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Broken @ 10K Miles?
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Apparently there was enough to in the transmission to keep it going or something because I was still driving it and when the trans fluid was checked there wasn't any on the dipstick. .
My money is on a bad injector. I'd have had a hard time keeping a straight face if they told me it could be an air filter!
Keep us posted.
Dave
Keep us posted.
Dave
rbattelle
TDR MEMBER
I had an old Bronco II with an A4LD (Ford owners know what a junker that one was!). Anyway, I pulled it out of the garage with only about 3 quarts of fluid in it (it had just been rebuilt, so believe me that sucker had only the 3 quarts I had dumped in). Fluid did not register on the dipstick. When I put it in gear to move it, it took a full 5 seconds from shift to band engagement, because there just wasn't enough fluid.
That's why I find it amazing that you were able to drive around with so little fluid and never notice it.
Well, got the truck back today after its diagnosis... . and the answer, of course..... It is normal... The old wastebasket term for anything the customer says is wrong.
The said they put it on the diagnostic machine ( I asked if they had checked to see that the pressure delivery system was at specs and if they checked to see if it was a bad injector) and they said yes they had.
Furthermore they said that they pulled an 03 with 3000 miles and under load at idle created the same sound.
They said that the reason for the sound was that the MAP on a diesel, unlike gasoline engines, does not compensate for low speed air to fuel mixtures da da da da da.
I said, if we assume that this is the problem, that the diesel will show a knock at idle and especially at idle or low speed under load, then why would it have begun @ 9850 miles, and not been present at mile 1, mile 1000, mile 2000 etc.
They had no logical answer.
So their answer was not based on any symmetry with any kind of intelligent diagnostics.
In other words, it is normal
they all sound like this,
because diesels don't adjust for low idle fuel air mixtures properly,
but
in response to your question,
well then why did we not hear it until 9850, they have no verbal response.
We therefore assume that the unspoken response is the universal,
drivers are stupid, therefore the sound was there always, and they just decided to hear it now... or other blame it on the stupid driver syndrome.
The customer service guy said, we really don't want to tear down the engine, because you want to have it the way cummins put it together, and tearing it down could reduce its reliability...
Which means we couldn't put it together back the way we found it if we tried and we would have to either explain the left over parts or hide them.
Oh, well, as my good friend often said...
Matchless efficiency at every hand.
They do not have a clue, and are unashamed to report that the sound is normal in lieu of a solid reliable informed logical explanation.
I will drive this for another 1k or two and see what happens.
Thank you all for your help.
It feels so much less alone, with your verbal support.
The said they put it on the diagnostic machine ( I asked if they had checked to see that the pressure delivery system was at specs and if they checked to see if it was a bad injector) and they said yes they had.
Furthermore they said that they pulled an 03 with 3000 miles and under load at idle created the same sound.
They said that the reason for the sound was that the MAP on a diesel, unlike gasoline engines, does not compensate for low speed air to fuel mixtures da da da da da.
I said, if we assume that this is the problem, that the diesel will show a knock at idle and especially at idle or low speed under load, then why would it have begun @ 9850 miles, and not been present at mile 1, mile 1000, mile 2000 etc.
They had no logical answer.
So their answer was not based on any symmetry with any kind of intelligent diagnostics.
In other words, it is normal
they all sound like this,
because diesels don't adjust for low idle fuel air mixtures properly,
but
in response to your question,
well then why did we not hear it until 9850, they have no verbal response.
We therefore assume that the unspoken response is the universal,
drivers are stupid, therefore the sound was there always, and they just decided to hear it now... or other blame it on the stupid driver syndrome.
The customer service guy said, we really don't want to tear down the engine, because you want to have it the way cummins put it together, and tearing it down could reduce its reliability...
Which means we couldn't put it together back the way we found it if we tried and we would have to either explain the left over parts or hide them.
Oh, well, as my good friend often said...
Matchless efficiency at every hand.
They do not have a clue, and are unashamed to report that the sound is normal in lieu of a solid reliable informed logical explanation.
I will drive this for another 1k or two and see what happens.
Thank you all for your help.
It feels so much less alone, with your verbal support.
And I was just starting to think it might be the air filter
. I assume that you are going to take it somewhere else next time. You should post the name of the dealer so we can stay away. Good luck somewhere else
.
Dean
. I assume that you are going to take it somewhere else next time. You should post the name of the dealer so we can stay away. Good luck somewhere else . Dean
Well, got the truck back today after its diagnosis... . and the answer, of course..... It is normal... The old wastebasket term for anything the customer says is wrong.
