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Median
3rd Jun 2007, 15:20
The EGR valve vacuum pipe is missing from my '97 Disco 300TDi. I have checked and it hasn't just become disconnected and flopping about the engine bay anywhere.

I know the basic principle of EGR, but:
a) What purpose does the vacuum pipe fulfil and to what should it connect?
b) Is the EGR valve functioning without it?

Also, can anyone help out with the part number please?

Cheers

lynalldiscovery
3rd Jun 2007, 18:16
a, egr solenoid should be on the nearside inner wing pipe goes from this to the egr valve

b,no!

pipe i have always used is 3.2mm id evailable from any motor factor

Probably been removed and binned which is a common mod.


Lynall

Median
3rd Jun 2007, 19:11
a, egr solenoid should be on the nearside inner wing pipe goes from this to the egr valve

Thanks Lynall.

Is this the thing sitting next to / underneath the chock with a connection to the air filter housing? If so, should there really be a pipe from there that seems to vanish into the bulkhead behind the washer bottle? There doesn't seem to be any connections missing so I guess it must be flapping about somewhere after all.

Working at the moment so I can't go out and check.

Cheers

large
4th Jun 2007, 17:44
from the 3 are
1. EGR valve
2. Air cleaner (atmospheric pressure)
3. Vacuum pump (probably via a tee piece on the pipe from the pump to brake diaphragm)

hope this helps

Median
4th Jun 2007, 20:24
Thanks large - will check that tomorrow