Reply With QuoteKISS. Look at the turbo to intercooler hose or the hose from the intercooler to inlet manifold.
if it is a stock hose they can delaminate inside and close up under boost.
Regards PhilipA
Master
SubscriberHi all,
It's a 2002 Td5 Auto which is bog standard apart from EGR delete.
Yesterday it started losing power followed by an almighty shudder. I was going uphill in top gear with the TC locked at about 110 kph when it started to lose power to the extent that it could only manage about 70 kph. Normally this hill is doable with the cruise control engaged and is able to maintain (just) 110 kph. Immediately I thought front prop shaft but that's fine as is the rear rubber donut. After a bit of messing around and reading I think the shudder is due to one or more cylinders misfiring. After a bit more reading I figured that there may be a load of oil in the notorious red plug but that's as clean as a whistle.
Today I broke out the nanocom and could see that the injector values, which are normally between -2 and +2, started to go crazy - values of up to 40 on all five injectors when it started losing power. After stopping and restarting the values went back to normal and it appeared normal service resumed until the next hill. So it seems that the issue only becomes apparent in top gear under load at a decent speed.
Injector seals and washers were changed less than 3,000 km's ago so I don't believe it's them. Same with the air bleed valve.
My last assumption is that it could be the injector loom which is about 70,000 km's old.
So, am I on the right track or should I be looking elsewhere.
Cheers,
Mark F...
Vk3KW
2002 D2 Td5 auto - current AKA The Citrus Money Pit
2000 Disco 2 Td5 Manual - dead and gone
197? Range Rover - gone
1973 SWB SIII Diesel, 1968 SWB IIA Petrol, 195? SI Petrol - all gone
Outback Campers Sturt
http://jandmf.com
Swaggie
SubscriberKISS. Look at the turbo to intercooler hose or the hose from the intercooler to inlet manifold.
if it is a stock hose they can delaminate inside and close up under boost.
Regards PhilipA
Super Moderator
Loosing power alludes to having power in the first place. As the enquiry is in reference to a Td5, I think Mark is having a lend.
If you don't like trucks, stop buying stuff.
Master
SubscriberOi... It must have some power. It would need a fair bit to make as much clattering and rattling noise as it does...Originally Posted by V8Ian
Loosing power alludes to having power in the first place. As the enquiry is in reference to a Td5, I think Mark is having a lend.I reckon if I could turn the noise into forward motion it'd rival an F1 car in acceleration...
Cheers,
Mark F...
Vk3KW
2002 D2 Td5 auto - current AKA The Citrus Money Pit
2000 Disco 2 Td5 Manual - dead and gone
197? Range Rover - gone
1973 SWB SIII Diesel, 1968 SWB IIA Petrol, 195? SI Petrol - all gone
Outback Campers Sturt
http://jandmf.com
Master
SubscriberI haven't looked at the hoses yet. It has developed a bit of hissing at the gear change points 1st to 2nd and 2nd to 3rd - approx 2250 rpm. Could that account for the injector values being so high or the horrible shuddering misfire though ? I can understand the power loss. I'll get rid of the current hoses and put my spare original hoses on and see how I go. The previous owner put pretty blue silicone hoses on it.
Cheers,
Mark F...
Vk3KW
2002 D2 Td5 auto - current AKA The Citrus Money Pit
2000 Disco 2 Td5 Manual - dead and gone
197? Range Rover - gone
1973 SWB SIII Diesel, 1968 SWB IIA Petrol, 195? SI Petrol - all gone
Outback Campers Sturt
http://jandmf.com
Swaggie
SubscriberIt could be that the clamp on the turbo or the intercooler is a bit loose and slips off. happened to me with silicon hoses. It is helpful to rough up the inside of a silicon hose with sandpaper to help the clamps to clamp.
Regards PhilipA
ChatterBox
SupporterThe turbo hoses could well have delaminated, they should be checked.
However, if the injector balances are as far out as you say, it's probably injector washers and o rings... again.
There could be some crud at the bottom of an injector hole in the head that got missed.
LordRover
SubscriberI thought the point of silicone hoses was to prevent the delaminating issue. I guess the quality may vary though. Does the nanocom show proper boost?Pretty blue silicone hoses
JayTee
Nullus Anxietus
Cancer is gender blind.
2000 D2 TD5 Auto: Tins
1994 D1 300TDi Manual: Dave
1980 SIII Petrol Tray: Doris
OKApotamus #74
Nanocom, D2 TD5 only.
Super Moderator
Define proper boost.
If you don't like trucks, stop buying stuff.
ChatterBox
SupporterSorry, didn't see that it already had silicone, they shouldn't delaminate.
It COULD be the injector loom, but the usual is injector seals.
Maybe do a purge cycle and see if it's noisy at all, that will give some clues as to what it might be, could even be the fuel pump failing.
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