Something from FCA concerning the lag - Page 7

Something from FCA concerning the lag

This is a discussion on Something from FCA concerning the lag within the FCA/EPA 3.0L Diesel Settlement and AEM (Approved Emissions Modification) forums, part of the FCA/EPA 3.0L Diesel Settlement and AEM category; Thanks for posting FCA Email Bearing Failure Calibration.pdf....Reading the PDF on reducing low end load to lower bearing failure rates is not reassuring, considering that ...

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Thread: Something from FCA concerning the lag

  1. #61
    RAM Jr Member tollmtn's Avatar
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    Thanks for posting FCA Email Bearing Failure Calibration.pdf....Reading the PDF on reducing low end load to lower bearing failure rates is not reassuring, considering that we are not talking about towing a house here, we are talking about an engine capable of normally accelerating rather low geared little pickup. Bandaid is one word that comes to mind.

    IF I am reading this right, the failure rate was 215 per month during the given time, if true that would be a quite high % number a year considering the total population was aproximately 100,000.

    To: Hebert, [email protected][[email protected]]
    Cc: Bunker, 6yron([email protected]: 'Fuentes. [email protected] ([email protected])'{[email protected] .gov); 'Heben:[email protected]: Lee Bob {FCA){[email protected]}
    From: Morinchln Patricia (FCA)
    sent: Thur 12/1/2016 9:40:48 PM
    Subject RE: 2017 Ram
    From: Chemoby MarX (FCA)
    Sent: Thursday. December 01, 20164:35 PM
    To: Bunker. Byron: Fuentes, [email protected] ([email protected]); Hebert.
    Ce: Lee Bob (FCA)
    Subject: RE: 2017 Ram

    Great and thank all 3 of you for your time.

    We have cleared the calendar at 3 pm.

    So you can soak on them, we will make the following points:

    Field Fix
    • --;.=:=! . This CSN serves two purposes.

    1: First and foremost to revise the calibration to reduce crankshaft bearing loads during low rpm/high load conditions. These failures increased 61% May-July 2016 as compared to January-March. 2016: The failures increased another 30% August-October, 2016 averaging 215/month. We have been holding to clear the 2017 MY cert through your reruns. We cannot wait any longer with this frequency of failure.

    2. The CSN also contains the changes to controls and calibrations to align with the tailpipe emission performance of the 20I7 MY application as we have discussed and you have recently been evaluating. This can provide a significant improvement in driving emissions as we have seen in our collective testing.
    FCAFOIA


    1011612017

    E1J_001213_0033865~0001
    .
    Last edited by tollmtn; 08-07-2019 at 12:38 PM.

  2. #62
    RAM Veteran SavagePatch's Avatar
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    Quote Originally Posted by shawclan5 View Post
    I have noticed the 'non tuned' UOA seem to have 2-3 times the wear metal numbers as the 'tuned' trucks. Operational significant? - IDK however the difference is statistically significant. At a minimum further acknowledgement of an issue with the bearing design.
    For myself, I've noticed that a 15w40 Synthetic Blend has given the lowest wear metal numbers.
    Attached Thumbnails Attached Thumbnails Something from FCA concerning the lag-20190611_150956_1565206832522.jpg  

  3. #63
    RAM Veteran SavagePatch's Avatar
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    Quote Originally Posted by 97hmcs View Post
    I suspected from day one that FCA put in some code in hopes of helping the bearing issue. I also made it know that approx. 150 degrees was the magic number. Yep I'm giving myself an attaboy.<img src="https://www.ram1500diesel.com/forum/images/smilies/smile.png" border="0" alt="" title="Smile" class="inlineimg" />
    Suppose somebody kept their truck plugged in every night year round? Would they get normal acceleration but less bearing protection because the oil is still somewhat cold?

    Just food for thought...
    Last edited by SavagePatch; 08-07-2019 at 02:25 PM.

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  5. #64
    Administrator 97hmcs's Avatar
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    Quote Originally Posted by tollmtn View Post
    Thanks for posting FCA Email Bearing Failure Calibration.pdf....Reading the PDF on reducing low end load to lower bearing failure rates is not reassuring, considering that we are not talking about towing a house here, we are talking about an engine capable of normally accelerating rather low geared little pickup. Bandaid is one word that comes to mind.

