I'd think that you would have heard something sooner...how long has it been?

 

6000 miles of nealson trying to find the false knock problem. i was just hoping i had found the problem. but the motor has always had a very quite valve train.

 

Do you know if Nelson tried flashing in an 01+ operating system? The 99-00 PCM's are prone to false knock, especially once an aftermarket cam is installed. I went through this with my truck after my cam swap, and as you can see in my sig I have a very mild cam. I swapped in an 02 PCM and that cured my false knock problems. Since then, tuners have learned that you don't need the whole PCM, but can just flash the newer OS in. I'd think that Nelson is aware of this but you never know, anybody can overlook something.

If that nut was left loose from the get go, it would have given you problems sooner, including noise and a possible misfire as it quickly worked itself off.

 

got the 02 pcm already. but i guess it was just a faulty nut. hopefully none of the others are in the same condition.

 

i will never use anything from comp again.

 

why do you say that EVILGMC?

 

lifter failure left a not so sweet taste in my mouth....and a personal grudge. no comp, no edelbrock, no lingenfelter. ill take a beer, though.

 

i see.

 

Yea, seems like Comp should stick to cams, everything else they make seems to break...springs, lifters, rockers. I don't remember hearing about this many product failures from them 20 years ago...

The TrickFlow cam that I'm planning to get is ground by Comp...if I start hearing about flattened lobes I'm totally giving up on them

 

did your newest visit with him ever cure your problems? imo this would definitely cause your false knock problems and poor performance if it didnt.