Engine Performance problem
1997 Other GMC Models V8 Four Wheel Drive Automatic 149000 miles
My Suburban started taking a few trys to start and then it would finally start. I figured the starter was about to go out and took into the shop and they said that the starter was fine and it just needed a good tune up. $500 later ( I know I got screwed) and the next day it still won't start the first time. It is now 4 days later and it will crank but not start at all. Lights are all working, when I turn the key the radio and dash light works. Any ideas?