1991 Ford E350 460 Engine Oil Pump Issues - Diagnosis Help
Somewhere between last month's slightly low oil pressure reading on my '91 Ford E350 460 engine and today's complete engine knocking, I'm thinking this oil pump is finally dying.
Here's the weird part - oil pressure gauge sits really low (like concerningly low) but the temp gauge never even hits the middle, stays cool as a cucumber. She runs like a total champ though, starts every time, smooth as butter, pulls hills no problem. Just hit 99k miles and put about 7k on her this year with zero issues performance-wise.
Everything I'm reading online says oil pump problems usually show up as low pressure AND high temps together. But I've got low pressure with low temps, which seems backwards? Had one moment recently where the oil pressure suddenly jumped to normal mid-range after smelling some hot oil at a gas stop. Is this actually pointing to oil pump failure, or am I maybe looking at faulty gauges or sending units instead? …more
Here's the weird part - oil pressure gauge sits really low (like concerningly low) but the temp gauge never even hits the middle, stays cool as a cucumber. She runs like a total champ though, starts every time, smooth as butter, pulls hills no problem. Just hit 99k miles and put about 7k on her this year with zero issues performance-wise.
Everything I'm reading online says oil pump problems usually show up as low pressure AND high temps together. But I've got low pressure with low temps, which seems backwards? Had one moment recently where the oil pressure suddenly jumped to normal mid-range after smelling some hot oil at a gas stop. Is this actually pointing to oil pump failure, or am I maybe looking at faulty gauges or sending units instead? …more
