Cannot find any thread about tapping manifold
 

I have been searching through this site for an hour and cannot find an article that shows how to tap the second coolant sensor. I know how to tap it, i just need to know exactly what tap to use and were to get it. I seen somewhere that said to use a 3/8-18 but i have tried everywhere and can only find a 16 thread count.

i dropped in a 01 engine and didn't tap a new hole on my 97 the fan light never cut on run's fine

my pi swap went bad 2

I went to a ace hardware( dunno if they have those everywhere) and the 3/8- 18 was the most expensive one.

to tap it I used a 1/2 inch drill bit and tapped it from there aluminum is pretty easy to cut with those taps

Uhh, I dont think you tapped a 3/8 hole after drilling with a 1/2 bit........

ill find the bit tommorow, thinking about it 1/2 > 3/8 lol kinda feel dumb it was a masonry bit that I found laying around

Did you're npi intake have the upgraded crossover? if so just unbolt it and swap it.