Go Back   F150online Forums > F-Series Trucks > 1997 - 2003 F-150
Sign in using an external account
Register Forgot Password?


1997 - 2003 F-150 SPONSORED BY:

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 05-28-2010, 02:50 PM
Member
 
Join Date: Jan 2009
Location: China Grove TX
Vehicle: 1998 Ford F 150
Posts: 33
Help Needed on 1999 5.4. Oil Sending Unit???

I am working on a 1999 F-250 with a 5.4 v8. Can anyone tell me where the oil sending unit is located? My brother in law paid some fly by night to replace his oil pump, which the fly by night said needed replacing. Well still having the low oil pressure/no oil pressure problem. I am going to hook up a manual oil pressure gauge and see what we have as far as oil pressure. Thanks. Chief Mike
Reply With Quote
  #2  
Old 05-29-2010, 03:56 AM
Senior Member
 
Join Date: Jul 2004
Location: Easton, Pa.
Vehicle: 2002 F150 super crew
Posts: 5,064
Should find it right on the oil filter to block adapter.
It's only a switch that closes it's contacts when it detects about 8 psi of oil pressure.
Common problem.
The dash gage is not a true oil pressure indication of varying pressue but just goes to a mid position when the switch closes.
Sorry he got taken for big bucks in labor and the cost of a pump and gaskets.
This should have been replaced first, just on cost alone.
All you need to do is measure for a short with a meter when the motor is running. If it is open, it's faulty.
Good luck.

Last edited by Bluegrass; 05-29-2010 at 03:58 AM.
Reply With Quote
  #3  
Old 05-29-2010, 09:00 AM
Senior Member
 
Join Date: Jun 2009
Location: earth
Vehicle: 0002 fomoco 150
Posts: 478
Quote:
Originally Posted by Bluegrass View Post
It's only a switch that closes it's contacts when it detects about 8 psi of oil pressure.

The dash gage is not a true oil pressure indication of varying pressue but just goes to a mid position when the switch closes.
really? that seems quite lame...

8psi at idle maybe, but hardly appropriate for anything but.
__________________

truck: 2002 5.4 4x4 moonroof scab lariat
audio/nav: jvc kw-nt1, alpine 1000 w pdx amps, 2 12"s, infinity speakers
wheels/tires: factory harley 20"/275 55s
suspension: belltech 3/5 drop, hotchkis sway bars
Reply With Quote
  #4  
Old 05-29-2010, 02:55 PM
glc glc is offline
Senior Member
 
Join Date: Dec 2006
Location: Joplin MO
Vehicle: 2003 Ford F150
Posts: 29,067
It's simply an idiot light that looks like a gauge.
__________________
2003 F-150 XL RCSB 2wd 4.2 M5OD 3.55 LS
Reply With Quote
Old 05-29-2010, 02:55 PM


 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


All times are GMT -4. The time now is 08:04 PM.





This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company
 
Contact Us Advertising Privacy Statement Terms of Service Jobs Forum Text Archives
Emails & Contact Details