Cranks, has spark, no fuel pulses at fuel injectors

Hello, I'm Danny.

You say you replaced the fuel regulator but you might have a failed fuel pump due to sitting for so long. I would suggest to first perform a fuel pressure test. If you don't have access to a fuel pressure tester most auto parts stores have a tool loaner program and can rent you one. Here is a tutorial showing what is involved:

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

After performing this test get back to us with the results and we'll go from there. The proper fuel pressure for your truck should be 55- 62 psi with key on-engine off. Hope this helps and thanks for using 2CarPros.

Hello again.

So, you were able to get the truck started? You mentioned it feels like it has a multiple cylinder misfire. With this happening did it turn the check engine light on and set a diagnostic code? I would suggest having a CAN scan performed. It will test all the systems on your truck for fault codes including misfires. Here is a tutorial showing what is involved for a CAN scan:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Once you have this done get back to us with any code information and when can continue to diagnose these issues. Hope this helps and thanks again for using 2CarPros.

Danny-