C

chrisarvor

Member
Hi
Dont slag me too much
Its been -10 here and the othger day my 2002 TD5 would start.
I took the cover off the engine today as its a bit warmer out there but i couldnt see the glow plugs.

Are they easy to get at??

Is there a link somewhere that shows how to change them.
Any help guys

thanks an merry xmas
 
but dont replace them unless you realy need to as the ends of them can snap off in the head meaning you could have to take the head of to get it out
 
Unless you live within the Artic circle the glow plugs are only helping with cold running emissions.If you are in the UK etc, and suffering poor cold starting there is something else wrong.Low fuel pressure would be a good place to start.
 
Glow plugs are there to assist a cold start, no diesels like freezing cold chambers.

Faulty glow plugs make a big difference to starting a diesel in cold weather, where you live has nothing to do with it, yes they assist emissions when the engine is cold, but its the starting of the compression / explosion that they significantly help.
 
The point I was making - obviously badly,is that a TD5 will happily start without glow plugs as its a direct injection engine luckily given a decent start quantity by the ecu.Unlike say an EDC injected D1 300TDI auto,which needs its glows on a cold morning.
 
eightinavee said:
Unless you live within the Artic circle the glow plugs are only helping with cold running emissions.If you are in the UK etc, and suffering poor cold starting there is something else wrong.Low fuel pressure would be a good place to start.
Click to expand...

I agree with this, unlikely to be glow plugs, seen loads of fuel pumps give this problem, especially on 2002MY
 
well thanks for replies but i must say i have sold cars for twenty odd years and if the glow plugs dont work, they wont start !!! as i have retired and this is my first TD5 and it is -10 last week or more i was asking for help.

But if you beleive that the car does not need glow plugs you should re-design the layout and sell it cos boy you will be rich :):)
 
chrisarvor said:
well thanks for replies but i must say i have sold cars for twenty odd years and if the glow plugs dont work, they wont start !!! as i have retired and this is my first TD5 and it is -10 last week or more i was asking for help.

But if you beleive that the car does not need glow plugs you should re-design the layout and sell it cos boy you will be rich :):)
Click to expand...

A diesel is compression ignition. It works by compressing the fuel to a point where it causes the fuel/air mixture to explode. The glow plugs are there to assist in this cycle not to create the cycle. Most td5s and Tdi's will start off the key without waiting for the glowplugs to get hot. Therefore it can be safely assumed that on a modern Direct injection engine most can run without the use of glowplugs.
 
I offered help,check the fuel pressure at the regulator,it should be a constant 4bar all the time the pump is running.And as I said before,it should fire up even if the glow plugs are not working.I dont wish to be rude,esp during the festive season - but all the car salesmen I've dealt with in the last 26 years of fixing vehicles have struggled to do more than jump lead dead cars,however their knowledge of things like APR's and CCJ's is very good.
 
eightinavee said:
- but all the car salesmen I've dealt with in the last 26 years of fixing vehicles have struggled to do more than jump lead dead cars,however their knowledge of things like APR's and CCJ's is very good.
Click to expand...


yep that's been my experience of em anorl Oh that and been expert con men and liars.
 
eightinavee said:
Wot fu--ing planet do you live on ?
Click to expand...
In a galaxy far far away..... :alien:

Too much Christmas Champagne.
Covered now in embarassment.
Of course it's direct injection.
Free trip to my home planet now on offer (when I fix my torque converter).
 
Last edited:
if the glow plugs only helped emissions when running cold and not cold starting then there would be no point in the timer for glow plugs when you turn the key. Therefore Land Rover think they do help cold starting.
Whilst it is true that you only need fuel+compression to fire a diesel engine that ignition happens more readily at higher temperatures so glow plugs increase the temperature where it matters.

cheers
david g
 
david g said:
if the glow plugs only helped emissions when running cold and not cold starting then there would be no point in the timer for glow plugs when you turn the key. Therefore Land Rover think they do help cold starting.
Whilst it is true that you only need fuel+compression to fire a diesel engine that ignition happens more readily at higher temperatures so glow plugs increase the temperature where it matters.

cheers
david g
Click to expand...

No one said they didn't help. Just that they aren't essential
 
david g said:
agreed - but if all else is not well they may make the difference between starting or not

cheers
david g
Click to expand...
FFS how clear does it have to be,if it needs the help of the glow plugs then something else is wrong - which is exactly what he should be looking at fixing.
 
david g said:
if the glow plugs only helped emissions when running cold and not cold starting then there would be no point in the timer for glow plugs when you turn the key.

cheers
david g
Click to expand...
(Trying not to make a fool of self again:doh:)
My understanding is that the glo-plugs on the TD5 are not on a timer - the fact that the light goes out is just a guide for starting. The plugs are special heavy duty ones and go on working for longer.
That's what I read on here somewhere anyway. At what point they would switch themselves off I don't know.
 
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