ChrisFix demonstrates how to diagnose and fix an engine that cranks but won't start. He uses a 1998 Honda Civic that hasn't run for four years as an example. The process involves checking for fuel, air, spark, compression, and correct timing. After ensuring the battery is charged, coolant and oil levels are adequate, and the spark plugs are in good condition, he diagnoses the issue as incorrect timing due to a loose timing belt. Once corrected, the car starts successfully.
Here are the key facts extracted from the text:
1. The car in question is a 1998 Honda Civic with 90,000 miles.
2. The car was given to ChrisFix by his neighbor, who had been unable to get it started after it broke down.
3. The neighbor had taken the car to a mechanic, who replaced the computer, coil, and distributor, but was unable to get it started.
4. ChrisFix began by charging the battery and checking the coolant and oil levels.
5. He then pulled the spark plugs and sprayed fogging oil into the cylinders to lubricate the piston rings and cylinder walls.
6. ChrisFix used a mechanic's stethoscope to check if the fuel injectors were firing, but also mentioned that a long flat-head screwdriver can be used as an alternative.
7. He checked the fuel system by listening for a hum when the key was turned to the "run" position.
8. ChrisFix used a tool to check for spark in each cylinder.
9. He checked the air filter and intake tubing for blockages.
10. ChrisFix used a compression gauge to test the compression in each cylinder.
11. The car's timing belt was found to be loose, which could have caused the engine to be out of time.
12. ChrisFix removed the timing belt cover and valve cover to inspect the timing belt and camshaft gear.
13. He found that the camshaft gear was not in alignment and adjusted it to the correct position.
14. ChrisFix tightened the timing belt and adjusted the belt tensioner pulley.
15. After making the necessary repairs, ChrisFix was able to get the car started.