BIGGSGANG7
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I have a 2000 gmc jimmy 4.3 diamond edition and it will start then die for a while then fire and run great, also all the lights on the instrument panel will come on(check engine, low fuel, battery, security, etc) then go off after running for a while. Even with all the instrument panel lights on it runs great. I took the security switch out about 5 years ago with no problems. Wondering if it is the security switch needs replaced or the ignition switch. Any help would be greatly appreciated.