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Old 06-01-2013, 06:38 PM   #1
Smkn600CTD
 
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Noisy lifters 2013 L99

The car has 4k miles on it, 2013 L99. If I don't drive it for a day and start it up in the am, it sounds like gunfire under the hood for about 2-3 seconds then it quiets up.

Is this normal for the lifters to drain down after only a day like that?
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Old 06-01-2013, 06:43 PM   #2
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No it is not normal. You need to take it to a dealer and have the lifters replaced, and soon before they fail.

There is a bulletin about L99's and bad lifters. GM was suppose to have fixed the issue but apparently some are still getting through.
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Old 06-01-2013, 07:05 PM   #3
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Wonderful....not!
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Old 06-01-2013, 07:36 PM   #4
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Yeah the L99 lifters are shit...
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Old 06-01-2013, 07:57 PM   #5
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First chevy in 18 years and regretting it already? Not acceptable of $40k car in this day of technology. Was gonna do headers/tune, but this rate I don't trust it to go 100k without some engine work or something else failing.

Permagrin....gone :(
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Old 06-01-2013, 08:08 PM   #6
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First chevy in 18 years and regretting it already? Not acceptable of $40k car in this day of technology. Was gonna do headers/tune, but this rate I don't trust it to go 100k without some engine work or something else failing.

Permagrin....gone :(
If you're going to do that, you might as well get an LS3 conversion, and not worry about the crappy AFM/L99 parts anymore.
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Old 06-01-2013, 08:30 PM   #7
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The cost of the conversion probably be the same as trading/selling it for a ls3 and not have to screw with it.

What's the worst it going to do? AFM sucks for more reasons than one!!!
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Old 06-01-2013, 08:42 PM   #8
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The cost of the conversion probably be the same as trading/selling it for a ls3 and not have to screw with it.

What's the worst it going to do? AFM sucks for more reasons than one!!!
You'd lose a lot more on the trade in... The AFM lifters are shit, and buy doing an LS3 conversion you eliminate them, giving you peace of mind that your car won't break. Or you can go all out and do a nice aggressive cam as well
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Old 06-01-2013, 08:46 PM   #9
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Here's a thread that I found about it:
http://www.camaro5.com/forums/showthread.php?t=167640
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Old 06-01-2013, 09:36 PM   #10
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Hmmm wonder why? My coworkers 2010 L99 has 137K miles he has never had an issue and he has LT exhaust and a tune.
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Old 06-01-2013, 09:46 PM   #11
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Hmmm wonder why? My coworkers 2010 L99 has 137K miles he has never had an issue and he has LT exhaust and a tune.
From my understanding it's basically a crap shoot
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Old 06-02-2013, 12:39 PM   #12
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Quote:
Originally Posted by Smkn600CTD View Post
The car has 4k miles on it, 2013 L99. If I don't drive it for a day and start it up in the am, it sounds like gunfire under the hood for about 2-3 seconds then it quiets up.

Is this normal for the lifters to drain down after only a day like that?
Truly sorry to hear about lifter concerns Smkn600CTD. I would definitely like to investigate this further for you. Would you mind sending me a PM and referencing this thread? I look forward to your contact.

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Old 06-02-2013, 12:55 PM   #13
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PM sent
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Old 06-02-2013, 08:44 PM   #14
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From my understanding it's basically a crap shoot
Not really...there are thousands of them with over 100k....these motors are extremely solid.
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Old 06-02-2013, 09:10 PM   #15
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I'm having mine done within a week or so, at the dealership, under warranty. I didn't notice them until about the last 5000 miles or so (currently right at 36000). When they act up it is very noticeable! I can hear mine while idling, hot or cold. If I had the money I'd do the LS3 conversion in a heartbeat!
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Old 06-03-2013, 11:28 AM   #16
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So dropped it off this morning.

The service advisor tells me that since the oil had been changed at 1500 miles (car has 4300 miles, wasnt going to leave the break-in oil for 7k miles) at a non-Chevy dealership that it would be a customer pay situation 1st because more than likely the oil is contaminated and they messed something up.

I handed the shop the AC delco filter and the Mobil 1 oil in a big sealed bottle, so I told him straight up that's not the deal.

He insisted that agree to a $115 buck estimate to diagnose.

Told him not picking it up til either new lifters go in or a new engine.

Now I wait.....
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Old 06-03-2013, 04:28 PM   #17
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I'm having mine done within a week or so, at the dealership, under warranty. I didn't notice them until about the last 5000 miles or so (currently right at 36000). When they act up it is very noticeable! I can hear mine while idling, hot or cold. If I had the money I'd do the LS3 conversion in a heartbeat!
Make sure you let us know how everything goes! Keep us updated OmniCamaro.

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