2005 Chevrolet Silverado "rough idle" Questions

...i had the alternator cheched out an they say it's good . what would cause it idle rough there is a lot of reasons to make it idles rough . and you have to diagnose by it by diagnostic tool

rough idle, idles good after "check engine" light My 2003 silverado idles very rough, and then the check engine light comes on. After the light comes on, it runs great and idles very smooth. Any ideas

Idle problems idles rough, surges, and stalls. Gets worse after engine is restarted after warming up. Could be a few things, EGR valve needs replacing, or the fuel pump and fuel filter,

Rough Idle on my 2004 Chevy Silverado Ive owned my 2004 Silverado truck for alittle over 2 years and this is the first time its been doing this rough idle thing. It started yesterday. When Im stopped,

...rough idle. When the truck sits for a few days it is hard to start and idles rough. Also hesitates when hitting the throttle. Once it runs for a minute it goes away, but sometimes hesitates when ...

...rough and sputtering idle in the morning when I crank it. what could the problem be? Check your MAP Sensor. It should be located on the top rear of the intake plenum. I took mine out, cleaned it with ...

...rough or inability to idle (including stalling). If those additional symptoms are part of the problem, check for a vacuum leak to the intake. Listen for hissing or sucking noises near air hoses. Look ...

...rough idle and to the point of almost dying even in reverse then when i get down the road after being on the gas the rpms kick in and doesnt do it again until i come to a stop or when idling in park. ...

...idle rough.. getting 3 codes ok.. here we go.. engine is idleing rough blows black smoke when motor is revved up..poor gas mileage.. and get 3 codes coming up..and they r PO171 PO174 and PO300.. i ...