sd_iconoclast
Active Member
- Joined
- February 17, 2012
- Messages
- 91
- Reaction score
- 28
- City, State
- San Diego, CA
- Year, Model & Trim Level
- 1991 Explorer
I have a '91 EB 4x4 with about 175K mile and I just fixed a bunch of problems by replacing a head that had a burnt exhaust valve. So now the car runs pretty well except that I still have an issue with low oil pressure. After I have been driving it a while, the engine will idle at roughly 700 RPM and I will see the stock gauge (which I know is really an idiot light) flop back and forth. My aftermarket oil pressure gauge seems to confirm this by showing somewhere around 7 or 8 psi.
I have replaced the fuel pump and regulator recently and this seemed to help the idle speed. Before that, the factory gauge showed 0 all the time.
So I am thinking about trying to fix this by installing a high volume oil pump, but it looks like a big job.
Has anyone ever replaced the oil pump without pulling the engine? Maybe by unbolting the front axles?
Or is that just as big a job as pulling the engine?
I have replaced the fuel pump and regulator recently and this seemed to help the idle speed. Before that, the factory gauge showed 0 all the time.
So I am thinking about trying to fix this by installing a high volume oil pump, but it looks like a big job.
Has anyone ever replaced the oil pump without pulling the engine? Maybe by unbolting the front axles?
Or is that just as big a job as pulling the engine?