TD4 Smokin Smokin Smokin

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deangermouse

deangermouse

Active Member
Posts
255
Location
Newton Stewart, SW Scotland
Help needed, i recently aquired an 03 Td4 which i was gonna strip for parts, on arrival i found that the injectors were goosed (leak test took less than a minute to fill 2 of the bottles) sourced a replacement set of injectors and fitted them. I can now get the engine running but it coughs and farts like my granny in the mornings, it takes 5 minutes before it revs and the smoke is white and plentiful until the engine is warm, it then settles down and drives ok with not a lot of smoke. My dilema is "where do i start" or do i even start at all? I have no service record of the motor (150k) but it seems too nice to break. Any help would be appreciated, cheers
 
deangermouse said:
Help needed, i recently aquired an 03 Td4 which i was gonna strip for parts, on arrival i found that the injectors were goosed (leak test took less than a minute to fill 2 of the bottles) sourced a replacement set of injectors and fitted them. I can now get the engine running but it coughs and farts like my granny in the mornings, it takes 5 minutes before it revs and the smoke is white and plentiful until the engine is warm, it then settles down and drives ok with not a lot of smoke. My dilema is "where do i start" or do i even start at all? I have no service record of the motor (150k) but it seems too nice to break. Any help would be appreciated, cheers
Click to expand...
150k isn't a big deal for a Freelander. Isn't white smoke unburned diesel?
 
its a b**ch to start, chugs n splutters, as it gets warmer you can start to rev it, once its warmed up it seems to run fine, my other td4 has 160k & runs sweet. i am wondering if its the injector pump which is struggling to get up to pressure, i just dont know where to start :(
 
Mine splutters a bit when first started but that's probably the dead glow plug that won't come out.
It's not uncommon for a diesel to produce some steam when the exhaust system is cold and air is cool and moist. Mine does it at this time of year, so does the wife's year old Ford Kuga.
 
deangermouse said:
Its not cold (7 c) when i say smoke, i mean you cant see my house behind the car, mind you if all 4 glow plugs have failed, i will check them tomorrow.
Click to expand...

7°C is cold for the M47R engine. I don't mean too cold, but it is cold enough for the EDC to enter pre-heat and post-heat routines. The engine with still start without working glow plugs. But it won't fire cleanly and so could well produce white unburnt fuel mist at the tailpipe.
Do a resistance check on the glow plugs. They should have a resistance of around 1 Ohm if working correctly.
 
The TD4 EDC will activate pre-heat when it registers a coolant temperature of less than about 12 °C. I does seem to vary a little bit between cars. This makes me think that it's probably adaptive, depending on engine condition.
My own TD4 is 12°C. So below 12° the pre-heat is active. Above 12° there's no pre-heat, but there is still some post-heat active. I believe that post-heat functions progressively less as coolant temperature climbs to 35° C. Above 35° there's no power sent to the glow plugs at all.
 
W
Nodge68 said:
The TD4 EDC will activate pre-heat when it registers a coolant temperature of less than about 12 °C. I does seem to vary a little bit between cars. This makes me think that it's probably adaptive, depending on engine condition.
My own TD4 is 12°C. So below 12° the pre-heat is active. Above 12° there's no pre-heat, but there is still some post-heat active. I believe that post-heat functions progressively less as coolant temperature climbs to 35° C. Above 35° there's no power sent to the glow plugs at all.
Click to expand...
Would a dodgy thermostat slowing the warm up effect it?
 
I did notice that the glow plug light comes on in the morning after that is stays off all day when restarting
Nodge68 said:
The TD4 EDC will activate pre-heat when it registers a coolant temperature of less than about 12 °C. I does seem to vary a little bit between cars. This makes me think that it's probably adaptive, depending on engine condition.
My own TD4 is 12°C. So below 12° the pre-heat is active. Above 12° there's no pre-heat, but there is still some post-heat active. I believe that post-heat functions progressively less as coolant temperature climbs to 35° C. Above 35° there's no power sent to the glow plugs at all.
Click to expand...
 
checked the glow plugs last night, all 4 are goosed! left them soaking in spray, 2 have come out, 1 broken (not sure if it is above or below the thread) and the other is solid. Feels like 1 step forward, 2 steps back. I will fit 2 new glow plugs and see if it improves the smoke issue, if it does then i will perserver with the engine, if not i will probably try and find a replacement. If the glow plug has snapped below the thread i will see if it will "pop out" when driving, if its above the thread i have no idea. Why me lol
 
deangermouse said:
checked the glow plugs last night, all 4 are goosed! left them soaking in spray, 2 have come out, 1 broken (not sure if it is above or below the thread) and the other is solid. Feels like 1 step forward, 2 steps back. I will fit 2 new glow plugs and see if it improves the smoke issue, if it does then i will perserver with the engine, if not i will probably try and find a replacement. If the glow plug has snapped below the thread i will see if it will "pop out" when driving, if its above the thread i have no idea. Why me lol
Click to expand...

It's not just you. It's very common for the glow plugs to seize into the head. I managed to get 3 of mine out, but one refused to budge. Soak them daily for a few days and then try to remove the stuck plug when the head is hot. The broken one may need to be left in place. The engine will start quite happily on two or three working plugs. ;)
 
Nodge68 said:
It's not just you. It's very common for the glow plugs to seize into the head. I managed to get 3 of mine out, but one refused to budge. Soak them daily for a few days and then try to remove the stuck plug when the head is hot. The broken one may need to be left in place. The engine will start quite happily on two or three working plugs. ;)
Click to expand...
My car had dud glow plugs too and was hard to start (turned over for several seconds before firing) when it was really cold but I never had that much white smoke, just a puff for a few seconds before clearing. Is the issue really likely to be just glowplugs if it's creating a smoke screen?
 
Thats my problem, I am trying to eliminate the basics with minimal cost to decide on the landys fate. If it turns out to be a major problem I will probably get a donor engine, the more time I spend on it the more I like it lol. I am hoping its not a major problem as after 10 mins it runs great, much quicker than my 5 door, once I have fitted the glow plugs I will be in a better position to decide on my next step. Fingers crossed for a little bit of good luck
 
Alibro said:
My car had dud glow plugs too and was hard to start (turned over for several seconds before firing) when it was really cold but I never had that much white smoke, just a puff for a few seconds before clearing. Is the issue really likely to be just glowplugs if it's creating a smoke screen?
Click to expand...

I have a suspicion that it could be a duff injector causing the issue.
 
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