2006 Silverado 170,000 5.3 I didn't reliazed my oil gauge at 40 psi didn't go 60/80 psi when you full throttle in drive. Any idea cause. I check oil level good. Oil sensor bad?

 

cant really tell what your asking... but before I had the cam swap done on my truck, it would be 60-65psi cold, then come down to about 50-55psi warm idle, then usually 60psi while driving and around 65-70psi when WOT.

Since the cam swap with new oil pump, cold or warm idle is 35-45psi, about 50psi driving, and goes up to about 65psi WOT.

 

It may ckuster went bad? Other day. My oil pressure finally show read correctly always 50-60 psi drive 60+ mph. Floor it 80 psi. Or my oil is to thin since I run 5w30 sythenic royal purple. Outside is about 25 degree cold is normal for oil pressure been stay 40-45 floor it 45 psi that it. When it get hot would show oil more pressure. I not sure if it's normal. Or just bad cluster or oil pressure sender

 

your oil pressure is fine.

 

It work fine. Guess it is just to cold outside since my oil is sythenic 5w-30 would be make sense?