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Old 09-29-2012, 12:11 PM   #1
bksavs
 
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Partial throttle stutter

Has anyone else experienced a part throttle stutter around 1800 rpm? Ours has been at the dealership for 2 days trying to figure out why we have this misfire and why the ECM isn't detecting it. Of course, if we just keep the revs over 3 grand the thing runs like a beast and the MRT V2s sound awesome...
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Old 10-01-2012, 11:10 AM   #2
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Just got mine fixed.. its the torque converter. Do a search and you will find a couple threads. It has been an issue on multiple cars.
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Old 10-01-2012, 11:59 AM   #3
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Search my name and you will see I created a thread with part numbers and TSBs
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Old 10-01-2012, 02:01 PM   #4
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Is this torque converter issue affecting both auto and manual 2012 v6's?
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Old 10-01-2012, 02:07 PM   #5
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AAAAA, a manual doesnt have a torque converter.
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Old 10-01-2012, 03:28 PM   #6
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Try a Ported Throttlebody...... not a GM fix, but may help..
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Old 10-01-2012, 04:35 PM   #7
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Ported TB is the fix....ask any that have one.
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Old 10-01-2012, 04:58 PM   #8
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And since is in (in effect) a design flaw (though it performs within specs), GM will never admit they screwed up. The VMax throttle bodies are great, but it will be on your dime - well worth it.
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Old 10-01-2012, 05:02 PM   #9
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Quote:
Originally Posted by SC2150 View Post
Ported TB is the fix....ask any that have one.
Is this for the cold-engine bucking that happens at part throttle, or something else?
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Old 10-01-2012, 09:19 PM   #10
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Quote:
Originally Posted by partymn View Post
AAAAA, a manual doesnt have a torque converter.
Ah ok. Newbie moment for me!
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Old 10-09-2012, 02:51 PM   #11
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Torque Converter, mine has been in the shop since last week waiting for parts.
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