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Question

Good day. I have a 2004 Freelander TD4, only done 84000km, that is causing me trouble. Hard starting and turbo-lag was sorted by dealer by de-carbonising the heads, having the injectors remanufactured and reprograming the computer. This was done 300km ago after which Landy was going very well, but now engine is very rough, seems to be running on 3 cylinders. Tried removing injector wires, but only gets worse. Is it possible that injection timing can be out? Dealer is 300km away, so taking it back is a problem. Scared to drive with it spitting and sputtering. Any thing that I can check by myself? No warning lights on dash. Thanks, Neil in Thabazimbi, South Africa

Submitted: 29 days and 10 hours ago.
Category: Car
Value: $24
Status: CLOSED
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Optional Information

Year: 2004
Make: LandRover
Model: Freelander TD4
Engine: 1951 cm3

Posted by jagmaster 28 days and 19 hours ago.

Answer

I suspect that one of the injectors is the problem. When you disconnected the wires, you probably noticed that it got worse. You should be able to pinpoint it down to one cylinder. I suspect you will have to have the dealer look at it again though. You should call them, and see if they will help with the tow bill.

27 days and 11 hours ago.

Reply

Hi Jagmaster. Thanks. i tried disconecting injector wires while idling. Just got worse. Could not pinpoint fault to one injector. That is what is confusing me! Starting still fine though. Taken it to a Bosch Certified Auto Electrician this morning. I pray his computer will pickup the fault and that it is not going to cost too much to have fixed. I will keep you informed when I get feedback from auto electrician.

Posted by jagmaster 27 days and 1 hours ago.

Answer

I bet he'll get you dialed in.

26 days and 8 hours ago.

Reply

Injectors have been removed and sent to Cluas, who remanufactured them, for testing. Seems that injector jets are too big, causing diesel not to atomise properly, or high pressure pump not delivering enough pressure at idle. Errors recorded on EDC relates to injectors only. No error on high pressure pump. At what pressure must the high pressure pump deliver diesel to the common rail? Will only be able to test pump once injectors are returned.

Accepted Answer

At idle, it should be somewhere around 300 BAR. It's a lot of pressure. I hope that helps.

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Expert: jagmaster
Pos. Feedback: 95.7 %
Accepts: 
Answered: 10/27/2009

ASE Certified Technician

10 years Jaguar Master, Land Rover Master, Aston Martin certified

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