Thread: D2 help,camping holiday very soon

Originally Posted by eileen

Hi can anyone offer some advice our D2 TD5 is playing up sudden loss of power and gets hot, the temp indicator does not go in the red but close enough. After five or ten minutes on the side of the road off we go again. The first time this hapened we got it towed to a LR specialist, he changed the thermo and a return hose but could not find anything else wrong with it. After this however the fan always comes even when starting from cold.I took it back to said LR specialist and again said he could not find anything wrong with it.

Several thousand K's later and its happened again. This time we were in the middle of nowhere and after letting it cool drove on, an hour later it happened again, today we drove for 3 hours with no probs.

Next week we are due to go camping in NW WA but am now concerned we may get stuck with kids,gear etc.

I do not mind if we have to get the head gasket done but the mech said it did not need to be, and his advice can be expensive. It does not lose coolant neither is there any black smoke and RAC man tested the coolant with his chemical tester for combustion gases and all ok

what are possible causes of this ? can anyone suggest something, any advice would be most welcome

cheak the easy stuff first,, oil in the harniss can wip up all sorta werd fualts,, id be cheaking both ends first,

search oil in harniss td5

yep x2

Hi Eileen.
It certainly needs looking into before heading north.
The fan running constantly definately means it been hot,the ECU is trying to protect the motor by running it and limiting the engine output.It will continue to run till the fault is cleared in the ECU.
The "sniffer test" used by the RAC man isnt reliable on a diesel,diesels especially modern ones dont produce much carbon monoxide wich the test is looking for.
There are a couple of other ways of testing for a leaky head gasket,which I suspect is your problem.
*Suspend a 500ml coke bottle to collect ANY coolant spat out from the overflow pipe,monitor its collection.
*Run the heater on full heat,does it work???? Have you now lost a heap of coolant???? Often if combustion gasses are leaking into the cooling system they displace coolant by forcing it out of the overflow,but the heater core now contains gasses instead of coolant.Running the heater will move the gasses around the system if they are trapped in there.The oveflow bottle remains full leading one to think no coolant is being lost.
*Get the engine up to full operating temp,preferably including a good workout up a long hill.Pull over and carefully squeeze the top radiator hose.It should have some pressure but if its extemely hard its a sure sign of compustion gasses in there pressurizing the cooling system.
*DOUBLE CHECK that the thermostat is correctly installed!!!!!,It can be fitted incorrectly,there was a post the other week with the incorrect/correct fitting.
Where in Perth are you,somebody with TD5 experience may be able to have a look at it for you to check the above.
GOODLUCK.
Dont take it on holidays as is,I would be very concerned that it will let you down.
Andrew

thanks Andy, I checked the ECU and the red plug was swimming in oil, so changed the injector loom and spent hrs cleaning the main loom. However as you point out the fan still runs constantly I am going to do your tests today as I too have suspicions about the head gasket, thanks to stig for getting back to me so soon, a day later and I would not have been able to get the loom until tuesday

Here is the map of people with Nanocoms willing to help other members.
http://www.aulro.com/afvb/electronic...pment-map.html
Get somebody to see what faults are stored,it will also stop that fan running all the time.
I have a Nanocom and willing to plug it in for you,but Im 160ks from Perth(Williams).
Goodluck
Andrew

Andy, been out for a spin and did the heater test, interestingly it lost more coolant driving it hard for twenty minutes with AC on coolest setting than with heater on full. The heater worked well straight away, the top hose was pretty hard but the expansion bottle seemed to have lees pressure in it, was this because of running the heater ? How do I get in touch with 5teve in Kinross ?

Best way is via PM (private message)
Click on Private Messages under where it says Welcome and your username,top rh side of screen.If you cant work it out I can send you his ph number via PM.
Andrew

Keep your fingers crossed that the oil is upsetting the apple cart.Heater/hose test sounds promising.
Take the ECU out again and remove the sealing grommet on the orange ECU plug.Leave it out for now,keep it in a safe place and replace before doing any wet off-roading.Once the oil is gone put it back.
Leaving it out helps the oil drain easier,it will take some time.
Expect a long list of faults to show,the oil changes values the ECU reads and sends it into confusion.I will add a post here from last week that I believe is oil in the harness generated faults.I had the same issue a few years back,I got the headgasket and oil in the harness at the same time!!!!
Andrew