ok i have pretty much all the mods ecept elec fan/nos
i am running about 14-15# boost put new plugs/gms cops,
truck will idle,drive just fine but when you give it too much gas not wot either not even close the truck will pull hard smooth give it any more throttle and it will stall,stumble,surge,etc when i let off the gas and try to give it gas again its the same chit but i can easy around 4 a few min and its back to normal
i think it might b the 97 fuel rail? duno
i have new fuel filter, fuel lines good, fuel pres ok, no codes

any help will be good

 

no one has any ideas Hmm..

 

My truck did almost the same thing. I had a cracked insulator on the plug. Also what plugs are you using and what gap? Below are my mods.

 

Whats your fuel pressure looking like @ idle, cruise and WOT?

Storm

 

tr6 gap .32

 

put a mech one on but didn't drive truck which thats what i need 2 do so i can put truck under load to see if there is a diff
fuel press is good at idle 32-33 rev it goes high 50s

 

Check your coil packs. My #8 pack went out about 2 weeks ago. If it is a coil pack you might want to buy the whole set someone has listed in the classifieds. Dealer charges $175 for one coil pack and this guy wants $210 shipped for 8 coil packs brand new in the box. A lot of time the boot on the coil pack will become corroded and cause the coil pack to overwork itself and burn-up. I also, burnt the tip off of my 1 week old TR6 plug (on the #8 cylinder).



Thanks,
01_White_Light

 

I was going to say coil pack.

I've gone through a few. Truck is 6 years old but only has 21k.

First time it happened, i was at a light on the highway. I got on it a bit and once I hooked i hammered it and the truck just fell over. Thought I lost the motor. Bad pack.

What are you using for a tune/chip??

 

i just put new gms cops and new plugs in and prob still there

 

tune by jdm
jim hooked his gadgets to the truck to check everything out at ffw in baton rouge but not on dyno and he said everthing was right on the money and told me to change coils/plugs so i did and that fixed most of the problem but there is still something wrong