rough idle

[pull]

hey all


i have a 99 silverado z 71 with 92000 mile on it and was woundring why it idles rough,seems to drive good but when im in park or at a stop light i feel it idle rough,just changed oil about week ago and changed spark plugs not to long ago. thank for any help

[gschretter]

Fuel Filter
B-12 the throttle body
Check air filter.
Unplug - battery cable and let it sit for 15 minutes and hook it back up.
Sometime your computer needs to be reset.

[pull]

thanks gschretter ill try that .......

[gtmud]

What size engine? 350? Look futher through this forum. I have a write up on what fixed mine. 91 Silver. 4.3ltr,w/ manual trans. 160K+.