95 yukon stalls in rain

[CandyMan337]

My 95 yukon spits sputters & stalls @ low rpms in wet weather. And on cold starts. It only does it for about 5 mins. on cold starts. But when it rains, it's hard to get going. It loses power spits & sputters at low rpms. Cap, rotor, wires,& plugs all less than 3months old. It has the 5.7L v8 with a light cam. Any help would be appreciated.

 

[retorq]

Define light cam.

 

[CandyMan337]

Not sure what size it is. When I had the motor rebuilt the guy said it had a light cam in it. He just replaced it with the same size that was taken out.

 

[SunlitComet]

a light cam should do no harm. i would look into moisture intrusion on the electrical components first. corrosion is a good sign of it.