oil pressure question

Reply Subscribe

Thread Tools

Search this Thread

May 7, 2004 | 12:30 PM

#16

79F150400M

Fleet Mechanic

Joined: Feb 2004

Posts: 1,508

Likes: 332

From: Arlington,Wa

I'm with Ecuri...I have noticed the same behavior in regards to oil pressure, and I use 10/40 year round here in the Great Northwest. Also have an IVR issue cuz i have more than 2 guages fluctuating. Really freaks me out when i see ALL my needles climbing to the right!!!!! But I give her a good whack on the dash and viola...they all go back to where they belong. Go figure.

May 7, 2004 | 12:52 PM

#17

ranchero77

Senior User

Joined: Oct 2003

Posts: 347

Likes: 0

From: in a house

there is always a bunch of possiblities for the same symtoms and always room for one more.
the best point I see here is the fluctuating of the 2 gauges. if your oil pressure is rising at a stop or low rpm you really should address the electric system of the gauge cluster and sending units.
to add to your temp issue you can use the higher flow thermostat of the same degree rating. you'll have the same operating temp cruising but the engine shouldn't reach such a high temp and will take longer to overheat sitting in traffic.
as far as oil goes I run the 15w50 Castrol, the perfect bowl of porridge.

May 7, 2004 | 12:55 PM

#18

ranchero77

Senior User

Joined: Oct 2003

Posts: 347

Likes: 0

From: in a house

good to hear.
looks like I typed too long on that one.

May 7, 2004 | 02:01 PM

#19

scroob

Elder User

Joined: Sep 2003

Posts: 908

Likes: 4

I wouldn't trust the in dash oil pressure gauge to start with. Install a good mechanical gauge so you know what the oil pressure really is, and then go from there.

Electric fans will not cool as well as the factory fan unless they are high CFM units with the proper shrouding. The factory fan with the proper shroud moves over 3000 CFM at idle.

Putting an electric fan on while the factory fan is still installed (I thought that's what I read above) does nothing to help cooling. There is no way it can add to the cooling capacity since it doesn't move as much air as the factory fan. What it amounts to is a restriction and it's actually hurting your cooling.

May 7, 2004 | 08:31 PM

#20

KenB

Elder User

Joined: Apr 2004

Posts: 545

Likes: 1

From: Shreveport, La.

I believe, if you really have to have an electric fan in addition to OE, the only real time it will help is when setting dead still in traffic.

In general, electrics on trucks aren't meant as primaries. To get one that would do the job by itself, it would be really big and REALLY loud.

May 7, 2004 | 09:31 PM

#21

fatherdoug

More Turbo

Joined: Mar 2002

Posts: 606

Likes: 3

From: Colstrip, MT

Ranchero77, Explain to me the concept of high flow thermostats. I am unfamiliar with these. Tell me more.

May 10, 2004 | 01:53 PM

#22

matt77F2504x4

Thread Starter

Elder User

Joined: May 2004

Posts: 544

Likes: 0

thank you to everyone who helped with my oil situation. happy to report that after switching to 10/30 my oil pressure gauge acts l;ike it should (high when cold midway when hot)

May 10, 2004 | 02:15 PM

#23

matt77F2504x4

Thread Starter

Elder User

Joined: May 2004

Posts: 544

Likes: 0

hey fatherdoug, a hig flow thermostat is designed to work with a high flow water pump
(mostly for race) a stock thermostat will actually be impeded by the high flow of the more powerful pump. i dont know if they help provide more cooling witha stock pump or not . i would be interested to know if anyone out there is running one and how it works. hope this info helps.
matt