I jacked up my car to look at an oil leak. After finishing I put the car on the ground started it up and put it back in garage. My wife went to start it next morning and nothing. It cranks but wont start. Could it be spark plug which just got changed a couple months ago or fuel filter. Please help.
Need fuel, air and spark to run. Most likely you lost spark. The ECM is mounted to the front of the engine, right side and has 1 or 2 wire connectors on it. Grasp the connectors (one at a time) and wiggle them without trying to remove them. That may re-establish a bad electrical connection that prevents starting.
Might try the same with the relays in the underhood fuse block, although the fuel pump relay is in the right rear block.