Testing Oil Pressure Sending Unit - Ford Truck Enthusiasts Forums

2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 engine

Testing Oil Pressure Sending Unit

LinkBack Thread Tools Search this Thread
Old 06-30-2014, 06:52 PM
powells_f150 powells_f150 is offline
New User
Thread Starter
Join Date: Apr 2006
Posts: 8
powells_f150 is gaining momentum as a positive member of FTE.
Testing Oil Pressure Sending Unit

Working with Autometer to fix a problem where my oil pressure gauge is reading to high at times, we've got it narrowed down to the sending unit. Since I couldn't find this information elsewhere, I wanted to share what their tech told me for troubleshooting the sending unit.

To check the sending unit, measure the resistance across from terminal to ground with the sending unit disconnected from the gauge. Below are the readings you should find.

0 psi 242 ohms +/- 17
25 psi 152 ohms +/- 12
50 psi 103 ohms +/- 10
75 psi 66 ohms +/- 9
100 psi 30.5 ohms +/- 5.5

Hope this helps in troubleshooting a sending unit problem.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Help finding sending unit/gas gauge that are compatible. ford5.8 1948 - 1956 F1, F100 & Larger F-Series Trucks 5 10-19-2016 07:18 PM
56 gas gauge, help an idiot . DR Smith 1948 - 1956 F1, F100 & Larger F-Series Trucks 24 06-13-2014 04:36 PM
Installing autometer fuel gauge BigRobK 1967 - 1972 F-100 & Larger F-Series Trucks 5 06-11-2013 12:26 AM
Oil Sending Unit and Idiot Light RaleighDad66 1961 - 1966 F-100 & Larger F-Series Trucks 11 11-20-2009 04:51 PM
Fuel gauge problem rdw516 1987 - 1996 F150 & Larger F-Series Trucks 1 03-26-2005 04:10 PM

Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Pingbacks are On
Refbacks are On

Forum Jump

All times are GMT -5. The time now is 07:25 AM.

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.