2003 TD4 wastegate actuator pipes

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scott collin

New Member
Posts
16
Location
Crowborough,East Sussex
Hi All,I've just bought a 2003 TD4 freelander. It had a blown turbo, and the previous owner couldn't afford to have it replaced.I have replaced it with a low mileage one I sourced locally.
Can anyone identify where the 3 pipes go from the solenoid for the actuator. It is an auto model.
The valve has 3 outlets marked
Vac
Out
ATM
Landrover had pulled pipes off everywhere, and I need to be sure I get them right.
Also, there is a pipe coming out of the rear of a plastic type vacuum reservoir that is open ended.This plastic thing I am describing is on the passenger side and is egg shaped,connected into the vac pump.
The car drives lovely, but I don't want to damage it by over boosting etc.
Any help appreciated
Scott
 
Top man! That would be great.
You may find the pipe markings hard to read in place,but if you describe from closest to the plug first, I could also follow that.
One of my pipes is currently not connected to anything, and close by on the back of the engine by the bulkhead is a steel pipe with a 6" piece of rubber hose connected to it with an in line filter. I'm wondering if they should go together?

regards
Scott
 
One of my pipes is currently not connected to anything, and close by on the back of the engine by the bulkhead is a steel pipe with a 6" piece of rubber hose connected to it with an in line filter. I'm wondering if they should go together?

I had exactly this query with mine, and they definitely don't go together. The metal pipe points down with a bit of rubber tube on the end, and the other flexible tube with an inline filter just hangs down too, both venting to atmosphere. Can't remember exactly what they are for other than they are turbo vents, but there is a thread on here for it somewhere.

If I get a chance, and no-one has answered, I take a quick photo at the weekend for you. Td4 and auto is a nice combination, love driving mine.
 
Sounds like I may have them right already then, but definately worth checking!!
I only paid £3500 for the car. Its a 2003 TD4 Serengeti. The intention was to fix it, and sell it making a tidy profit, but once I drove it, I soon advertised and sold the Renault Scenic I had!
The exhaust and the intercooler were contaminated with oil, so it smoked heavily for a couple of hundred miles, but has stopped now.
The only thing I have noticed is it smokes a bit when you put your foot down, noticed in the rear view mirror at night using followers headlights.
Not sure if this is just that I'm not used to owning a diesel, or if it runs a bit rich at boost, hence my concerns of getting the pipes right!
It could even be shifting some oil residue in the intercooler still, as I've only done 1000 miles since putting it on the road.
No smoke at normal driving, but I will be checking all of the boost pipes at the w/end as it is whistling a bit more now than when I first put it on the road.Hence maybe runnin rich through boost loss??
All in all, a lovely car and well worth the money,now owing me £3750 including trailering home etc!

scott
:) :)
 
don'y worry too much about the smoke when you give it some right foot. Mine does it too, but I only noticed as you did when being followed in the dark through the headlights behind.
Oddly enough, and I might imagine this, but it doesn't seem to be so bad with the gear box in sport mode. Had it in sport tonight, feeling a bit lairy, and checked in me mirror when pulling away hard, and hardly any smoke. Put it back to normal and floored it again, and I could see smoke. Give it a go and let me know !
 
Will do.
One other thing I have noticed which is strange.
If I drive home, and there is a long section with some up hill bits etc where I don't need to brake for some time. After a while being under more load (uphill), it starts to have a chattery whistle if that makes sense.
Once I use the brakes a couple of times, it returns to a boost like whistle.
Is this that vacuum filter venting off excess vacuum until the brakes are applied?

scott
 
I've looked at where the pipes go today, and I'm confused.
The pipes on my actuator solenoid are a follows.
The vac one goes to the vac reservoir as I have previously called it.
The out one goes to the wastegate actuator.
The ATM one goes to an in line filter that is open ended.
The other open ended one which has a 6" piece of rubber on the end of a steel pipe facing down at the rear of the engine goes to the boost side of the turbo.
Surely these 2 open ended pipes must join together.That will put boost onto the actuator solenoid, and will allow the boost to supply the actuator and open it accordingly controlling the boost pressure.Otherwise, how will the boost be controlled???
I connected these 2 together tonight and the car pulls better from low revs(boost isn't being dumped to vent), and at full throttle, it pulls better than before, I assume by preventing it from over boosting??
It smokes less at full throttle, and generally feels smoother and as though it is being controlled.
If there is no boost at the actuator, only vacuum and outlet pipes connected, how will the wastegate actuator work?I have previously only owned turbo petrol cars, and actuators have to have boost to operate.
Can anyone confirm that I am right?
If I'm not, how will the actuator work?

Please help,
Scott
 
Have you changed the depression limiting valve yet? A clogged up one will cause the engine to smoke then kill your turbo. Well worth £25 for peace of mind.
 
Sorry for my ignorance, what and where is it?

Just had a look at the old turbo I took off, and it looks as though the actuator may be vacuum operated, cos the actuator rod moves inward rather that normal boost ones moving outward

scott
 
The valve sits on top of the engine by the injectors and vents crankcase pressure.Do a search,its been well covered before.
 
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