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Old 03-03-2013, 11:13 PM   #15
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I've heard this was more of a problem in the 2010 models. Is this true??
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Old 03-03-2013, 11:26 PM   #16
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I heard l99s have a better oil.pump is this true?
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Old 03-03-2013, 11:38 PM   #17
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I've heard this was more of a problem in the 2010 models. Is this true??
Yes thats the word and mine is an early 2010, bought in Nov 2009. And yes the L99 have a higher volume pump than the LS3. I've read that the L99 pump is GM'S high performance pump equivalent to the Melling. Who knows?? I'm going with the L99 pump.
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Old 03-03-2013, 11:40 PM   #18
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Yeah especially the early 2010 models is what I remember reading. Hope you get it worked out man.
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Old 03-03-2013, 11:48 PM   #19
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Yes the l99 is a high volume pump but the melling is still a better pump if you want to run a stock pump get the slp or katech ported and blueprinted pumps i have the melling
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Old 03-03-2013, 11:55 PM   #20
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why is the l99 a higher volume pump?
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Old 03-03-2013, 11:57 PM   #21
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why is the l99 a higher volume pump?
I'm assuming because of the VVT...
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Old 03-04-2013, 12:00 AM   #22
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so you get a better pump for a weaker link... makes no sense. I have an L99 and I cant wait to get the LS3 conversion
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Old 03-04-2013, 12:13 AM   #23
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yeah I know it sounds crazy but that seems to be the case. L99 pumps are better than the LS3 pumps.
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Old 03-04-2013, 12:29 AM   #24
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Get the Melling.
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Old 03-04-2013, 12:33 AM   #25
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yeah I know it sounds crazy but that seems to be the case. L99 pumps are better than the LS3 pumps.
I have yet to hear about a L99 pump failure. If anyone knows of 1 post it up especially a stock internal car that could not have been installed wrong with a cam upgrade.
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Old 03-04-2013, 12:55 AM   #26
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ahhh the oil pump problems. feels great not to worry any more.
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Old 03-04-2013, 03:06 AM   #27
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The only reason im not changing mine out with my cam is because that's what the word on the street was, but if anything does break after my cam i will be going melling for sure. Sometimes its good to own an automatic! Lol
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Old 03-04-2013, 09:08 AM   #28
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Hey it's not an early 2010 anything! Those were just internet rumors stock Ls pumps have been failing since 1998!
Yes there have been NO L99 pumps reported. YES the flow more volume needed for the VVT and DOD. We L99'rs use 8qts of oil lol.
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