Low Oil Pressure At Idle?
#1
#2
#3
Did you do the oil pressure switch/gauge mod? You gauge shouldn't move at all since it isn't a real gauge. It only has two indications that work, zero and middle. It doesn't have a pressure sensor. It is only a switch that comes on a certain PSI and makes the needs show normal. If you are getting fluctuating reading other than middle or off, you probably have a gauge problem.
#4
I have an aftermarket guage. I dont know how good the reading is I have had the gauges about a year. I noticed the drop when I changed to Penzoil Platinum but since have switched back to Mobil 1 and it has not gone back up. Could the Cam Sync have anything to do with it cause I think thats what caused my old engine to lock up.
BTW: This is my second engine
BTW: This is my second engine
Last edited by Roach2004; 09-06-2008 at 08:23 AM.
#6
One other thing just came to mind.
Has the engine been overheated much ?
If the problem is low pressure throughout the RPM range , you may have sludge built up in the return oil ports causing oil starvation at the pump.The oil is staying in the top of the engine and not returning to the sump fast enough.
Does the guage fluctuate when driving ?
Has the engine been overheated much ?
If the problem is low pressure throughout the RPM range , you may have sludge built up in the return oil ports causing oil starvation at the pump.The oil is staying in the top of the engine and not returning to the sump fast enough.
Does the guage fluctuate when driving ?
#7
#12
My 3.0 has like 60 PSI at 3000 RPM and like 18-20 at Idle. So yeah, Id say thats a tad low, but not really low enough to worry about. I'd just keep an eye on it. The general rule of thumb is to have at least 10 PSI for every 1000 RPMs, so you need 10 PSI at 1000 RPM, and 30 PSI at 3000 RPM.
#13
#14
What kind of oil filter did you use? Frams have been known to cause oil pressure problems, I installed one on my Volvo 1800E years ago in a pinch, and the oil pressure dropped to 1/2 of what it normally ran. Intalled a Volvo
filter (which I normally use) and the pressure went back to where it normally run.
I'm a believer in using the MFG filters, Volvo on my Volvo, Mann (German OEM Mercedes) on my Mercedes, and Mototcraft on my Fords.....
filter (which I normally use) and the pressure went back to where it normally run.
I'm a believer in using the MFG filters, Volvo on my Volvo, Mann (German OEM Mercedes) on my Mercedes, and Mototcraft on my Fords.....
#17
Just like Motorcraft spark plugs, there is a separate part number for 2.3L, 3.0L, and 4.0L Ranger engines. In the case of Bosch, NGK, or Denso, there is
only 1 part number called out for all three engines. So, with the Motorcraft, your getting an optimized heat range plug.
Thread
Thread Starter
Forum
Replies
Last Post
FRXLT
2.9L & 3.0L V6 Tech
29
01-31-2012 10:05 AM
justinkeoughan
4.0L OHV & SOHC V6 Tech
9
03-25-2010 05:47 PM