Gagliano7

Thanks for that info on the fog lights. Will definitely do that in the near future.

What is ISC?

They all vary but the bad one will be quite a bit lower around 100 degrees or more.

I live in NY and bought a truck in NJ and the dealer took care of all the dmv and tags. All i had to was stop by and pickup my plates. Sounds like the dealer screwed up and they want you to pay. Total BS

Here is a video i found for cruise control DBW

03 and up gas pickup trucks are dbw drive by wire. The 1999-2002 DBC need the box for cruise control.

Could also be one of your coils. I had a coil that would work great at part throttle and wot but not at idle. The way i found it was using a temp gun i checked every exhaust primary and found one that was a lot cooler than the others and that was the bad coil.

I didn't think the 6.0 vortex max had AFM?

Let me know if you find out anything i want to do the same thing.I would also like to add fog light how was that to do? Thanks

Does the truck run like it has a misfire or you just get the code? I know i read somewhere that a bad crank or cam sensor(can't remember which one) can cause false misfire readings.

1st and second are the only gears with synchros. Probably a bearing in trans making a noise. Check and change tranny fluid. You have to use the correct fluid synchromesh for the manual trans. Only takes around 2 quarts.

Everything i have seen the 6 speed was faster than the 8 speed and the 8 speed is faster than the 10 speed behind the 6.2. I was surprised when i read that, i thought for sure the 10 speed would be the quickest.

I wonder how the got them started? Pretty incredible if they got the trucks started without keys.

https://www.rockauto.com/en/catalog/chevrolet,2004,silverado+1500,5.3l+v8,1424102,exhaust+&+emission,pcv+(positive+crankcase+ventilation)+hose,11784 Here is the hose at rock auto

Oil wouldn't affect pressure that much. I am going with a bad filter.