Skibzee · Feb 17, 2019

I have had my 2003 TD4 FreeLander for around 6 months and ever since owning it, its been slow up hills, rarely gets much past 70MPH and turbo sometimes feels like its not working at all - sometimes on acceleration it's great. So, after reading through the threads i assumed it must be the solenoid valve. I got one from the scrapyard and went to change it, that's when i noticed that i didn't have one and the 3 pipes had been joined via a 'T' piece, the 2 wired connector had also been cut off.
So i soldered a new connector on and then noticed that there was nowhere to bolt the solenoid valve to, so zip-tyed it for now - took for a drive an problem not solved.
However the other thing i notice, is that the 3 solenoid valve pipes didn't connect the same way as the 2 i has seen at the scrappy. Pipe 3 goes to somewhere at the top right of the engine, pipe one to the actuator, but pipe 2 goes straight to a port directly on the turbo - the scrapyard ones didn't have this.
Has the previous owner fitted an incorrect turbo, hence why they cut off the solenoid valve?
Could i fix it with a boost tap and turn the pressure right down?
Do i need another turbo?
Any ideas, as need help, but the car just isn't worth spending money on a main dealer?

Thanks

Nodge68 · Feb 17, 2019

This is how the boost control solenoid is piped.

Screenshot_20190129-135852_Samsung Internet.jpg

In the picture, pipe 9 is much longer than shown, as it goes right over the top of the engine, before it joins the solenoid valve.

Hope this help.

Skibzee · Feb 18, 2019

My pipe 12, definitely goes onto a small port directly on the turbo and not onto item 6. What is 6? I definitely think the previous owner bodged this together.

hd3 · Feb 18, 2019

What is 6?

be the vacuum reservoir

~~~~~~~~~~~~~~~~~~~~~~~~~~~

Skibzee · Feb 18, 2019

Is that bolted right near the turbo, so I can check I have one. Presume if I have, I block the port on the turbo (must be the wrong turbo on mine) and route that pipe into the reservoir.

Nodge68 · Feb 18, 2019

Skibzee said:
My pipe 12, definitely goes onto a small port directly on the turbo and not onto item 6.

If it's not piped as shown, then it's piped wrong.

Skibzee said:
What is 6? I definitely think the previous owner bodged this together.

That's the turbo vacuum accumulator. It's job is to maintain the vacuum, under sustained boost conditions.

Skibzee said:
Is that bolted right near the turbo, so I can check I have one.

No. It's bolted to the engine on the RHS, close to where the heater pipes enter the bulkhead.

Skibzee · Feb 18, 2019

Thanks, I’ll look for it tonight.
If there and I pipe to it, I presume I can just block up the port into the turbo?

Nodge68 · Feb 18, 2019

Skibzee said:
Thanks, I’ll look for it tonight.
If there and I pipe to it, I presume I can just block up the port into the turbo?

There shouldn't be anything to block up. There's only 1 vacuum pipe at the turbo. So they just need piping as per that picture.

Skibzee · Feb 18, 2019

That’s why I think they have put an incorrect turbo on. If you look at the picture, mine does have the two holes for bolts, all it has is a port (about the size of the top one on the turbo solenoid). It’s definitely a port into the turbo. My turbo isn’t the same one as in the picture.

Nodge68 · Feb 18, 2019

Skibzee said:
That’s why I think they have put an incorrect turbo on

Can you post some pictures of what you have fitted to your engine.

Skibzee · Feb 18, 2019

I’ll do it tomorrow, working late tonight

Skibzee · Feb 19, 2019

Ok, have photos now.
First photo, is the original way it was piped, as when i bought it. The 3 pipes are joined by a T-Piece. I have cut them already.
Second photo is of what i think is my turbo vacuum accumulator, which is at the top right of my engine
The third photo is after i have put a solenoid on. There are no brackets on the turbo, so it's just zip-tied for now.

I know it's incorrectly piped, as i have (Please not my solenoid is fitted upside down)
The top port piped to the actuator.
The middle port piped to the port directly on the turbo
The bottom pipe to the accumulator, which is at the top right of the engine.

I need to change it to (as per the diagram you sent):
Top port piped to Accumulator
The middle port to the actuator
The bottom port needs to be piped to 13/14 on the diagram, but what are they?
This also still leaves me with a port directly on the turbo?

Nodge68 · Feb 20, 2019

Skibzee said:
The bottom port needs to be piped to 13/14 on the diagram, but what are they?

Those are the vent pipe and filter on the end of the vent pipe.

Skibzee said:
This also still leaves me with a port directly on the turbo?

That shouldn't be there. That is where the waste gate pressure is sensed. The correct Freelander turbo doesn't have a mechanical waste gate. It uses electronic control via the vacuum circuit to swing the vanes around.

So in conclusion. You have the incorrect turbo fitted.

Skibzee · Feb 20, 2019

So off to the scrappy then. I will get the vent pipe and see where it goes to.
Do you think it’s just the ‘snail’ I can get away with, as in will the turbo just unbolt off, or will I need the rest?

Nodge68 · Feb 20, 2019

You'll need the complete turbo as an assembly. It comes with the boost control solenoid fixed to a bracket, mounted on the side of it.

Skibzee · Feb 21, 2019

Thanks

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