Vacuum Source

[marinabrid]

having no luck with this prob at all!

where is everyone. well looked tonight, the turbo acutuator rod is free to move but doesnt. there is no vacuum to the solenoid. cant find where it draws from. anyone know. also tried put the vacuum from the egr valve onto the turbo still no movement of the rod, but does the egr supply pipe always provide a vacuum.

getting a bit desperatenow. the ford pictures show the supply pipe but no one can see where it goes, it goes to somewhere near the brake servo but then totally disapperas the ford chap said it should go into the intercooler pipe but cant even see it. !!!!!!!!

[bigdaddy]

I have looked at my haynes manual for you,,,,,,(wish I good scan the pic for you)

 

 

 

The pipe goes from the wastegate actuator to the Charger pressure control valve,,,,(goes in one end then out the other end) then goes to the air filter box,,,,,,,,,

 

Hope this helps

[bigdaddy]

Try this!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[marinabrid]

thanbks have seen thi pic, on the earlier 90 engine the boost solenoid is a square shape and draws its vacuum from somewhere on the brake servo but where the pipe goes its impossible to see !!!!!!!!! can any other early pre 97 tdi owner confirm thjis, the wifes 98 110 model has the set up like the diagram but not my early model.

[Masked Marauder]

Martin, are you sure? The vacuum pipe for the turbo goes from the solenoid down the turbocharger induction pipe and onto the turbocharger.

 

ELSAWIN only has the one vacuum pipe/solenoid diagram that covers both of the non-PD engines and it is the same as the one above.

 

1. Air cleaner

2. Hose ◆ Black

3. Vacuum reservoir ◆ Fitting location: Behind coolant expansion tank

4. Hose ◆ Black, yellow

5. Retainer

6. Rubber bush

7. Solenoid valve for charge pressure control (N75) ◆ Fitting location: On bulkhead

8. Nut 10 Nm

9. Hose ◆ Black

10. Non-return valve

11. To vacuum supply

12. Pressure unit ◆ For charge pressure control

13. Hose ◆ Black, yellow

14. Turbocharger

[Guest neil_wiles]

I had a similar problem and the cause was just loose ends on the "T" joint, heat and cooling caused the pipe to crisp and no longer seal might be worth a try.

[marinabrid]

here the vacuum set up on mine. its different solenoid no. 5 operates the turbo actuator but from where it draws a vacuum no one knows it seems to be a pip of some kind !!!

[Masked Marauder]

Do you have a vacuum sphere? If not then the vacuum must be from a Tee-piece somewhere, just follow the pipe from the vacuum pump.

[marinabrid]

we presume the vacuum is drawn in from the single pipe that comes from the front of no.5 solenoid. we have traced but just seems to disapaer into the servo area, the thing is ....impossible to follow. what is the fainter drawing uner no 5 the u shaped hose affair, looks like that is where the vacuum is drawn from also there is a sphere in the engine bay. the pipes on that are all ok or is that what supplies the acuater for the turbo ?

[Masked Marauder]

The single pipe should go to the air-intake pipe, the one that is at 90 degrees to the solenoid at the end with the 2 connectors goes to the vacuum source (a tee-piece between the pump and the sphere) and the pipe that comes straight out the side with 2 connectors goes to the turbo.

[marinabrid]

RIGHT GOT THAT I THINK, THE PIPE THAT LEAVES THE AIR FILTER BOX THE MAIN BIG PIPE HAS INDEED 2 OUTLETS ON. MY SMALL PIPE WAS NOT CIONNECTED TP THIS ! I HAVE PUT IT ON, THE OTHER PIPE AMISS NOW IS THE ONE FROM THE PIPE FROM THE INTERCOOLER THE BIG ONE THAT GOES UP THE FRONT OF THE BLOCK WITH THE.THE AIR TEMP SENSOR IS ANOTHER SMALL PIPE WHERE DOES THIS LEAD TO ?

[marinabrid]

HI ALL WHAT A DAY TRYING TO FATHOM THIS VACUUM. FFEW QUESTIONS /

SHOULD THE LINKAGE ON THE TURBO HOUSING THAT IS CONNECTED TO THE ACUATER BE QUITE EASY TO MOVE VIA SUCTION, MINE IS VERY VERY STIFF AND AM WONDERING IF THE SUCTION WE HAVE IS NOT ENOUGH ? THE ACTUAL LINKAGE APPEARS TO BE VERY VERY STIFF AND WONT MOVE EASILY, ANYONE ELSE HHAD A SIEZED WASTEGATE ?

[mumof4]

:P :huh: saying nowt :P

[kawasaki-krazy]

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[marinabrid]

hi can some kind person witha early 96 97 tdi 90 hp only engine have a look at some pipes for me to compare.

the outlet from the air filter box has a pipe from it that goes to the breather cap on the rocker box top and a small pipe. does your small pipe go to the squre solenoid fixed on a rubber mounting next to the egr solenoid. \also the intercooler pipe that goes up across the engine front to the manifold. half way up it is the air temp sensor i think next to the sensor is another small air pipe that goes up and somewhere but where, mine seems to dissapear to a small elbow and then down to the servo area but then cant be seen, wonder if it a vent pipe of some kind. or should this pipe be connected to the outlet from the air box instead of the turbo solenouiid as described earlier. many thanks