I pick up my 2000 Silverado Z71(5.3 auto) last month used with 100,000 miles on.
I have ran several tanks of gas through it and I can only get 13 mpg. It doesn't matter if I romp on it all day, run 400 miles on the freeway,or grampa it around town. I only get beteewn 13.1 & 13.7 mpg. Is this a normal thing?
I bought an Airaid filter kit(200-112-1) and pick up a borla cat back exhaust used. None of this helped. I received a throttle body spacer with the air filter but havent put it on yet.
I have a crane cam(#Hr 208 294 2S 13.55) I bought used on ebay and plan on putting it in when it gets warmer out. I also plan on putting LT headers on about the same time.
The truck is my daily driver. Right now the truck cant dig its way out of its way until you hit about 3500 rpm then hang on. I've always had hopped up s10s in the past so the 5.3 is new to me.
I only get 1 ses code and its for the purge solenoid on the gas tank. It was 100.00 from the parts store. I have to drop the tank to get to the one on this truck.
Thanks for any help on my issues.