oil pressure problem
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Junior Member
Joined: Feb 2009
Posts: 12
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From: South texas
oil pressure problem
1996 F150 5.8 auto 4x4
My newest problem is that sometimes on a cold start the oil pressure guage reads...well, nothing. After about half a mile, the guage reads normal pressure. The longest its ever taken to show pressure is about 2 miles. It doesn't gradually climb or fluctuate, its either all or nothing. The oil level is fine. I hope its the oil sending unit and not the oil pump. Any thoughts? Is the oil pump difficult to change out? Any help will be appreciated.
My newest problem is that sometimes on a cold start the oil pressure guage reads...well, nothing. After about half a mile, the guage reads normal pressure. The longest its ever taken to show pressure is about 2 miles. It doesn't gradually climb or fluctuate, its either all or nothing. The oil level is fine. I hope its the oil sending unit and not the oil pump. Any thoughts? Is the oil pump difficult to change out? Any help will be appreciated.
Member
Joined: Feb 2009
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The oil pump is a fairly simple process to replace, however it does require removal of the oil pan, which can be tricky with the engine still in the truck 
If you don't hear any clattering from lack of oil in your engine until the gauge starts reading, I would suggest it's either the sending unit, or POSSIBLY the gauge. The sending unit is $5 at your local parts store, and it's located right next to the oil filter.
If you don't hear any clattering from lack of oil in your engine until the gauge starts reading, I would suggest it's either the sending unit, or POSSIBLY the gauge. The sending unit is $5 at your local parts store, and it's located right next to the oil filter.
