This is topic Oil pressure in forum Tech Talk at Northern California Ford Owners  .


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Posted by triple b (Member # 8763) on :
 
I got some funny biz with my oil pressure....it goes down when i accelerate hard on the freeway BUT if im not moving and rev my motor it doesn't drop.....pressure is going from 50psi to about 20psi at freeway speeds when i gas it if i drive normal there is no pressure drop....rebuilt 306, about 20k on motor and oil pump, deep sump pan running mobil 1 10-30 synthetic about 8 quarts....
 
Posted by turbo50 (Member # 6700) on :
 
Id check it against another known good gauge, FIRST.
 
Posted by triple b (Member # 8763) on :
 
Yeah thx i was think thats exactly what i need another analog gauge in the engine bay
 
Posted by 89foxstang (Member # 5908) on :
 
long shot but also something to check after you verify with a known good gauge as said above would be your clearance between the bottom of the pan and your oil pickup i noticed you said that you have an aftermarket pan so its a possibility. also has this always been like this or just recently started happening?
 
Posted by FivePTSlow (Member # 7682) on :
 
quote:
Originally posted by triple b:
I got some funny biz with my oil pressure....it goes down when i accelerate hard on the freeway BUT if im not moving and rev my motor it doesn't drop.....pressure is going from 50psi to about 20psi at freeway speeds when i gas it if i drive normal there is no pressure drop....rebuilt 306, about 20k on motor and oil pump, deep sump pan running mobil 1 10-30 synthetic about 8 quarts....
Sounds like you need some n2o injected directly into your oil pump [Smile]

Kidding... anyway I'd check the connection. I had a problem like this where the wire was frayed and only had a few strands left right at the connection point
 
Posted by 93 twintrbo (Member # 10475) on :
 
I had the same symptoms right before a piece of metal lodged itself in my oil pump causing my oil pump drive shaft to snap. I dont think the oil pressure issue was related to the sudden piece of metal binding the oil pump. Upon inspection of the bottom end, it had excessive bearing clearances and I suspect it was the loose clearance that caused the oil pressure issue.

My car was a bone stock 5.0 with about 150k miles on it though. Good luck and hope your engine doesnt have the same outcome as mine did.
 
Posted by triple b (Member # 8763) on :
 
My clearence is good I checked that before I put the pan it....I dont kno but I hope it a sensor the pressure is good in the morning and when I first fire it up maybe I need to do a oil change again....bad oil filter??
 
Posted by Blind (Member # 3052) on :
 
quote:
Originally posted by triple b:
My clearence is good I checked that before I put the pan it....I dont kno but I hope it a sensor the pressure is good in the morning and when I first fire it up maybe I need to do a oil change again....bad oil filter??
oil is thicker when it's cold, so the pressure will be higher then.
 
Posted by triple b (Member # 8763) on :
 
seems to be working again oil pressure is stable now idk what caused it but hey thats a ford for ya.....Found On Road Dead
 




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