Another 5.3 with AFM bites the dust ~ Chevrolet Active Fuel Management Problems

Discussion in 'GM Powertrain' started by hblock72, Jan 19, 2013.

  1. hblock72

    hblock72 New Member

    Update:
    Dealership called me monday and asked if I wanted a new motor or to repair the one in the truck. Told me I needed to kinda decide which way I wanted to go so they could see what they could do for me with their district service manager. (they were very vauge with this) Told them I wanted a new engine of course as this one obviously has been nothing but trouble. They told me that's what they would recommend as well as it would come with a 3yr/36K mile warranty. Then they went on to tell me the GM usually won't offer any assistance with this option and I'd still be on the hook for the $7200. They said for GM to provide any assistance, they would want to troubleshoot and repair the engine in the truck and would likely cover up to 50% of the cost. Although, not too happy about it, I chose the repair route hoping it would come in much cheaper than the $7200. So this morning I got a call from the dealer telling me they (just like before) had found collapsed lifters and replaced them and the truck was ready to be picked up and that GM was covering the cost of the repair. I would only owe for the sparkplugs/wires/tune up.

    I guess I have mixed feelings on this. I'm glad I don't have a huge repair bill. On the other hand, this is probably just another band-aid fix and will likely happen again, it's now happened at 55k, 90k, and 117k, so I guess they're only good for about 30k miles. I also doubt this will fix the oil consumption problem. I guess i'm just gonna hope I can get through another few months and be looking to trade for something else and just cut my losses with this thing.


    TRPLXL2: I'm in NC, so ohio's a pretty good haul

    EVAN: thanks, i tried to PM you, but not sure it went through (i'm not too savy with these forums)
     
  2. Enkeiavalanche

    Enkeiavalanche Rockstar 4 Years ROTM Winner 5000 Posts

    Just as the Old saying goes.... They Sure as hell don't Build them like they Used to.. SAD!!!
     
  3. Conlan Rose

    Conlan Rose Rockstar 3 Years 1000 Posts

    This all makes me happy I got the last gen of GM engines before AFM came to be. Go 5.7L Vortec!
     
  4. TRPLXL2

    TRPLXL2 Epic Member 5+ Years 1000 Posts Platinum Contributor

    All this technology is awesome in theory, but if the mechanics can't fix it then what good is it?

    I'm glad you got it fixed, but just remember every vehicle is going to have lemons out there. It's inevitable.
     
  5. Enkeiavalanche

    Enkeiavalanche Rockstar 4 Years ROTM Winner 5000 Posts

    But too many of us and others not on this site are having the same issue's It's not good.. Bring back the Old 5.7 It was and still is A Great motor and with a little work it too can get good MPG's and last over 100K with NO problems...
     
  6. Pikey

    Pikey Moderator Staff Member 3 Years ROTM Winner 1000 Posts

    When was the first year AMF was available for the 5.3l? It was not an option in 02 or even 05. I am happy with my nonAMF 5.3l
     
  7. Conlan Rose

    Conlan Rose Rockstar 3 Years 1000 Posts

    2005 was first year with it standard in all but the LH8 engine. Not sure on prior to that, but the 5.7L is the last gen of "true" Chevy small blocks and it had no form of AFM. I wish GM never removed it from production, its one of the best engines ever built. I love mine and other than the rear main seal going I've never had a problem and that's with 198,200+ miles. Some have even reached 1,000,000 miles!
     
  8. Pikey

    Pikey Moderator Staff Member 3 Years ROTM Winner 1000 Posts

    Hmm, I have a L59, So by that theory I should have AFM if it was standard for all but the LH8. I have been meaning to ask, did that messed up noise on your passenger side head go away after all the work you did?
     
  9. Conlan Rose

    Conlan Rose Rockstar 3 Years 1000 Posts

    Yah the noise has cleared up pretty much, except cold morning starts it returns for a little. PM me about it.

    Btw the L59 is just fuel flex it doesn't explicitly say it is an AFM engine. The LH6, LY5, LMG, and LC9 are all AFM engines; ones prior to those I don't know.
     
  10. ChevyFan

    ChevyFan The Sheriff Staff Member 5+ Years 5000 Posts

    Sorry to hear about your issues .

    First off, can you tell us the history of anything else that we should know about the vehicle. Regular oil changes (and you kept proof), regular maintenance by the book, etc. What did you do with the truck? Regular driving and/or light commercial work? Did you tow heavy trailers with it a lot (not just a trailer to go camping or the boat to the beach) ... I'm just trying to get an idea for how the truck was used.

    Seems like now that these engines are starting to get some age on them that a lot of people are coming forward to voice their concerns about the engine longevity. I'm going to make a register of sorts so that people with these issues can let it be known that they're seeing some issues.

    - - - Updated - - -

    On average the longevity of engines and transmissions is going through the roof. The average major mechanical breakdown occurs now close to 190,000 when averaged across all makes/models for the last few years.

    - - - Updated - - -

    That's a very good point. As these system get more and more complex, and we have shorter time-to-market cycles, I wonder if they're doing enough to engineer out all of the potential issues?
     

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