2002 Silverado 5.3 missing and low power
Truck has 185,000 miles and check engine light has been randomly coming on for about 3 years then last week it started flashing and I noticed the truck was low on power because of a miss. I figured it was time for a set of plugs and wires anyway so I put them in and it's doing the same thing. I pulled the codes and found a P0300. Fuel pressure holds 52. I have tried to determine which cylinder it is missing on and it seems that all 8 are firing. sprayed ether all around the intake to check for leaks and that did not change the way it runs. I have looked at all the vacuum hoses that I can see. I did fill it up with gas right before it started this, I am thinking maybe I got a bad tank. I've always ran ethanol free in it.
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