Will not start after replacing intake valve cover gasket change along with crankshaft position sensor

Hi,

I will do my best to help. I need more information. When you say the vehicle does a "half jerk sound," do you mean the starter stops? If that is the case, a fuse won't make a click, so it is likely a relay.

If you look at pic 1 below, it shows the central junction box. I highlighted the starter relay. Place a finger on it and see if you feel the clicking.

If the starter isn't giving you a problem, I need you to check for spark and fuel to the engine. Here are two links that show how that is done:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system

If you have a live data scanner, check to see if there is an RPM signal when cranking. Also, if you can, record what it is doing and upload it for me to hear. That may help me narrow things down for you.

Take care,

Joe