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

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
Oil Sending Unit and Idiot Light RaleighDad66 1961 - 1966 F-100 & Larger F-Series Trucks 15 01-03-2017 09:46 PM
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
Aftermaket Sending unit bradphx 1973 - 1979 F-100 & Larger F-Series Trucks 7 09-26-2016 01:43 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

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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -5. The time now is 06:36 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.