I have a 04 chevy silverado 2500 and i think the throttle body is dirty ? the truck will have a light come on that says reduced engine power and sometimes it will cut out it only happens once in awhile. is it hard to fix ? Chad
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2004 Chevrolet Silverado 2500 Question: repair
Answer #1Jim Taddei February 11, 2011, 15:20Master
Often times the reduced engine power message on you 2004 Chevrolet Silverado will come on due to a poor connection at the throttle body connector. This can be due to a wire broken inside the insulation or a damaged terminal inside the connector. Sometimes faults with the electronic throttle body can be difficult to diagnose. A dirty throttle body should not cause the message to display but may cause a low idle condition. If the wiring at the throttle body checks out OK the next step would be to check for stored fault codes.