I'm assuming that your engine is a 130PS PD type diesel, in which case how was the "pump" cleaned? - there isn't one other than the tandem fuel feed pump. Injector trouble on these engines is very unusual and there are not many test fixtures around which will take them.
Assuming it's a PD, there is a quick but not foolproof way of testing the EGR valve - assuming your car has a manual gearbox; the autos are different.
Showing through the engine top cover is the "silver" dome of the EGR actuator with a rubber pipe attached. With the engine off, disconnect this pipe - push it off with a screwdriver, dont try pulling it on an old engine. Now connect a short piece of suitable hose to the stub and suck.
You have to suck quite hard as the spring is strong, but you will be aware of the EGR valve opening as you suck. Hold it open by putting your tongue over the end of the pipe, and check that the vacuum is held. Release the vacuum, and you should hear the valve shut smartly with a soft "click". If you can't hear this, it's probably stuck.
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Hi 659FBE & All
Thanks for the info on the EGR Valve my car is an 02 (2002) TDI 130 Highline Estate Manual. not sure if it's a 130PS PD though ?
My mechanic took the car to a specialist Injector/Pump cleaning firm but not sure how it was done but apparently it was on the machine for about an hour cost £47
Amazingly I located the EGR Diaphram unit as you described and also found a piece of plastic pipe which I managed to fit tightly on the nipple.
Yes ! it responded exactly as you said it would once I had mastered building up a vacuum (6 Sucks) on releasing the vacuum it made a satifying clunk. (Back to the drawing board ?? )
On my way home tonight I called into the mechanic to pay him for my service and announced that I may have found the problem Faulty EGR. He advised me that he had cleaned it and checked it when replacing the Intercooler Hose. He also said the Hissing noise was probably the Dump Valve relieving pressure build up.
I decided to check the symptoms again after leaving his place and confirmed the hessitant acceleration up to 30 mph and on a steep hill climb below 30 mph in traffic a definite flat spot accompanied by a puff of greyish exhaust smoke.
On another hill at above 40mph nice and smooth with no noticable loss of power, I did wind the window down and heard the Loud Airline like Hiss.
I think with all the expertise on this board it's only a matter of time before I find the solution !
Thanks all once again I am very grateful for you help
Dodgy
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Dodgy
You need a new mechanic who isn't ripping you off and laughing at you behind your back.
"Clean pump and injectors" - yeah? How? [There isn't one... this is a PD.]
"The hissing is the dump valve." On a diesel??? With electronic pressure control? Under load? You've got a leak!
Ask around for a clued-up tech; or take it to a diesel specialist. This could be anything from a MAF or MAP fault to a tired injector feed loom.
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Hi Screwloose
Thanks for the info and tip
I doubt whether my mechanic is deliberately ripping me off as I've known him for years and has got me out of a jam a few times but you never know ?
I think maybe he has not come across this before and is struggling for an answer ?, I was thinking of taking it to a VW Dealer but I think I might definitely get ripped Off there
I live on the Wirral but don't really know of any purely Diesel Specialists !
I will do some research if I get a result I'll report back
Cheers once again !
Dodgy
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Dodgy
Have a look on yell.com for diesel places.
There are quite a few switched on garages around; but the vast majority thought that they could just carry on as normal and ignore the onrush of the electronic car and they are now doomed.
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Cheers Srewloose
I'll report back
Dodgy
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"Clean pump and injectors" - yeah? How? [There isn't one... this is a PD.]
Don't some garages offer a fuel system flush/cleaning service, where they connect the fuel feed into an additive filled machine, and run it for a time?
I've probably asked that in a bit of a simplistic way, but I'm not totally sure of the process, and whether it was for petrol or diesel, or both...
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Andy
Yes; a pointless process anyway, but this car doesn't have an injection pump to clean and the injectors are electronically fired so you can't push fluid through them.....
What they were charging for....?
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Hi Screwloose & Co
I have spoken to AW Diesels in Darwin today very nice helpful people but they just build engines
They offered help though and think my problem is a hose leak
Also spoke to another local mechanic who works on modern diesels and he thinks it is a hose leak, he is going to have a look tomorrow
Cheers
Dodgy
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Hi Screwloose and All !
You were bang, on I asked one of our Mechanics at work to give me his opinion of the fault and he said let's put it on a hydraulic Ramp and wee'll have a look.
After undoing the plastic tray under the engine he showed me a Botched Up hose connection between the rubber and metal pipe !
My Mechanic must have snapped the original taking the old hose off I bought the correct VW Hose Clip on the way home 47p including VAT.
Our company mechanic is going to fit it for me in a week's time when I get back from a hort trip.
I think my mechanic has been the problem all along
I can't believe he would string me along knowing that he had botched the hose job in the first place luckily the last cheque I gave him hasn't hit my account yet
I think a call to my bank tomorrow should sort that out
I have used this guy for well over 10 years and treated him almost as a mate, just goes to show you don't know who you can trust.
I will let you know how the car runs once the correct spring clip is fitted
Thanks once again
Dodgy
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The Scorpio site is one of the most useful to appear on here and not just for EGR!
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