I work for a university where students are often approved for a Sallie Mae loan, but usually only for a small amount (less than $2,000). When the amount gets higher, then factors like income and the length of your credit history will matter more.
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). It is also recommended that you replace your spark plugs wires at the same time, or you may still experience misfires or other problems.
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.