Typically, our GX cranks and starts fine...after turning over once or twice. However, recently it's been slow to start. Today, I felt as if there weren't enough CCA. Battery is 2 yrs old (about 23K miles old) and the alternator was replaced about a yr and a half ago. I suspect it's the battery, however what are the symptoms of a failing starter? How difficult it is to replace the brushes or change it with a remanufactured one on a 2006? Is there a DIY on the starter? I just want to cover all the bases...just in case.

Thanks in advance for your help.

 

Its quite possible its the battery

but bingo bango....heres a tutorial and starter diagnosis

http://www.mgaguru.com/mgtech/electric/ss_101.htm