I'd run a few tankfuls of gas using Chevron's Techron concentrate additive. If it's carbon build up, that should help to break it up. Have you tried to see if any codes have popped up?

 

No I haven't seen any type of codes can I get the chevrons techron at any autoparts store what about seafoam?

 

No I haven't seen any type of codes can I get the chevrons techron at any autoparts store what about seafoam?

 

Both work, but if you use as an additive, I'd use Techron. Using seafoam through a vacuum port is effective, but if you have really bad deposits, I'd try Techron in the fuel system first. You should be able to find either at a autoparts store.

 

Ok thanks ill run it through a couple tank fulls

 

haha good deal

 

Well guys I went to buy some of that chevron with techron and I was reading about it and it said add on a almost empty tank well that morning I filled the truck up so ill have to wait to add that so I was looking around and seen mass air flow sensor cleaner I said hummmm new jlt intake maybe sensor was dirty so I bought that got home took the maf out and dang it was dirty new filter new oil so the maf had a built up on there cleaned the puppy up and wow what a difference doesn't pop any more and runs even harder then it used to thanks guys but I will be trying adding the chevron also

 

Proubley wouldnt hurt to change the plugs & fule filter.

 

Well guys I went to buy some of that chevron with techron and I was reading about it and it said add on a almost empty tank well that morning I filled the truck up so ill have to wait to add that so I was looking around and seen mass air flow sensor cleaner I said hummmm new jlt intake maybe sensor was dirty so I bought that got home took the maf out and dang it was dirty new filter new oil so the maf had a built up on there cleaned the puppy up and wow what a difference doesn't pop any more and runs even harder then it used to thanks guys but I will be trying adding the chevron also

 

Plugs are next and just did fuel filter last weekend

 

What it sounds like is if you are at hwy speeds and it is doing this when you floor it then the torque limiting in in effect for when it down shifts to 2nd to save the transmission. mine use to do this all the time. to stop it you need to tap overdrive off then floor it and it shouldnt happen. This is done to save the tranny from the dreaded OD to 2nd down shift. if I am below 70 I alwyas hit the OD off before I nail it

 

so when i get ready to get on it just hit the od buttom and then hammer it ill try that thanks im really wanting to get rid of the sct tuner and jlt intake cause im really wanting to do the roush non intercooled supercharger

 

Ya my truck drove me nuts because I thought something was wrong but TP told me that it was in the tune to save the transmission. Guess it works because I just rolled over 109K and she aint babied.

 

ok sweet so basically its defueling the truck so it can down shift then once it downshifts it starts refueling it