipe to apply a vacuum to the auxiliary components. This T'd off pipe is T'd again, then goes to front port on the vacuum accumulator, the rear port connects to the turbo control solenoid. The second T applies vacuum to the EGR control solenoid. Sounds complex but is very simple.

Nodge68 said:

The vac pipes are a bit confusing, but are actually very simple. The brake booster gets priority, so there's direct pipe from the vac pump to the booster. There is a T in this pipe to apply a vacuum to the auxiliary components. This T'd off pipe is T'd again, then goes to front port on the vacuum accumulator, the rear port connects to the turbo control solenoid. The second T applies vacuum to the EGR control solenoid. Sounds complex but is very simple.

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Thank you. Through a little trial and error I managed to get sorted and now have brakes that brake and a turbo that turbos!

Hippotastic said:

Thank you. Through a little trial and error I managed to get sorted and now have brakes that brake and a turbo that turbos!

Click to expand...

Hippotastic said:

Thank you. Through a little trial and error I managed to get sorted and now have brakes that brake and a turbo that turbos!

Click to expand...

Since this is a recent post I thought I'd add my recent experience - the vac hose to the EGR solenoid, which on the 2005 Td4 model comes off the tee piece from the vac pump, had completely shredded itself on a coolant pipe under the EGR valve. A mouse could not have done better. Certainly no vacuum would have got through and it must have had some effect on brake vacuum. The valve can't have been working for years (might explain puff of black smoke on cold start?). Of course you can't see the location without removing the inlet manifold (which is not difficult). On my Td4 the turbo vac pipe comes off the side of a limiter or non-return valve (I think) on the plastic vac pipe to the brake servo. It goes to one end of the small accumulator (hiding under the heater hoses). The hose off the other end wriggles under the air cleaner and goes to the turbo solenoid (on top of the IRD). This hose was also a bit chafed, on a handy hose clip. I've bodged the hoses for now and have 1m of hose and a cheap vac gauge on order. I'm going to do a bit of strategic re-routing of the new hoses, and rig the vac gauge to see if everything actually works.
N.B. the vacuum hose goes to the end port on the solenoid valve, the mid port goes to the actuator, and the port nearest the wiring goes to a filter. On the EGR solenoid the filter is a little black box on the valve, on the turbo the filter is a paper element job on a hose hanging down the back of the engine - it must be free to suck in fresh air; there's another post on site where someone connected the filter to a convenient small bore pipe nearby. Only the IRD vent, of course.