norb:
I think hemeans older stuff was more reliable as the modern trucks cant handle it
But it wasn’t though. I remember breaking down at Southwaite services in a new Scania 93 P cab 8 legger that developed a gearbox fault at just 6,000 miles. I remember getting an Iveco with 10,000 on the clock and the clutch let go.
I remember driving endless trucks with 300-400,000km on which were absolutely knackered. Sure the engines were OK although many drank oil and you couldn’t see for the first 10 minutes after starting up on a cold winter morning but various in cab stuff was shafted, there were endless knocks on bumps from various worn out bushes, pins, cab mounts and cab rust was a real problem.
To be fair most of that isn’t the type of expensive unreliable electronic control and emissions stuff that will stop a modern wagon in its tracks before it’s even out of warranty.Let alone the economic write off situation it can produce when it is.It would be fair to say that given the right engine and driveline choice ( not synchro Scania ) most of the older wagons were no less reliable and if/when they did break were ( much ) easier and cheaper to fix and I’m basing that on driving things that were at least almost 10 years old to sometimes 20-30+.The fact is the amount of technology in most modern trucks really makes them a liability to run outside their warranty period and/or without maintenance cover in which someone else picks up the inevitable big bill when it all goes wrong.
On that note in this case,assuming the smoke is an over fuelling issue,which only seems to occur under load,then sorting out the effects of that on the exhaust/emissions system is obviously just part of that being a symptom not the cause.
As they say…every little helps…but it was put into a garage to check the symptoms, and after a road test it was verified ( their words ) that the cause was the exhaust system…i believe that if it was the turbo…they emit white smoke…and the filters were changed recently…but thanks for the info…it is greatly appreciated…what we are trying to do is find out if its worth spending £8500 or maybe a mechanic has experienced the same problem…apparently the EGR is a common fault on a MAN.
norb:
I think hemeans older stuff was more reliable as the modern trucks cant handle it
But it wasn’t though. I remember breaking down at Southwaite services in a new Scania 93 P cab 8 legger that developed a gearbox fault at just 6,000 miles. I remember getting an Iveco with 10,000 on the clock and the clutch let go.
I remember driving endless trucks with 300-400,000km on which were absolutely knackered. Sure the engines were OK although many drank oil and you couldn’t see for the first 10 minutes after starting up on a cold winter morning but various in cab stuff was shafted, there were endless knocks on bumps from various worn out bushes, pins, cab mounts and cab rust was a real problem.
Ah the pride of Britain, especially Scania and Iveco…oh er hang on…
Juddian:
Ah the pride of Britain, especially Scania and Iveco…oh er hang on…
To be fair a 112 or 142 with a 13 speed Fuller in it would probably have been bullet proof but still wouldn’t have been ‘British’ either.
Well i suppose if you took a 2 year old Iveco, so past its best then, and swapped the cab over onto any of the proprietary engined and gearboxed ERF/Sed Ack/Scammell/Foden chassis, you’d get a rattley but otherwise mechanically good Iveco too…
truckyboy:
I had a problem fixed recently with my truck, was the egr unit in my MAN anyway collected it, went of to re-load, and then smoke started belching from the exhaust, thick black smoke, so bad you couldnt see the carriageway behind…anyway managed to park , revved the guts out of it…no smoke…pulled onto the carriageway…black smoke…so eventually it went to the garage, man thurrock…they diagnosed a faulty exhaust…after a road test with a loaded trailer…now here is the crunch, they phoned yesterday to give me the news…when i asked how much…they said £8500…i said can you repeat that please…yes but i must tell you no one has the job done after we tell them the price…it is EIGHT THOUSAND, FIVE HUNDRED POUNDS…WHAT !!..i can buy another truck for that…well i messaged the boss and he hasnt woken from his coma yet…and maybe he will let me know what he intends to do…do you guys think this is excessive, or is this the going rate.Personally i think its taking the ■■■■ cos we`re on foreign plates.
if anyone know where its a lot cheaper…its a MAN TGX 26/400 euro 5…thanks.
Wow.
Was the egr problem expensive .?
A friends man is using about a gallon of water a week ,he’s also thinking egr and no leaks anywhere with coolant low warnings regularly.
truckyboy:
i believe that if it was the turbo…they emit white smoke…
I didn’t say the turbo, I said the turbo circuit, IE the hoses for example from the turbo to the intercooler, if they have a hole in them then you will have oddles of black smoke under load.
If repeat if this problem is a result of the EGR valve leaking then you may be in a reasonable position with MAN to claim for a considerable concessionary contribution or even more from the manufacturer. It will depend on the history of the coolant use issue. If all investigations were carried out by a MAN dealer and you at no point went against their advice by either not having work carried out, or by continuing to use the vehicle when warned not to do so, then go after them with a vengeance. MAN have designed the vehicle with a system incorporated which may potentially have led to the destruction of another system, with that result being foreseeable.
Place I used to work at had a problem with a TGA drinking coolant, it turned out to be the EGR heat exchanger - basically a pipe within a pipe. MAN wanted £3k just for the part, with us fitting it ourselves! This for a 2003 truck. Stupid thing us this leak had been going on for a long time, and had already caused one engine replacement, done under MAN’s R&M, but they couldn’t find the fault…
EGR is a flawed system and it’s stuff like this why MANS are dirt cheap to buy.
There ok if you get a new one and replace it every 3 years.
I’d look at seeing if you can somehow fit a normal exhaust system.
If it’s belching black smoke then that is unburned diesel, that could be due to the EGR system throwing too much exhaust gas back into the engine and depriving it of the fresh air it needs for the diesel to burn correctly.
A DPF can also cause black smoke, but only in the systems that use a 7th injector to do the regeneration as diesel is fired into the DPF itself, if that is playing up it could be streaming diesel into the DPF, which is now an integral part of the exhaust system and if that is the case then it will be blocked by soot and ash and will need replacing.
In either case I would also drop the oil before using the truck, all the back pressure created from a blocked DPF will mean that a lot of exhaust gas has been forced past the rings into the crankcase and that exhaust gas is full of soot which will act like a grinding paste and eat into the big ends and mains.
