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Vacuum pipe off of EGR, black smoke
#1
The van: Peugeot Partner 1.9d 2005 mk2.


Noticed about February time that a vacuum pipe had come off of the egr valve and the plastic mount where it would push onto was snapped along with it. Noticed ever since that when the van would be going up hill at a struggle at around 2000rpm the engine light would come on until the revs would go up and make a bit of speed it would go off again.

Now in the past 2 months the van seems to stuggle even more at hills and there is a lot of black smoke when going around 3000rpm and upwards. When the engine is cold, when starting, i need to give the van a slight rev or else it will stall and wont start for a few minutes, it would just keep turning. When it does start then the exhaust puts out an awful puff of black smoke and leaves marks on the tarmac/road.

Also, the accelerator seems to be jerky. When i push it down it might take a second to respond and would jerk the van. If you push it down slowly it feels asif it is doing nothing until the pedal goes to a certain point then it bites with full acceleration. Its very hard to explain and really annoying as i travel around 100 miles per day

I glued the nozzle back onto the egr valve and placed the pipe back on yesterday. No difference. Noticed the EGR valve where the air filter pipe mounts onto was black rotten with soot and tried cleaning what i could reach as best as i could..

Anybody able to help me out here? Undecided
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#2
Has your one got a butterfly flap in front of the EGR valve. Mine has and has two vacuum pipes, one for the EGR and one for the flap. The plastic nozzle for the flap on mine has broke off so I had to jam the flap open as no vacuum means flap shut which means the air is being restricted.
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#3
The vacuum pipe looks to operate the plastic lever under the cover circled in red, the pipe connecting onto the bottom of that connects to a part to the right hand side of the engine (pipe course marked in yellow).

When the cover is off of that plastic lever, when i push the lever down, the flap inside closes (is this the butterfly you were talking about?). I think it is at a 8 to 2 angle (if looking at a clock) when left alone though.

Picture is from google, not my engine. I will take a picture of it tomorrow.


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#4
Hi all ,

In a earlier post this is what I said:-    

    "Has your one got a butterfly flap in front of the EGR valve. Mine has and has two vacuum pipes, one for the EGR and one for the flap. The plastic nozzle for the flap on mine has broke off so I had to jam the flap open as no vacuum means flap shut which means the air is being restricted. "

  The text in RED is completely wrong , I apologise for it and any other posts I made regarding this flap as my understanding of the way the Butterfly flap and the EGR valve works was wrong.  It is, when no vacuum present ,  open , (a fail safe way ?).  Blush  Confused

  Sorry for any confusion
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#5
Got it sorted. Pulled off the egr valve mechanism (it screws out then pops)
Cleaned all the inside of it. Noticed there was alot of soot further behind it. Pulled off the vacuum pipes (same as blanking the egr). Reassembled. Test drive then that evening the throttle wasnt jerky anymore but still dead on power anf black smoke.

2 days later and about 200 miles travelled i noticed in my mirror alot of black smoke when doing about 60 on a straight road. Thought the van was on fire so i got out to look after the smoke had stopped. Couldnt find anything wrong.
Travelled about 10 more miles and noticed i was doing 80mph. A speed that i could never reach before. After the black reek had fired out of the arse of it it seems now that there is much more power in the van. There is no more black smokr either.
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