Oil pressure issue
I had an issue with my oil pressure this morning, Here are the specifics.
2004 Silverado, 2500HD (78,000 Miles), 4X4, Crew Cab, Duramax (LB7), Allison.
This is long winded so bear with me.
It was chilly this morning around 19F. I started the truck and the oil pressure was normal for a cold weather start (80). But a couple of miles down the road I noticed it had went into the red, and down to Zero as I let off the gas, but would briefly reach 20 if I accelerated.
I never once got a check engine light or low pressure chime . I pulled over to make sure I had oil (it was full), and didn't blow a filter (it didn't). I turned around went home and shut it down. When I started it back up everything was normal. I did not get faulty readings from any other gauges.
Any ideas guys? I suspect a gauge. I'm taking it to the dealer today.