Hello guys I replaced my SAI pump (2003 Disco 2) and now might have to do it again. I think the pump is getting a possible backfeed of exhaust. What specifically goes wrong to cause this condition? What kills these pumps?

 

Dirty air from dirty air filter and water.
Do you have any fault codes, if so what are they? If the pump has failed, what it it doing, was it bought from a dealer, if so you have a 1 year warranty on it.

 

Hi Mike thanks for always replying to my threads.
New pump new filter no car washes no rain no water.

I do not want to kill yet another pump specifically what causes exhaust to back feed towards pump? I have a mighty vac hand pump how do i test egr valves and solenoids???

I have bought new pump vac lines solenoids and valves from AB Rover parts but I do not want to keep throwing new parts at the situation, only to have them burn up. Is it the **** poor routing of vac lines or service life of egr valve, egr solenoid or what?

I like to work on my 1969 Mercedes Benz 280SL whenever I can my wife's Disco is taking up the whole damn weekend.
I saw a thread in a vw forum that raises a concern about loose rivets on pump. Anyone else want to throw in their two cents?

 

Here is egr valve test...

http://picasaweb.google.com/wrayband...07396097288290

 

I have often referenced a SAI valve as an EGR valve
I am sorry to anyone that may be offended.
Ernie