Q: 1999 Cadillac Escalade cranking, but not starting

Hello. There are a lot of possible causes of this. The most common being a bad fuel pump or crank position sensor. Both are very common. I typically start by checking the computer for codes with a scan tool and checking for a crank signal. If there is none, then I replace the crank sensor. If there is a signal then, I will move on to check fuel pressure. If there is no fuel pressure then, I would need to test for power at the fuel pump to see if the pump is bad or if it is electrical. If nothing is found there then, I need to usually check the ignition circuit for further problems. If you need help coming up with the proper diagnosis, consider YourMechanic, as a certified mechanic can come to your home to inspect your starting issue and have this problem repaired.