The other day I started up my 2000 tahoe limited and took my son to school and went to the store and then home for about 15 mins. After bing home for those 15 mins I went to get in my truck and it wouldn't start. It did just sit there and just turn over it acted like it wanted to started but never did. Now it will crank over a little bit and act like it wants to start but nothing. I have spark, fuel pump works, I made sure it was still at TDS and ever tried starting it with starting fluid but that didn't even work. I don't have the money to take it anywhere and my buddy who helps me work on my vehicles is on call for work and hasn't had a chance to get over. I need all the help ASAP please. I don't think it jumped timing and if it did then it jumped it 180 out. Thanks all