So since I bought this Mach attempting to start would hesitate with a lazy "chug-chug" turning sound, then catch and start. Yesterday I plugged a tire pump into the cigar lighter and pumped up all my tires. Then, I tried to start the car and it would chug/turn VERY slow, lazily, then just went to a click when turning the ignition. I jumped it and it started RIGHT up so quickly w/ no issues. I drove it for 10 mins. then turned it off and it's right back to the lazy start to NOTHING again. All the lights, radio, etc. work just fine. Is it the alternator?