I have an 01 santa fe 2.7l that died going to work last week. after it died I coasted back down the hill the car restarted I drove it the 2 miles home and shut it off. I was able to get it started by helping it along by jumping it with my truck. I let it run for about 30 mins and shut it off and now it wont start. when I turn the key it cranks but it is very slow almost sounds like its tight. I recharged the battery and still same thing. any ideas what it could be? also it has almost a rubber burning smell after trying to start it. thanks in advance.