its has around 40lbs at idle 2 or 3 lbs the engine has 125000 mile on it very will takin care of
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1997 Ford F-150 Question: what would cause the oil pressure to drop very low when the engine idles running
Answer #1pushrod December 28, 2012, 22:07Master
More info. on truck 97 F-150 aint enough! 5 engine possibilities, oil sae, what brand of filter. Is this a new problem?
Are you checking it with an actual test gauge?
Replyrobooney1, December 29, 2012, 09:09Rookie
Sorry its a 4.2 V6 Tried Changing the Filter and Oil I Use a 10/30 Quakerstate
Replypushrod, December 29, 2012, 09:16Master
That's ok noboy gives enough info. How are you testing the pressure?
Replyrobooney1, December 29, 2012, 21:34Rookie
remove the sending unit and installed a manual gauge sound like I can hear a knock like main bearings?
Answer #2goodguy December 29, 2012, 06:42Master
I agree with wetry its hard enough to figure out problems if we dont have enough info
Replypushrod, December 29, 2012, 07:05Master
Replygoodguy, December 30, 2012, 05:42Master
if you have knock then your oil pump might be gone you should get it checked before the engine blows