    IF I am reading this right, the failure rate was 215 per month during the given time, if true that would be a quite high % number a year considering the total population was aproximately 100,000.

    To: Hebert, [email protected][[email protected]]
    Cc: Bunker, 6yron([email protected]: 'Fuentes. [email protected] ([email protected])'{[email protected] .gov); 'Heben:[email protected]: Lee Bob {FCA){[email protected]}
    From: Morinchln Patricia (FCA)
    sent: Thur 12/1/2016 9:40:48 PM
    Subject RE: 2017 Ram
    From: Chemoby MarX (FCA)
    Sent: Thursday. December 01, 20164:35 PM
    To: Bunker. Byron: Fuentes, [email protected] ([email protected]); Hebert.
    Ce: Lee Bob (FCA)
    Subject: RE: 2017 Ram

    Great and thank all 3 of you for your time.

    We have cleared the calendar at 3 pm.

    So you can soak on them, we will make the following points:

    Field Fix
    • --;.=:=! . This CSN serves two purposes.

    1: First and foremost to revise the calibration to reduce crankshaft bearing loads during low rpm/high load conditions. These failures increased 61% May-July 2016 as compared to January-March. 2016: The failures increased another 30% August-October, 2016 averaging 215/month. We have been holding to clear the 2017 MY cert through your reruns. We cannot wait any longer with this frequency of failure.

    2. The CSN also contains the changes to controls and calibrations to align with the tailpipe emission performance of the 20I7 MY application as we have discussed and you have recently been evaluating. This can provide a significant improvement in driving emissions as we have seen in our collective testing.
    FCAFOIA


    1011612017

    E1J_001213_0033865~0001
    .
    Yes at that particular point in time the failure rate was 215/mo.

  6. #65
    Administrator 97hmcs's Avatar
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    Quote Originally Posted by SavagePatch View Post
    Suppose somwbody kept their truck plugged in every night year round? Would they get normal acceleration but less bearing protection because the pil is still somewhat cold?

    Just food for thought...
    I don't think the block heater will get the temps up to 150°

  7. #66
    RAM Jr Member vettelover's Avatar
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    Quote Originally Posted by Anomaly View Post
    vettelover or vetteowner?
    Vette owner as soon as I get my other vehicle sold.

  8. #67
    RAM Silver Member Anomaly's Avatar
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    Quote Originally Posted by vettelover View Post
    Vette owner as soon as I get my other vehicle sold.
    Had one and wish that I had never sold it... Looking at the new C8 that both my wife and I are in love with. Don't know where we would drive it though, as it isn't a car that you want to leave parked anywhere.
    3DHawkeye likes this.
    Gene

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  9. #68
    RAM Professional Tupelo's Avatar
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    Interesting thread. I have a 2014 RAM - have not done the AEM yet - and have always had cold engine Lag from day one. In fact, it will often cut out slightly on a small hill I have to go up as part of my drive. It has always felt electronic to me - also in part because if I turn the AC on, it seems to eliminate some of the problem. My guess it that tells Traction Control to let a little more power go, due to the AC running.

    Wonder if when I get the AEM, the Truck will be better?

  10. #69
    RAM Professional John Jensen's Avatar
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    Quote Originally Posted by Tupelo View Post
    It has always felt electronic to me - also in part because if I turn the AC on, it seems to eliminate some of the problem. My guess it that tells Traction Control to let a little more power go, due to the AC running.
    You could prove your "guess" by pulling the F26 fuse which kills Traction Control (TCS), ESC and ABS. It will light up your speedo screen but causes no harm or codes. If pulling the fuse gives you the same or more "little more power" it proves your guess. When done put the fuse back in as you want ABS for sure.
    Kazimodo likes this.
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  11. #70
    Administrator 97hmcs's Avatar
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    Quote Originally Posted by Jerome powell View Post
    If any one has over 200k on their truck, PLEASE POST something on how many times if anytime that your truck has been in the shop and what for, what brand of oil that you are using ,etc..
    This should be it's own thread. This is not the place

    edit; It's now a new thread in the General Discussion Section.
    Kazimodo and Mopar73340 like this.

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