Pajero Owners Club of South Africa

Hi. Im new to this group. Im a mechanic and auto electrician
and know most cars. I have a 3.2 diesel pajero 2006 which had overturned and been scrapped. i bought it for farm use only and built it into a home made body. Has worked fine for years. Recently it cut out whilst driving. I have a up to date kts540 Bosch diagnostic equipment and it only tells me that the TIMING CONTROL UNIT IS FAULTY.,, Is this the injector pump itself??
Checked all fuses etc.. And if it is the pump, can something be replaced or tested, or do i have to replace the whole unit.. Is this common to go on this 40m41 engine or is their something small to do to have it running again. If i crank it up it sounds randomly that it wants to start up.

Please can someone help on this problem who has experienced the same fault
Thankyou

Unfortunately it sounds like the pump is stuffed. It 'might' be the speed sensors on the pump but does not sound like it. Not many diesel pump shops can work on this pump which makes it a bugger to fix. There has been a number of pump 'timing control unit' failures of late reported on here. Alan Black in Springs and Randburg Diesel seems to be the go to guys on these pumps but even they struggle sometimes it seems.

Good luck and please keep us updated.

CATS

CATS wrote:Unfortunately it sounds like the pump is stuffed. It 'might' be the speed sensors on the pump but does not sound like it. Not many diesel pump shops can work on this pump which makes it a bugger to fix. There has been a number of pump 'timing control unit' failures of late reported on here. Alan Black in Springs and Randburg Diesel seems to be the go to guys on these pumps but even they struggle sometimes it seems.

Good luck and please keep us updated.

CATS

hi thanks for the reply. can you perhaps say or tell me how do i know if it is the speed sensors. ive striped around the pump and see two sensors in front of the pump. 1 on top and on the side. how do i test them and would this have caused the engine to cut out in driving?

I believe that you might be able to swap them around but to be honnest I am not sure. I will try and find the posts where I have stumbled onto this in the past.

CATS

@mackyg,

Have you downloaded the workshop manual from this site (see menu Resources|Downloads|Manuals|Workshop Manuals)?

In chapter 13C pages 13C-13 and 13C-14 it tells you what voltages you should measure at the speed sensor connectors on the injector pump and which connectors to check.

See extracted pages here:
page 303 page 304 page 305 Link to 4m41 engine manual here -(see injector pump service on page 303-305.)

https://www.pajeroclub.co.za/resources/ ... ngine-4m41

does it cut out when you drive over 3000 refs or just any time mine does the same the Pajero scrapyard martin in pretoria said might be a dent in the tank I've not checked yet please let me know what you do and i will keep in touch 0732555740

All the sensors seem fine. I removed the injector pump and had it on the test bench. Output pressure to low. Pump needs replacement kit. Its not worth it. they talking 30k.. time to decide and sell it maybe. thanks to all who helped. Much appreciated.

From Entabeni with 2006 Gen3 Pajero 3.2 DiD LWB GLS Auto.

My Pajero had the same symptoms as yours. The problem turned out to be a dented fuel tank which blocked off fuel access into the fuel pipe running from the fuel tank to the filter. I have described my investigations and the solution to the problem in posts over the last week or two with some photos.

It is easy to test for this. To check for fuel supply pipe blockage, I tried to blow and suck into the 12mm fuel pipe at the filter but found it to be completely blocked. Had it been sediment or other dirt on the seive on the pipe's input, then blowing would have cleared it temporarily. If blowing doesn't help, it suggests a dented tank as the cause. I hope this helps you.

Entabeni.