The said they put it on the diagnostic machine ( I asked if they had checked to see that the pressure delivery system was at specs and if they checked to see if it was a bad injector) and they said yes they had.
Furthermore they said that they pulled an 03 with 3000 miles and under load at idle created the same sound.
They said that the reason for the sound was that the MAP on a diesel, unlike gasoline engines, does not compensate for low speed air to fuel mixtures da da da da da.
I said, if we assume that this is the problem, that the diesel will show a knock at idle and especially at idle or low speed under load, then why would it have begun @ 9850 miles, and not been present at mile 1, mile 1000, mile 2000 etc.
They had no logical answer.
So their answer was not based on any symmetry with any kind of intelligent diagnostics.
In other words, it is normal
they all sound like this,
because diesels don't adjust for low idle fuel air mixtures properly,
but
in response to your question,
well then why did we not hear it until 9850, they have no verbal response.
We therefore assume that the unspoken response is the universal,
drivers are stupid, therefore the sound was there always, and they just decided to hear it now... or other blame it on the stupid driver syndrome.
The customer service guy said, we really don't want to tear down the engine, because you want to have it the way cummins put it together, and tearing it down could reduce its reliability...
Which means we couldn't put it together back the way we found it if we tried and we would have to either explain the left over parts or hide them.
Oh, well, as my good friend often said...
Matchless efficiency at every hand.
They do not have a clue, and are unashamed to report that the sound is normal in lieu of a solid reliable informed logical explanation.
I will drive this for another 1k or two and see what happens.
Thank you all for your help.
It feels so much less alone, with your verbal support.
The said they put it on the diagnostic machine ( I asked if they had checked to see that the pressure delivery system was at specs and if they checked to see if it was a bad injector) and they said yes they had.
Furthermore they said that they pulled an 03 with 3000 miles and under load at idle created the same sound.
They said that the reason for the sound was that the MAP on a diesel, unlike gasoline engines, does not compensate for low speed air to fuel mixtures da da da da da.
I said, if we assume that this is the problem, that the diesel will show a knock at idle and especially at idle or low speed under load, then why would it have begun @ 9850 miles, and not been present at mile 1, mile 1000, mile 2000 etc.
They had no logical answer.
So their answer was not based on any symmetry with any kind of intelligent diagnostics.
In other words, it is normal
they all sound like this,
because diesels don't adjust for low idle fuel air mixtures properly,
but
in response to your question,
well then why did we not hear it until 9850, they have no verbal response.
We therefore assume that the unspoken response is the universal,
drivers are stupid, therefore the sound was there always, and they just decided to hear it now... or other blame it on the stupid driver syndrome.
The customer service guy said, we really don't want to tear down the engine, because you want to have it the way cummins put it together, and tearing it down could reduce its reliability...
Which means we couldn't put it together back the way we found it if we tried and we would have to either explain the left over parts or hide them.
Oh, well, as my good friend often said...
Matchless efficiency at every hand.
They do not have a clue, and are unashamed to report that the sound is normal in lieu of a solid reliable informed logical explanation.
I will drive this for another 1k or two and see what happens.
Thank you all for your help.
It feels so much less alone, with your verbal support.
Vaughn MacKenzie
TDR MEMBER
Pssst
Images. . .
Let your little mechanic buddy in on a little secret . . .
• “Fuel Mixture”
• “Air Fuel Ratio”
• “Lean Knock”
• “MAP Sensor”
<font size=3>DOES NOT APPLY TO DIESELS IN ANY WAY WHATSOEVER<size>
Vaughn
Images. . .
Let your little mechanic buddy in on a little secret . . .
• “Fuel Mixture”
• “Air Fuel Ratio”
• “Lean Knock”
• “MAP Sensor”
<font size=3>DOES NOT APPLY TO DIESELS IN ANY WAY WHATSOEVER<size>
Vaughn
Last edited:
rbattelle
TDR MEMBER
Re: Pssst
Vaughn,
I'm afraid I must very respectfully disagree with you. "Fuel mixture" and "Air fuel ratio" are the same thing, and they most definetly apply to diesels. "Lean knock", ok I'll give you that one... I don't think diesels do this. "MAP sensor", I think our trucks do have a MAP sensor on them...
But I will concede that in the case of this specific problem, none of these terms might actually be the cause of the knock. My personal opinion is that it has something to do with an injector acting up.
Like I said earlier, I have, to varying degrees, experienced what I believe to be the same knock. It has always gone away, eventually. I recommend just waiting it out and seeing if it does clear up eventually. And if it doesn't, it's DCs problem until 100k miles.
