Low oil pressure

[Syboy]

Driving home the other week the check gauge light flashes as I pull to the light. I look at oil pressure gauge it is at a 1/4 and pull into the gas station. I check the oil and it is full.

Add gas then turn on the engine and the oil light is out. Still worry but an hour away from home.

Oil light is out when it cold as the oil gauge is at 3/4 mark. At 2500-3000 rpm the oil gauge is 1/2 mark when hot and now is 1/4 mark when at traffic light.

It just happen again yesterday after about an hour drive. Change oil pressure sensor.

I just read the thread about oil pumps. I don't know which oil pump I have as the engine was replace by GM under warranty in 96.

I bought and Proform oil filter cutter 66490 to cut open the oil filter to see if there is any damage.

Which oil pump should I buy if no metal is found in the oil filter.

This could be very costly to build another engine and turbo.

 

[jjorgensen52]

Re: Low oil pressure

Driving home the other week the check gauge light flashes as I pull to the light. I look at oil pressure gauge it is at a 1/4 and pull into the gas station. I check the oil and it is full.

Add gas then turn on the engine and the oil light is out. Still worry but an hour away from home.

Oil light is out when it cold as the oil gauge is at 3/4 mark. At 2500-3000 rpm the oil gauge is 1/2 mark when hot and now is 1/4 mark when at traffic light.

It just happen again yesterday after about an hour drive. Change oil pressure sensor.

I just read the thread about oil pumps. I don't know which oil pump I have as the engine was replace by GM under warranty in 96.

I bought and Proform oil filter cutter 66490 to cut open the oil filter to see if there is any damage.

Which oil pump should I buy if no metal is found in the oil filter.

This could be very costly to build another engine and turbo.

This sounds very similar to what my truck has started doing just recently. I have the melling pump, but I haven't lost it completely yet. Going to be dropping the pan in the next few weeks, hopefully. From what I understand, the older melling casting is the one to get

 

[cameronsclone]

Re: Low oil pressure

Happened to me too, i'd add a quart of oil a month but it'd go down and would bounce off zero when stopping or something. Turns out I spun a bearing. Don't know what oil pump i have though.