TD5power

TD5power

Certified Nutter
morning gents, my td5 100 when started from cold wont rev for the first 15 or so seconds, i have tried holding the pedal and pumping the pedal, still nothing even when it finally revs for another 15 seconds its low on power so much so that it stall when going over a mole hill but after that its fine, pulls like a train but then every now and then when its hot it has the same issue, last night i was driving it for 45 minutes, pulled up at some lights, whent to move off and nothing, just died, also put out a fair amount of white smoke, im guessing its using coolant and so has a chack in the head? would this case the dead revs issue?
 
if you take it for a blast down the motorway, does it overheat, are the coolant hoses solid after the motorway run, and does the coolant expansion cap boil over when opened carefully as its hot,
all above are cracked head/ head gasket symptoms, that is if cracked on the exhaust side
 
Mine does the same thing sometimes and my Dad's Disco done it once or twice.

Kinda thinking it could be a bad earth or connection on the battery as I remember the time the Disco did it, the live terminal on the battery was a little loose too.
Either that or a fuel pressure issue I suppose.
There's definitely no cooling issues with mine anyway and filters are all good and fuel pump is less than 6 months old on both the Defender and Disco


Stays limp for about 10 seconds or so when started even with the foot to the floor and then all of a sudden, jumps and takes off like a scalded cat.
 
DaveM-sport said:
Mine does the same thing sometimes and my Dad's Disco done it once or twice.

Kinda thinking it could be a bad earth or connection on the battery as I remember the time the Disco did it, the live terminal on the battery was a little loose too.
Either that or a fuel pressure issue I suppose.
There's definitely no cooling issues with mine anyway and filters are all good and fuel pump is less than 6 months old on both the Defender and Disco


Stays limp for about 10 seconds or so when started even with the foot to the floor and then all of a sudden, jumps and takes off like a scalded cat.
Click to expand...

that exactly the same as mine
 
DaveM-sport said:
Mine does the same thing sometimes and my Dad's Disco done it once or twice.

Kinda thinking it could be a bad earth or connection on the battery as I remember the time the Disco did it, the live terminal on the battery was a little loose too.
Either that or a fuel pressure issue I suppose.
There's definitely no cooling issues with mine anyway and filters are all good and fuel pump is less than 6 months old on both the Defender and Disco


Stays limp for about 10 seconds or so when started even with the foot to the floor and then all of a sudden, jumps and takes off like a scalded cat.
Click to expand...

Do you mean that for 10 secs after starting it wont rev even in neutral,or is just gutless for 10 secs after starting ?
 
Gutless, won't really rev much over idle even with the foot to the floor and then suddenly it will take off.

Never checked if it revs freel in neutral as I don't really like reving engines hard especially turbo ones after starting them.
The next time it happens, I'll press the clutch and see if it'll rev though. It think its more so just gutless though.
 
DaveM-sport said:
Gutless, won't really rev much over idle even with the foot to the floor and then suddenly it will take off.

Never checked if it revs freel in neutral as I don't really like reving engines hard especially turbo ones after starting them.
The next time it happens, I'll press the clutch and see if it'll rev though. It think its more so just gutless though.
Click to expand...

mine does it reguardless
 
Been away for a week and I checked mine yesterday evening and mine's the same. It is reluctant to rev even when in neutral or clutch disengaged too for the first 10 seconds or so after start up.
 
DaveM-sport said:
Been away for a week and I checked mine yesterday evening and mine's the same. It is reluctant to rev even when in neutral or clutch disengaged too for the first 10 seconds or so after start up.
Click to expand...

just out of interest, what year and mileage is yours? im starting to think it may be a factory setting to protect the engine possibly? but my old man suspects a slightly stretched timing chain
 
'03, 180K miles and heavily tuned and driven but religiously serviced.

It doesn't really bother me as I don't rev it much for the first 5 minutes or so of driving when cold anyway and even when warm, won't drive it hard for a little bit but just curious to know why it does it or obviously if there's something wrong.

Doubt its a timing chain as if it was a stretched chain that had an effect for a few seconds such as until the tensioner tightened up, it would rattle.

My Dad's Disco that does it sometimes is also a '03 and 125K on it but I rebuilt the engine 5K ago after it scored and cracked a liner. His is standard apart from a bigger intercooler, silicone hoses, decat and re-map
 
Last edited:
Mine used to do this.

Then one day it completely packed up on the missus while I was away on a work trip. Trailer to DLS and one fuel pump later, it doesn't do it any more.
 
mines been remapped too so it must be something when they mapped it, some sort of engine protection device
 
joojar said:
Mine used to do this.

Then one day it completely packed up on the missus while I was away on a work trip. Trailer to DLS and one fuel pump later, it doesn't do it any more.
Click to expand...

New VDO fuel pumps in both my Defender and the Discovery that are only about 3 and 6 months old and I think the Discovery did it both before and after the new pump was fitted.

It does feel like its fuel pressure related alright though on start up. I must put a gauge on it and see what pressure it's reading and that'll be another thing ruled out then if its all ok
 
DaveM-sport said:
New VDO fuel pumps in both my Defender and the Discovery that are only about 3 and 6 months old and I think the Discovery did it both before and after the new pump was fitted.

It does feel like its fuel pressure related alright though on start up. I must put a gauge on it and see what pressure it's reading and that'll be another thing ruled out then if its all ok
Click to expand...

already done it on mine, constant 4 bar straight from start up, anything less and it wont start
 
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