Vaughn,
I'm afraid I must very respectfully disagree with you. "Fuel mixture" and "Air fuel ratio" are the same thing, and they most definetly apply to diesels. "Lean knock", ok I'll give you that one... I don't think diesels do this. "MAP sensor", I think our trucks do have a MAP sensor on them...
But I will concede that in the case of this specific problem, none of these terms might actually be the cause of the knock. My personal opinion is that it has something to do with an injector acting up.
Like I said earlier, I have, to varying degrees, experienced what I believe to be the same knock. It has always gone away, eventually. I recommend just waiting it out and seeing if it does clear up eventually. And if it doesn't, it's DCs problem until 100k miles.
Vaughn MacKenzie
TDR MEMBER
rbattelle I agree with ya, but the mechanic has gasser terminology stuck on the brain when "diagnosing" Image's truck. That's what I was after. A "lean" condition on a diesel means it runs slower, nothing more, it does't cause knocks or pings like a gasser. I know Air Fuel Ratil/Mix are the same thing, I was being sarcastic. 
Air Fuel ratio is an entity no one needs be concerned with on a diesel. At idle they're between 80:1 and 100:1, at WOT it's more like 10 or 20:1.
Yes our trucks have a Map sensor, my goof, I meant MAF (mass airflow) sensor which our trucks do not have.
Vaughn
Air Fuel ratio is an entity no one needs be concerned with on a diesel. At idle they're between 80:1 and 100:1, at WOT it's more like 10 or 20:1. Yes our trucks have a Map sensor, my goof, I meant MAF (mass airflow) sensor which our trucks do not have.
Vaughn
Better not tell the DC that you have after market wiper blades on the truck,
might void the warranty on the kanutter valve in the muffler bearings, because the gasket oil leaked from the thermo-shaft.
Amazing on how much we CTD lovers know about our trucks.
might void the warranty on the kanutter valve in the muffler bearings, because the gasket oil leaked from the thermo-shaft.
Amazing on how much we CTD lovers know about our trucks.
I always heard the "fake" part was the precogitator.
I had a broken J jet on my HO 02 that caused a scored #6 cylinder. It had a sight tapping that developed into a knock. Have your mechanic loosen the injectors 1 by 1 untell he finds the knocker.
I have the same problem with mine and I am scheduled to take it in on Monday to get it looked at. Mine is an '03 HO AUTO. I have spoken to 3 dealers about this and 1 dealer mechanic told me that he has only seen this on 1 other truck and they replaced the engine. It was stated that something is wrong with the cylinder wall on the 6th piston that causes this. Also noticing that when I am at idle and I press the excelerator and then let off the idle returns to normal, but then a fraction of a second later the idle drops to about 400rpms and almost stalls the engine and then shoots up to 1000 regain fuel. I have 12,000 miles on it.
I will let you all know what the out come is. I will try and get with the mechanic and get more detail info out of him on this issue
Russ Franke
I will let you all know what the out come is. I will try and get with the mechanic and get more detail info out of him on this issue
Russ Franke
Ok, here it is. The problem with the truck is that the high pressure pump is failing. The truck is still in the shop and will be until the part comes in. They say this is on back order and they hope to see the part in 3 - 5 days. So hopefully this will be fixed early next week.
I am a little ****** about the fact that I was out of the vehicle for 2 days then they tell me it will be a week before I get it back but they will only put me in a loaner car for 2 days (today and tomorrow) if the part does not come early they will let me drive my truck unitl the part comes in.
. I toild them thats fine as long as they know they are responsible for it if more things go wrong.
I am a little ****** about the fact that I was out of the vehicle for 2 days then they tell me it will be a week before I get it back but they will only put me in a loaner car for 2 days (today and tomorrow) if the part does not come early they will let me drive my truck unitl the part comes in.
. I toild them thats fine as long as they know they are responsible for it if more things go wrong.Did you get the extended warranty? If so then they should put you in a rental for 5 days.
Scotty
Scotty
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Issue 128 – Digital Version
Digital Magazines
FREE!
TDR Test Drive - Digital Edition
Renew
Subscribe
Gift Subscriptions
Back Issues
Subscription Status
Address Change Form
Buyer's Guides
Ram Diagnostic Trouble Codes
The Perfect Collection
The Perfect Collection Vol. II
TSB Updates
Dodge/Cummins Historical Overview
Cameron Collection
What Makes Us Tick?
Product Showcase
Advertising
