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43 replies to this topic | 6 praises

#1

Posted 08 May 2012 - 11:05 AM

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Having trouble with Isuzu diesel engine with euro 5 std exhaust emission.
To keep exhaust emission clean, the DPF filters out exhaust. But theis DPF need to regenerate bpwith high temperate to burn off the dirty soot.
Now the regen function cannot cut in. Check engine and regen light activtaed on oinstrument panel.
This is the down side with euro spec diesel unit.
Some uses DPF some uses Ad-blue (ammonia related)
But is there any one with similar experience with diesel engine exhaust DPF filters?
20120508_070937.jpg

#2

Posted 08 May 2012 - 08:54 PM

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Seriously no one encountered problem with DPF filters before or the market for Euro emission compliant diesel vehicle is too small.


#3

Posted 08 May 2012 - 09:00 PM

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Understand you need to run the vehicle harder to clear it.

#4

Posted 08 May 2012 - 09:38 PM

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Having trouble with Isuzu diesel engine with euro 5 std exhaust emission.
To keep exhaust emission clean, the DPF filters out exhaust. But theis DPF need to regenerate bpwith high temperate to burn off the dirty soot.
Now the regen function cannot cut in. Check engine and regen light activtaed on oinstrument panel.
This is the down side with euro spec diesel unit.
Some uses DPF some uses Ad-blue (ammonia related)
But is there any one with similar experience with diesel engine exhaust DPF filters?


The prevailing standard is only Euro 4 for new commercial vehicles. The only major operator of Euro 5 diesel automobiles is SMRT from what i know. I am not sure whether the diesel particulate filter is significantly different between Euro 4 or 5.
1923 - 2015. You will be missed.

#5

Posted 08 May 2012 - 11:30 PM

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Usually the DPF will auto regen and each cycle last abt 15 mins.
Still can drive.
But uf ir needed full regen, have stop driving and let regen cycle take place to burn off the soot in e DPF:

#6

Posted 08 May 2012 - 11:32 PM

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Lets see it will clear within next few days.
Thank you.

Edited by 5936, 08 May 2012 - 11:32 PM.


#7

Posted 08 May 2012 - 11:34 PM

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Usually the DPF will auto regen and each cycle last abt 15 mins.
Still can drive.
But uf ir needed full regen, have stop driving and let regen cycle take place to burn off the soot in e DPF:


Speaking of the ammonia. i believe the vehicle actually carry a small tank of ammonia around right? Could that have been depleted?
1923 - 2015. You will be missed.

#8

Posted 08 May 2012 - 11:45 PM

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This isuzu use DPF filter only

Another Mercedes truck uses Ad-blue ammonia. This one no problem.tank level displayed on dashboard like fuel tank,
But exhaust from vehicles using Ad-blue smelled slightly sourish.

#9

Posted 10 May 2012 - 02:20 AM

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Depending on the configuration of the exhaust system, it may be possible to remove the DPF and clean it. Your local garage should have further information about this service. DPF cleaning is commonly used to resolve DPF clogging problems in Europe and the USA.

#10

Posted 10 May 2012 - 06:45 AM

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is the old school method of using water stuck in exhust still workable for this new gen diesel engine to flush out>?
If anyone can have it, I don't want it.

#11

Posted 10 May 2012 - 07:49 AM

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source of problem is use of low grade diesel, avoid commercial diesel and use service station diesel (except spc)

#12

Posted 10 May 2012 - 08:03 AM

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For Euro 5 diesel vehicles , the exhaust particles are either trap by a filter and at later stage the vehicle on-board computer go into the degerating mode - during this mode the soot particles at the filter are burnt off at very high temp.
One way to simulate/activate the system to go into degerating mode is by driving the vehicle at high speed.
If this method fails, the only choice is to get the degerating done by a stand-alone machine . Very expensive machine, which I doubt the ADs will have them as the volume of Euro 5 vehicle sold per AD is still low.
The other method of reducing the soot particles is to add Ad-blue to the fuel system. This method is most popular and less problematic.
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#13

Posted 10 May 2012 - 08:06 AM

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Yeah, problem with dpf is that they will choke. If it's possible to be removed, flush it with water like this...

http://www.youtube.c...feature=related
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#14

Posted 10 May 2012 - 08:46 AM

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I think only some engine oil support vehicles with PDF. Not all diesel engine oil can be used.

#15

Posted 10 May 2012 - 09:19 AM

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Having trouble with Isuzu diesel engine with euro 5 std exhaust emission.
To keep exhaust emission clean, the DPF filters out exhaust. But theis DPF need to regenerate bpwith high temperate to burn off the dirty soot.
Now the regen function cannot cut in. Check engine and regen light activtaed on oinstrument panel.
This is the down side with euro spec diesel unit.
Some uses DPF some uses Ad-blue (ammonia related)
But is there any one with similar experience with diesel engine exhaust DPF filters?


Euro 4 Isuzu trucks are problematic. Last time my company isuzu truck had the same problem as yours. When to our regular workshop they say need to send it to triangle auto to fix because they do not have the equipment to find out the fault. When we send it to triangle auto, my company had to replace 4 injector which costed up to $1500. My advise would be to sell it off and buy another reliable brand like mitsubishi.

#16

Posted 10 May 2012 - 09:32 AM

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Did your company try to find out what cause the injector to fail. It may be not manufacturer's faulty components, it maybe due to operation or maintence neglect or poor quality fuel. Common rail diesel system is very high pressure system, the injectors are similar in operation like those used in petrol cars. Regular service is much for good operation.
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#17

Posted 10 May 2012 - 10:03 AM

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Euro 4 Isuzu trucks are problematic. Last time my company isuzu truck had the same problem as yours. When to our regular workshop they say need to send it to triangle auto to fix because they do not have the equipment to find out the fault. When we send it to triangle auto, my company had to replace 4 injector which costed up to $1500. My advise would be to sell it off and buy another reliable brand like mitsubishi.

Actually from what I know Mit spare parts for commercial vehicle is more ex dan its Japanese peers.

$1,500 for the injectors are reasonable coz they identified the actual problem and saved your company a lot of time. Depends on how you look at it coz commercial vehicle to the company is the workhorse.
Night King

#18

Posted 10 May 2012 - 04:13 PM

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Just stick to Nissan Cabstar or Toyota Dyna. They do not have this DPF problem. Really a workhorse. My neighbour also have an Isuzu and he said it's problematic.

#19

Posted 10 May 2012 - 07:52 PM

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DPF looked like cat converter wth the honey combed shaped filter elements.
You tubed videos showed use of high pressure water jet cleaner, but I am keeping this as last option, in case high pressure may damage the filter.


#20

Posted 10 May 2012 - 07:54 PM

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Too late already.
RU plate vehicles no COE so stuck with it for many more years to go.


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