Try disconnecting the power and then reconnect to reset the unit. Look for a reset button on the unit.
how to remove a clutch pedal assembly 2004 gmc sierra
Dude i have the same exact problem i put my CD in and nothing will eject or play
On a 2004 GMC Sierra with a 5.3 engine, the knock sensor is locatede under the intake manifold. You have to remove the intake to get to them. There is 2 of them, so it might be better to change them both while it is apart.
The 2004 GMC Sierra-1500 has 12 valves.
The 2004 GMC Sierra-2500HD has a V8 engine.
The 2004 GMC Sierra-2500HD has 16 valves.
The 2004 GMC Sierra-1500 has a V6 engine.
The 2004 GMC Sierra-1500 is a gas-powered vehicle.
The 2004 GMC Sierra-1500 has overhead valves (OHV).
The 2004 GMC Sierra-2500HD is a gas-powered vehicle.
The 2004 GMC Sierra-2500HD has overhead valves (OHV).
The 2004 GMC Sierra-1500 has a 5-speed manual.