ATP is hydrolyzed into ADP in the following reaction: ATP+H 2 OâADP+P i +free energy. Like most chemical reactions, the hydrolysis of ATP to ADP is reversible. The reverse reaction combines ADP + P i to regenerate ATP from ADP. Since ATP hydrolysis releases energy, ATP synthesis must require an input of free energy. ADP is combined with a phosphate to form ATP in the following reaction: ADP+P i +free energyâATP+H 2 O. ATP and Energy Coupling
Getting Started. Fouled, damaged, or worn out spark plugs can lead to a variety of engine problems, such as misfires, hard starts, increased emissions, and poor fuel economy. For most vehicles, you should replace your spark plugs every 30,000 miles (consult your owner's manual for your specific interval).
The GMC Sierra is available in 1500 and 2500 models. The spark plug replacement process on both of these GMC Sierra models is the same. GMC suggests that all spark plugs be replaced every 100,000 miles. When removing spark plugs, always remove one spark plug wire at a time to avoid mixing up the wires.ever force the spark plug into the bore. Connect the spark plug cable to the end of the spark plug and remove the next spark plug cable. Repeat the above process for the rest of the spark plugs. Connect the battery cable and replace the rubber flap, if removed in Step 2.