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Old 03-25-2012, 10:57 AM   #1
biggin69
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How many miles are it? Does it do it all the time or is it worse when it is cold? The reason I ask is because my truck (1999, 5.3) started with a rough idle when it was cold, and continued to get worse over time and run rough when warm. Got lean codes, misfire bank 1 & 2 codes, yada, yada, yada. Finally narrowed it down to the intake gasket. Super easy to replace. Good luck tracking down the problem.
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Old 03-25-2012, 11:00 AM   #2
underpowered
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Quote:
Originally Posted by biggin69 View Post
How many miles are it? Does it do it all the time or is it worse when it is cold? The reason I ask is because my truck (1999, 5.3) started with a rough idle when it was cold, and continued to get worse over time and run rough when warm. Got lean codes, misfire bank 1 & 2 codes, yada, yada, yada. Finally narrowed it down to the intake gasket. Super easy to replace. Good luck tracking down the problem.
X2 intake gaskets are a common problem on them.
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Old 03-25-2012, 03:10 PM   #3
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Yup intake gasket and replace #7 injector while it's apart... It collects the most ****
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Old 03-25-2012, 09:51 PM   #4
kirbyiv
 
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what type of fuel system are you running?
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Old 03-26-2012, 11:18 AM   #5
sarge
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Just FYI also , the LS motors will run like crap if the throttle body gets dirty , My 6.0 started running rough and stalling at stops. $3.99 bottle of TB cleaner and it runs great, I think I have cleaned everyones TB on my street now
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Old 03-27-2012, 01:45 PM   #6
jwend
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Walbro GSL392 Fuel Pump (External)
Fuel Filter/Regulator
20 Feet of 3/8" High Pressure Rubber Fuel Hose
Fuel Line Clamps
Adapters


thats my set up kirby,

http://www.ebay.com/itm/400212661347...84.m1423.l2648
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