My 1999 Chevy Tahoe (80,000 miles) seems to lag at times when I press on the gas, then it tends to catch up and drive fine. This seems to happen primarily after I first start it. It also has trouble starting at times, I have to let it set about 45 minutes, then it usually starts and today it never did start. It turns over and sounds like it's going to run, but acts like it's not getting any gas. What could be the cause of this?
Warren J.