Thread: Must read for TDCi owners

Thanks Ozy for the pic....



As i don't have the softwear even if it did get the part to fit myself......

So me thinks its off to the garage to get this problem rectified. I just hope that it won't cost a small fortune.....

It shouldn't cost a fortune, (famous last words), as the pump learn takes all of a minute or so, and unlike other jobs, the valve is very easy to get to and replace.

Looking at the pic Ozy is it on the left side of the engine as you look into the engine bay...??

Originally Posted by ozy013

Number 1 is the VCV

Yes it's on the left and you need skinny hands and strangely bent hands and arms to get into it. Or use 3/8" drive socket with a long extension.
AlanH.

Just some info....
FCV, VCV, SCV.... metering unit etc etc...

*is nothing more than a single circuit fuel shut off solenoid.
*Used on all common rail diesel engines I've worked on.
*Bolts to the back of the High pressure fuel pump.
*Actually doesnt require "calibrating", simply requires the duty cycle to be reset.
*Most other engines, dont have a duty cycle reset requirement, simply replace unit and move on.
*Its one of the more common components I replace on both Jeep and Land Rover diesel models, I'm sure other brands are just as prone to failure as well.

the Denso (brand name) ones (used on Toyota, Nissan, Ford etc etc) seem more prone to sticking than the Bosch ones as used on Jeeps (and Mercs, Iveco etc etc).

Regards
Daz

As I posted first up,I should have got you to replace mine earlier as it's totally changed the way it drives,have you got a reply as to the EGR shut off?. Pat

Well I dropped mine at the garage yesterday and the mechanic plugged in the software and got back to me. He said that the computer is asking the fuel pump to chuck in more fuel but the pump aint doing that.

So he thinks it might be the pump but wanted to keep hold of it for further investigation...... so as they say no news is good news.....lol lol

Watch this space.....

It doesn't take much to upset them. I have always purchased diesel from flashy major brands. But mine hunted at idle for sometime, and would also do it at low speeds but never affected noticeable performance. Eventually it stopped one day, and then another but restarted first crank after the event. $700 for a VCV and a injector re learn and it idles and runs fine again now.
I now use Fuel Doctor in every tank. Have bought a water alarm for the standard stanadyne filter but haven't fitted it yet, and change the fuel filter with every 10K oil service. All a PITA but cheaper than the inconvenience of it not going.