3.2 Di-D inlet manifold clogging - Rage against the establis
Posted: Sun Aug 05, 2012 10:47 am
My Pajero Sport
Vehicle has been intermittently hunting for about a year and consumption has always been high. (12.5 L/100km best ever)
only recently did the fault present itself when i could get to dealer at the same time. Also, presence of mind to keep engine running while I called the 'technician'(they don't like being called a mechanic)
Went for a drive to demonstrate.
Kept engine running, he hooked up the computer, no fault codes.
He declares there is nothing the matter, based on that alone.
Asked about a faulty sensor, he says there will be a fault reported for that....
wow! so what this means is we no longer need 'technicians'
Fault disappeared when restarted.
Car goes in for three days.
Get it back with "cleaned EGR valve" on job card.
A week later it surges again.
Take it back again.
Here's how the conversation goes...
Alan - So what do you think the problem is?
Dealer - Probably carbon build up in inlet manifold.
Alan - Okay lets open up and have a look.
Dealer - Ohh , ummm , mitsubishi do not pay for this, we've had other Tritons not getting warranty approval for this fault because of 'poor quality' fuel.
Alan- What's the cause?
Dealer - Are you only using 50ppm diesel?
Alan - Yes, maybe 1 in 10 tanks is 500ppm if i'm far out.
Dealer - Did you use the diesel system cleaner?
Alan - Yes, at 10 000km intervals after someone warned me about this scenario. Note: not by you, my dealer, so thanks for nothing. Dealer - We recommend that every third tank should have cleaner in it.
Alan - Really? at R110 per bottle? Give it to me in writing, or show me a technical specification from Mitsubishi...!
Dealer - We'll get back to you on that.
Alan - There is zero mention of 50ppm fuel only in handbook or other documents.
Dealer - Yes, its there.
Alan - No there is nothing in my book, have a look...
Dealer - oh, maybe it's in the newer books. Anyway, you will have to pay for this and we will submit the claim.
Alan - Okay, I'll pay.
This is what my inlet system looked like 3000km ago (92 000Km)
Dealer - So, as you can see, its all carbon'd up. Fuel is really bad in South Africa. contaminated.
Alan - Wow ! So you must have like 10 or 20 cars a day in here!
Dealer - Not really.
Alan - What does Mitsubishi say?
Dealer - Will not pay due to contaminated fuel.
Alan - That was quick, who came to look?
Dealer - Our technicians (there's that name again)
Alan - So YOU told Mitsubishi it's fuel?
Dealer - Yes
Alan - What is this diagnosis based on?
Dealer - We just know.
Alan - how do I get it to stop?
Dealer - 50 ppm only and use fuel line cleaner.
Alan - This is not right, i want a written, technical explanation from you, my dealer on how this happens.
Dealer - (shrug of shoulders)
Alan - Doubtful that Mitsubishi would have not encountered this issue in testing, and still used the motor.
Dealer - (shrug of shoulders)
Alan - Why are the other models with same motor, and in fact all the Mercedes diesel models not lined up here?
Dealer - We'll appeal to Mitsubishi and refund you if they accept the claim.
Alan - how will they change their minds if they never see the vehicle, and you tell them it's contaminated fuel?
Dealer - we'll do our best. Here's the bill.
Alan - Are you sure that there are o sensors giving incorrect levels or temperature maybe? Maybe its over fuelling, or pressure is wrong?
Dealer - there are no fault codes, our technicians have checked. ( shrugs again)
Dealer - It's two years old now , are you going to trade it in?
End of conversation
So i pay the R2350, and drive to Jhb , East London and back to PE.
Starts surging again......
So, what to do?
Still believe its a faulty sensor or similar that would not show up as a fault code.
5000km on warranty left.
Vehicle has been intermittently hunting for about a year and consumption has always been high. (12.5 L/100km best ever)
only recently did the fault present itself when i could get to dealer at the same time. Also, presence of mind to keep engine running while I called the 'technician'(they don't like being called a mechanic)
Went for a drive to demonstrate.
Kept engine running, he hooked up the computer, no fault codes.
He declares there is nothing the matter, based on that alone.
Asked about a faulty sensor, he says there will be a fault reported for that....
wow! so what this means is we no longer need 'technicians'
Fault disappeared when restarted.
Car goes in for three days.
Get it back with "cleaned EGR valve" on job card.
A week later it surges again.
Take it back again.
Here's how the conversation goes...
Alan - So what do you think the problem is?
Dealer - Probably carbon build up in inlet manifold.
Alan - Okay lets open up and have a look.
Dealer - Ohh , ummm , mitsubishi do not pay for this, we've had other Tritons not getting warranty approval for this fault because of 'poor quality' fuel.
Alan- What's the cause?
Dealer - Are you only using 50ppm diesel?
Alan - Yes, maybe 1 in 10 tanks is 500ppm if i'm far out.
Dealer - Did you use the diesel system cleaner?
Alan - Yes, at 10 000km intervals after someone warned me about this scenario. Note: not by you, my dealer, so thanks for nothing. Dealer - We recommend that every third tank should have cleaner in it.
Alan - Really? at R110 per bottle? Give it to me in writing, or show me a technical specification from Mitsubishi...!
Dealer - We'll get back to you on that.
Alan - There is zero mention of 50ppm fuel only in handbook or other documents.
Dealer - Yes, its there.
Alan - No there is nothing in my book, have a look...
Dealer - oh, maybe it's in the newer books. Anyway, you will have to pay for this and we will submit the claim.
Alan - Okay, I'll pay.
This is what my inlet system looked like 3000km ago (92 000Km)
Dealer - So, as you can see, its all carbon'd up. Fuel is really bad in South Africa. contaminated.
Alan - Wow ! So you must have like 10 or 20 cars a day in here!
Dealer - Not really.
Alan - What does Mitsubishi say?
Dealer - Will not pay due to contaminated fuel.
Alan - That was quick, who came to look?
Dealer - Our technicians (there's that name again)
Alan - So YOU told Mitsubishi it's fuel?
Dealer - Yes
Alan - What is this diagnosis based on?
Dealer - We just know.
Alan - how do I get it to stop?
Dealer - 50 ppm only and use fuel line cleaner.
Alan - This is not right, i want a written, technical explanation from you, my dealer on how this happens.
Dealer - (shrug of shoulders)
Alan - Doubtful that Mitsubishi would have not encountered this issue in testing, and still used the motor.
Dealer - (shrug of shoulders)
Alan - Why are the other models with same motor, and in fact all the Mercedes diesel models not lined up here?
Dealer - We'll appeal to Mitsubishi and refund you if they accept the claim.
Alan - how will they change their minds if they never see the vehicle, and you tell them it's contaminated fuel?
Dealer - we'll do our best. Here's the bill.
Alan - Are you sure that there are o sensors giving incorrect levels or temperature maybe? Maybe its over fuelling, or pressure is wrong?
Dealer - there are no fault codes, our technicians have checked. ( shrugs again)
Dealer - It's two years old now , are you going to trade it in?
End of conversation
So i pay the R2350, and drive to Jhb , East London and back to PE.
Starts surging again......
So, what to do?
Still believe its a faulty sensor or similar that would not show up as a fault code.
5000km on warranty left.