i have the basic sts kit on 2002 silverado 5.3 the truck only has 30,000 miles and 2,000 with the turbo. and now i look at my driveway every mornin and theirs a leak. i think its coming from the oil return, at the top where it connects to the oil cap. and also the silcone sleeve from the throtle body to the pipe sucks in when opened at wot. also i get a load knocking at wot. n e clues that can help me out guys thanx?

 

Sounds to me like you have a few issues....but the knocking would be my number one concern....how did you calibrate the PCM?

 

get that thing tuned or retuned before you blow it up or fry some pistons

 

the truck was tuned at the shop where the install was done at. but its the diablo preditor tune. i dont think its really good what should i do? its a weird noise only at wot. its sounds like something is loose and knocking but only at high rpms. what are my options?

 

PM me for the name of a tuner in the San Fernando Valley.

 

brians got it covered

 

ok thanx for the help i just want this thing to run safe and not blow. but today my check engine light when on and multiple cylinders are misfireing now what the heck do i do. what could of caused that ?

 

The oil leak sounds like it is the little yellow o-ring inside the quick connect. Look down inside the coupler and the o-ring is most likely smashed or torn. When you disconnect the QD from the oil cap a few too many times it tends to destroy the o-ring. I have seen these leak before. It comes right out of the middle of the QD. Actually I believe that the original yellow o-ring is more squared but I have used a yellow o-ring from a fuel rail rebuild kit. That seems to be the correct size.

 

On the 90 degree elbow you can either call STS and they make a stiffer elbow now or put a hose clamp around the center section of the elbow right where it sucks in and tighten it only until it just starts to collapse the hose. Just a few suggestions on the lesser important issues. I hope the knocking sound wasn't anything major.

 

Great suggestions, welcome to the site!