rough idle

[jspeedo]

2002 Chevy express van. Will run good and all of the sudden when you start it again, it doesn't want to idle. It goes along time between these "episodes" but two weeks ago it did this and again tonight. This never set a code and it always clears up. Any ideas as to what the problem is?

[03chevy]

you can start by checking this stuff.

1Inspect Idle Speed Control Actuator Damaged, loose, or faulty idle speed actuator

2Inspect Throttle Position Sensor Faulty throttle position sensor or throttle position sensor circuit.

3Inspect Wireset Damaged, worn, or deteriorating spark plug or coil wire(s).

4Inspect Idle Stop Solenoid Damaged, loose, or faulty idle stop solenoid

5Inspect Idle Air Control Valve Damaged, loose, or faulty idle air control valve

7Inspect Spark Plug Wire Loom - Performance Improperly adjusted or worn/malfunctioning carburetor.

8Inspect Air Filter Clogged or dirty air filter

9Inspect EGR Valve Clogged, dirty or improperly functioning or defective egr valve.

10Inspect Fuel Filter Clogged or dirty fuel filter

11Inspect Fuel Injector Plugged, dirty or poorly connected fuel injector.

12Inspect MAP Sensor Improperly connected or faulty m.a.p. sensor.

13Inspect PCV Valve Plugged or damaged pcv valve.

14Inspect Point Set Burned, worn or incorrectly set ignition points.

15Inspect Spark Plug Fouled, damaged or broken spark plug(s).

16Inspect Fuel Pump Improperly functioning fuel pump or circuits.