Oil Pressure
Thread Starter
|
New User
Joined: Nov 2003
Posts: 5
Likes: 0
From: OHIO
Oil Pressure
I have a 93 F150 2wd which seems to have an oil pressure problem. It runs fine for awhile then the pressure drops off. If the engine is run at higher rpm's (ie...drive, not overdrive) It picks up again. Any thoughts or comments? Oh yeah...2 diff pumps were tried. This did not start until the original pump was pulled out with around 160,000 miles. Seems strange to me!! Any help would be greatly appreciated!!!
Thread Starter
|
New User
Joined: Nov 2003
Posts: 5
Likes: 0
From: OHIO
My father in law went in with for a new oil pan, and figured w/ 160k on it, might as well replace the oil pump too. Can't say i blame him. It did not have a problem w/ pressure until after that.
Postmaster
Joined: Jun 2001
Posts: 4,496
Likes: 0
Well I would say that is weird. I would say pan to pickup clearance or the pickup itself might not be attached properly to the pump but I would think the psi would be off all the time. Symptoms of worn bearings common on older ford motors runs something like good oil psi when cold as it warms up when driving the psi drops when you idle it drops real low but picks up as you accelerate but to a low psi level. That is why my initial reaction was bearings but seems you either have a bad pump or weird timing as far as when the symptoms popped up. Good luck with it maybe someone will jump in and give you a better direction
Thread Starter
|
New User
Joined: Nov 2003
Posts: 5
Likes: 0
From: OHIO
I had my friend look at it today. We were fine until it warmed up. Then if we kept RPM's up it had fine pressure. He looked at the oil before we went anywhere and thought it to be too thin. Is it possible that this could be the problem? The manual specs 5w-30. On a high mileage engine, suppose this may be too thin? Also where is the sender located and could it be a bad sender? When the pressure drops to redline it seems to run fine. Would it not get real hot if it has no oil pressure? I appreciate your help.
Trending Topics
Post Fiend
Joined: Apr 2002
Posts: 5,964
Likes: 1
From: Woodruff, SC
If 5w-30 is what your using try a straight 30 or 40wt and see what happens. The 302 in my truck is a high mileage engine and even 10w-30 drops my oil pressure a little too much. I switched to straight 40wt and its tolerable now.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Postmaster
Joined: Jun 2001
Posts: 4,496
Likes: 0
Would you have interest in installing a mechanical guage on your engine, they aren't expensive at all? It is easy to do and would provide a more accurate reading as to how bad the psi really is. As mentioned the weight of the oil will make a difference. Hook a gauge up and post the actual psi numbers cold idle, cruising, warm idle. Then we can give you a better idea of just how bad the situation is. The sender is located to the left of the oil filter. Good luck
Thread
Thread Starter
Forum
Replies
Last Post
Thaddeus Maximus
3.0L V6
1
Mar 15, 2017 05:21 AM
NamelessUser
1987 - 1996 F150 & Larger F-Series Trucks
3
Jun 10, 2014 11:03 PM
gerald broussard
1999 - 2003 7.3L Power Stroke Diesel
5
Mar 6, 2014 08:02 PM
Luv2Fish_KC
Oil & Lubrication
2
Dec 18, 2003 01:42 PM