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Rough Idle

Rough Idle

Postby 2011chevy [OP] » Apr 18 2013, 10:46pm

I have a 2013 Silverado with a 5.3. When I am driving and come to a stop light or stop sign the engine idles rough. Had it to the dealer today and they felt it but because the computer is not throwing any codes they would not do anything. They said that the 5.3 ECM will lean out the fuel and the idle will fluctuate up and down. I can look at the tach and see the needle move up and down. The idle goes from about 550 to 493. They said that is normal. Just wonder if anybody else truck is doing this? I only feel this when it is in gear. Cannot feel anything in park.
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Related Topics  Rough Idle   rough idle   Rough Idle   Rough Idle   rough idle/stalling   Rough Idle, no acceleration   Rough idle after being plugged in   Rough idle and ticking   My rough idle fix..   Rough Idle 08 6.0l silverado   Rough idle in the cold.    6.0L rough start/idle   2011 silverado rough idle   Rough idle on 5.3 V8- 2012 silverado 
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Re: Rough Idle

Postby Machster69 » Apr 18 2013, 10:52pm

Mine does it, all of my 5.3s stumble some... But they do it in park also
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Re: Rough Idle

Postby ASTE25 » Apr 18 2013, 11:12pm

Mine did it as well.
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