RANT!! Sorry fellas back to the situation. Well after I turn the truck on and run for about a min or two take off the my yukon feels like it bogs or hesitates a little to go. It goes but feels like im barely accelerating, Im not flooring it but I will give it gas and is like it should be moving faster than what its doing, so I give it some more gas and its does the same, and then will start running like it should WTH!! Anyone have or run into this problem, any ideas what my prob is???? tune-up, fuel filter, dirty maf,tb?????wires, coils, etc etc?????? Tipps and advise greatly appreciated. Oh yea 00 yukon stock 5.3

 

does it have a rough idle, and how many miles are on it? It sounds like you may have some leaky intake gaskets (lean condition).

 

no idles just fine no noise or nothing, it has about 140k on it. As far as I know it looks like the factory coils posibly wires as well. Im sure the plugs could have been changed before but not sure how long ago. If I was to do a tune up what plugs and wires should I use. And will the coils and bracket work from a 01+ on my truck, will the connection plug into mine?????????

 

Fuel pump?

 

Was it OK before you changed the intake?

 

I have never changed the intake, I'm not sure if the previous owner has though

 

When was the last time that you changed the fuel filter?

 

Sorry, that was the impression I got based on your other thread.
https://www.performancetrucks.net/fo...d.php?t=465486

 

Hmmmm, I have never. Ill have to buy one a day this week. I was also thinking about changing the plugs, any certain ones I should get

 

AC Delco's plugs.