eruby I live here! Posts: 896 Joined: Nov 30, 2003 Gender: male Logged OK, I've got a 95 1500 with a 5.3L engine. 88K miles. Occasionally, the check engine light comes on. Sometimeswhen I start it and sometimes when it's been running. it doesn't stay on. Before a go to the local stealer, can anyone tell me the different reasons the light may come on? It got a new cat installed at about 65K miles (stillunder the warranty). Any help would be appreciated. Thanks.