: Rough runner when it rains. 93 n'star

04-28-08, 09:57 PM
Runs like a sewing machine except when it rains. Then, I have to run it --rough--until it heats up and dries out-1 hour or so. whats up?
Thanks.125,000-no problems other than this.

04-28-08, 10:13 PM
If the plug wires are original, start there.......When were the plugs themselves last changed?? Use ACDelco only.

Pull the engine cover (if any) when cold and start the car at night, hood up. Any arcs and sparks??

04-28-08, 10:19 PM
New Wires -AC Delco And Plugs About 9k Ago. Will Take A Peek At Night To Look For Spark Arc's. Any Other Idea's? Thanks.

04-29-08, 10:43 PM
Next time it happens, Check if the air filter is wet.