2004 Chevrolet Silverado 2500 HD Q&A

2004 Chevrolet Silverado 2500 HD Question: Parked 2004 HD for winter

Battery went dead in stored for winter 2004 HD 6.0 Gas,installed new battery and truck now starts and quits,also gauges and dome light do not work any ideas? also getting codes in the odometer display -
Answer 1
i think the security is on..jus leave the key on at start position for 15 minute or so, then turn it back remove the key.now try start it it shold start and stay.... -
Answer 2
did you run the engine periodically? rec. when letting her sit for extended periods of time, run till fully warmed at least once a month. review when last tuned. if sitting cold for months is a good idea. also rec. oil stabilizer treatment with oil change. recondition seals and cylinders. rec. fuel system clean. ethanol treatment to 1 tank of premium fuel. ethanol blend in fuel causes build up in fuel system, combustion chambers, exhaust system and causes increased wear to spark plugs. leaves res. build up when sitting idle for extended periods of time. result may take drive time. these are things u can do ur self. rec. bring it in to a shop for diagnostic run to find any other issues u should be aware of. -
Answer 3
What are the codes? -