oil pan
New User
Joined: Jun 2002
Posts: 4
Likes: 0
From: Marlborough USA
oil pan
This is a just a friendly post for anyone changing an oil pan. I have a 1991 Ford F-150 with a straight 6 (4.9L) engine. The book said to do alot more than I actualy had to. I loosened the engine mounts, loosened the EGR valve,and loosened the tranny mount. I then jacked up the tranny and the engine as high as they would go. It then took a little force but the pan slid right out. That was it. I did not take off the radiator or the oil scren inside the pan. I did take off the starter though to make it easier to get to the bolts but it was not necessary. That's it. Hope it helps.
New User
Joined: Mar 2001
Posts: 6
Likes: 0
oil pan
I have a 93 F150 5 speed, 4X2 and just changed my oil pan, pump and filter . Since then, (2 weeks ago) I've driven it 4 miles and lost all oil pressure and had to have it towed home. After changing the filter again, my oil pressure is fluctuating wildly, mostly sitting on 0 after running for a few minutes with pulses to the normal range. Have you had any trouble like this???
The truck has 312,000 miles and I have always used pure synthetic oil. Since the new pan, pump and filter, I put in just Pennzoil 10w30.
Reply appreciated and thanks.
Blaine
The truck has 312,000 miles and I have always used pure synthetic oil. Since the new pan, pump and filter, I put in just Pennzoil 10w30.
Reply appreciated and thanks.
Blaine
Posting Guru
Joined: Dec 2001
Posts: 2,017
Likes: 2
From: Southeast FLA
oil pan
I'm not sure if a Ford-style oil pump would hae that problem, but my co-worker installed an oil pump in his chevy, and the brand new oil pump (aftermarket) was faulty. So it does happen, and it might be a priming problem with yours(?).
If you only changed the filter to another average filter, you could try something like a Purolator Pure 1, Mobil 1 or Amsoil with nice anti-drainback valves - these might help keep the prime if that's your problem.
But I'd consider changing the oil pump again (after checking the oil guage's connection and/or line really well).
If you only changed the filter to another average filter, you could try something like a Purolator Pure 1, Mobil 1 or Amsoil with nice anti-drainback valves - these might help keep the prime if that's your problem.
But I'd consider changing the oil pump again (after checking the oil guage's connection and/or line really well).
Elder User
Joined: Jun 2002
Posts: 519
Likes: 0
From: CT
oil pan
On my 302 I replaced the pan gasket and oil pump. I to ended up with
no oil pressure. Actually it was the oil sending unit wire. When I
lifted the motor the connector lost continuity. Recrimping the connector onto the sending unit fixed the faulty gauge reading(on not off).
Did your Ford pump come with a set of gaskets? On my (88) 302 the Ford parts rep said there was only one. It goes between the pickup and pump inlet.Reps words "Gasket was not required for the pump to lower half". The clevite pump I purchased had a gasket for the pump-block I used it - maybe it would suck air maybe not.
Unless a passage is now partially blocked -(exit pump-gasket covering pump exit or restricting). I'd start with the sending unit. Also
try an analog gauge(dial) to see what the pressure is.
Good luck
no oil pressure. Actually it was the oil sending unit wire. When I
lifted the motor the connector lost continuity. Recrimping the connector onto the sending unit fixed the faulty gauge reading(on not off).
Did your Ford pump come with a set of gaskets? On my (88) 302 the Ford parts rep said there was only one. It goes between the pickup and pump inlet.Reps words "Gasket was not required for the pump to lower half". The clevite pump I purchased had a gasket for the pump-block I used it - maybe it would suck air maybe not.
Unless a passage is now partially blocked -(exit pump-gasket covering pump exit or restricting). I'd start with the sending unit. Also
try an analog gauge(dial) to see what the pressure is.
Good luck
