egr again

[johnb8840]

Thought I would check my egr pipe today while I was checking oil ect. Found the pipe at the egr end, which had already been cut, or chewed off by a rat , but had not been blanked off. So where do I find the take-off point from the manifold ? I had a good poke around but could find nothing on either side of the engine. Could someone point me in the right direction ?

John B

[dandywarhol]

The EGR actuator/diaphragm is operated by an electrical solenoid very close to the EGR valve - why not just plug up the gnawed pipe?

[johnb8840]

Thanks Dandy,
Am now slightly confused, cos if the egr is electrically operated what does the rubber tube do?

John B

[Veg_Ian]

IIRC the electrically operated solenoid generates vacuum to the diaphragm at the right moment. By blocking the tube the diaphragm stays closed.

[johnb8840]

Thanks Ian,
I had thought that the egr ran off the inlet manifold creating a vacuum so by cutting the tube it would have left one end flailing around sucking fresh air.
Thanks guys.

John B

[dandywarhol]

Thanks Ian,
I had thought that the egr ran off the inlet manifold creating a vacuum so by cutting the tube it would have left one end flailing around sucking fresh air.
Thanks guys.

John B

It would, but via the solenoid..........

[johnb8840]

OK,
End of topic.

Many thanks.

John B