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

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

  1. the phantom

    the phantom Epic Member 5+ Years ROTM Winner 1000 Posts

    Even with the AFM shut down you still got a lot of oil out of your catch can didnt you? I thought I remember you saying there was quite a bit in it.
  2. phoebeisis

    phoebeisis Epic Member 5+ Years 1000 Posts

    TBPLUS- old answer but good answer.
    I distinctly remember the problems GM had with those old 4-6-8 ENGINES??
    I forget exactly what GM called them-but it was something like 4-6-8??
    Seem to remember seeing a chrome "decal" on the fenders
    They were the original NORTHSTARS? Wow you would think GM would have DUMPED that name-they were BAD engines- heck the 350 diesel was WORSE but not MUCH worse.

    How do OTHER manufacturers handle the potential "oil consumption" increase due to different cooling rates expansion contraction-"rings" don't seal right aspect?
    Honda Toyota Ford etc ALL have used some sort of cylinder shutdown for a LONG time-maybe 15-20 years?

    PS Did you replace the TD Cruise with another TD cruise- or did you get some other smallish car?
    Best deal in history-$20,000 for a TD Cruise(sic)-shame about it-but family not seriously injured so.....after that sort of horrendous wreck... WOW- guess it was pretty well designed


    PS Eventually I will replace my 1998 Suburban-225,000 miles-with a newer used Suburban-but I will go for a 2004-2006 because I want lay flat seats(we sleep in it on trips) and just as soon not deal with any oil consumption problems
    Besides I'm cheap and a 2004 is $6000 or more cheaper than a 2007.
    Now isn't the time to buy-low gas prices means used 1/2 ton SUVs aren't as cheap as they are when gas is $3.50-$4.00-just as well since we have lots of other things to catch up on now that we are both getting SS and have steadier income
  3. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor

    Havent looked at the othe mfgr issues much, I do know Toyota has some oil issues but it isnt widespread as GM's
    Wife went back to driving the HHR, we havent settled on the Cruize yet, they tried too lowball since I owned the car outright, I got a lawyer involved and were fighting through it. Probably end up in court if something doesnt happen soon.
  4. phoebeisis

    phoebeisis Epic Member 5+ Years 1000 Posts

    Typical insurance company CS-what a surprise.I really hate insurance companies-car health etc-all cut from the same chiseling cloth!

    I know toyota had the oil sludge-gumming up the engine problem- on and off for a long time-maybe they have solved that?
    Hard to believe GM has allowed this problem to fester -guessing it is less common than forum complaints would lead you to believe-maybe 1/100 1/1000
  5. j cat

    j cat Epic Member 5+ Years 1000 Posts

    Toyota had some issues with the valve timing system they use and the oil not properly creating the timing correct lock due to draining down. the use of synthetic oil of the proper viscosity did reduce these issues. problem with the Toyota engine is to break it down is a big job...

    as far as oil consumption or transmission issues Toyota is far superior to GM with/comparing Toyota to GM and these new late model engines drive trains.

    this gm oil issue is not going away...
  6. GM Customer Service

    GM Customer Service Epic Member 5+ Years 500 Posts


    Hey there! Thank you for being a loyal GM Customer! I understand that you just purchased a new to you vehicle. I just wanted to stop by and let you know that GM Customer Care is here on the forum and happy to assist you with any general questions or concerns you may have with any GM product. We are only a private message away!

    Jennifer T.
    GM Customer Care
  7. phoebeisis

    phoebeisis Epic Member 5+ Years 1000 Posts

    Various significant problems can drag on.
    Honda for example took about 5-6 years to solve the problem they had with their 5 speed AT in the V-6- fair number of failures-2000-2005 I think.
    Chrysler-Plymouth was infamous for the AT in their vans-they failed after 60,000 miles-this went on for many years
    These 5.3's shouldn't fail-if you watch the oil level closely.
    Granted-new truck-you don't expect a 2010 vintage truck to use 1 qt per 1000 miles-that is 1950's-1960's "normal"
    Now most vehicles use a quart and a little change between 7500 mile oil changes
    Hell my 1998 5.7 225,000 miles- LEAKS oil-noticable amount under truck-but it doesn't use 1 quart per 1000 miles-leak and all!
  8. dpatrckunc

    dpatrckunc New Member

    I have the same issue, 2008 Silverado LT 5.3. I have no compression on Cyl 4, reporting a misfire, was cyl 6 then service Stabilitrak, Traction Control off, service traction control. Does anyone have a difinitive answer. I took it to my local shop and they havent a clue. I am reluctant to take it to the dealer, because of the horror stories listed in some of the threads. 82,000 mile and truly disappointed. Any help would be great.
  9. Jennifers13

    Jennifers13 New Member

    I bought my 2007 Chevy Avalanche flexfuel LC9 engine at 83,000 miles. From the very first oil change, this puppy has been leaking oil. Every time without fail, the computer reads 50% oil life remaining, and low oil. I don't know how many quarts per miles that boils down to but it seemed excessive. The first time it happened, I took it to my trusted oil change shop and they filled it back up and said "eh, thats normal with a high mileage vehicle". I'm a female and don't know much about cars, so I took the professionals advice and came back every 50% oil life remaining and had them add oil.

    My truck has about 125,000 miles on it, according to the mechanic. The wiring harness went out so I don't know for sure. Three weeks ago I was parked idling, and the something happened and the engine started idling rough. When I started driving there was a miss in the engine. I took it to auto zone for diagnostics and got p 0300 cylinder 4 misfire. Traction control light is flashing, check engine light flashing. Replaced spark plug, no help. Replaced coil pack and spark plug, no help. Started smoking from exhaust. Took it to the shop, they said zero compression from the cylinder 4 and zero movement on rocker arm coming from camshaft. Then told me to replace the entire engine for $5000 that I definitely do not have. Owe $10,500 on a pretty yard decoration.

    I have no idea what to do now. Any advice?



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  10. phoebeisis

    phoebeisis Epic Member 5+ Years 1000 Posts

    I almost feel guilty we have had such good luck with the 98 suburban we bought in 2007 with 195,000 miles on it-it has been a winner-225,400 miles-still getting good mpg-
    Granted it leaks some oil-and some coolant-but after all those miles-who cares

    You certainly have my sympathy-hard to believe a truck could go so sour with so few miles

    Oh-the Jasper engines-supposed to be pretty good-$4600-seems fair.

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