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Generation III Internal Engine 1997-2006 LS1 | LS6
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rough idle

   
Old 05-04-2010, 02:16 PM
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My mechanic just put a new water pump in my 99 TA and a rear main seal.. Now for some reason it idles rough,no codes,no spark plug wires off..
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Old 05-04-2010, 04:26 PM
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did he pull anything else off? maybe check for a vacuum leak?
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Old 05-04-2010, 04:38 PM
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Originally Posted by Irocem99
My mechanic just put a new water pump in my 99 TA and a rear main seal.. Now for some reason it idles rough,no codes,no spark plug wires off..
Any wires on the headers? Did he pull the headers off? Cracked a plug?
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Old 05-04-2010, 05:04 PM
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I don't have headers..I don't think he had to mess with the plug wires.. It vibrates the worst when you start taking off..
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Old 05-04-2010, 10:00 PM
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could be the way he re-installed your tranny. did he replace the throw-out bearing?... Auto or M6?...
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Old 05-05-2010, 12:31 AM
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I would be looking at the tras as well. Do you have an A4 or M6?
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Old 05-05-2010, 03:21 AM
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Check for vacuum leaks and loose sensor connections. Hell take it back to the mechanic and tell him to find the problem.
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Old 05-07-2010, 12:46 PM
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its an auto..there are no codes..its gotta be vacuum I'm thinking..
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Old 05-07-2010, 08:43 PM
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Originally Posted by Irocem99
its an auto..there are no codes..its gotta be vacuum I'm thinking..
No, it actually sounds like a trans problem like was mentioned before.
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Old 05-07-2010, 09:29 PM
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Originally Posted by Irocem99
My mechanic just put a new water pump in my 99 TA and a rear main seal.. Now for some reason it idles rough,no codes,no spark plug wires off..
You should take it back to your mechanic.
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