Oil pressure problem - DodgeForum.com

Go Back   DodgeForum.com > Dodge Trucks > Dodge Ram > Dodge/Ram Diesel
Log In 

Dodge/Ram Diesel Discussions on all generations of Cummins Diesel powered Rams plus the new Eco Diesel

Oil pressure problem

Thread Tools Search this Thread
Old 03-19-2009, 11:00 PM
Fishguy50 Fishguy50 is offline
Registered User
Join Date: Oct 2008
Posts: 3
Default Oil pressure problem

05 having oil pressure problem. Usually runs around 50Lbs cold 15 warmed up. After the engine warms up, and I come to a stop-First the check guage's warning light/bell go's off, then approx. 2 seconds later the oil pressure guage plummets from 15Lbs to zero. A very slight increase in RPM from idle bring's the guage rapidly back to 15Lbs. I have checked oil level repeatedly, and changed filter(after recent oil/filter change). I don't want to replace the oil pressure sender without more input. Thank you for any help you can give.
Reply With Quote
Old 03-20-2009, 01:56 AM
rabbler rabbler is offline
Record Breaker
Join Date: Jul 2007
Posts: 1,488

Remove the oil sending unit and install a test guage.
That will atleast tell you if it's a mechanical problem.
Get this checked out fast!
Got any warranty left?

There is also a TSB that applies for your condition
Models: 2007 (D1/DH/DR) Ram Truck

This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software.

The following enhancements are included with this software:

Improved engine cooling (radiator fan activation) and prevention of possible engine
overheat. When coolant temperature faults are present the radiator fan is enabled
(turned on) during vehicle operation.
Correction to oil pressure reading when engine is operating at higher engine
temperatures above 91C (195F).
Improvement to the Temperature Sensor Rationality Test to prevent possible false
test failures and their following related Diagnostic Trouble Codes (DTC's):
a. DTC P0071 - Inlet Air Temperature Sensor Rationality.
b. DTC P0111 - Intake Air Temperature (IAT) Sensor Rationality.
c. DTC P0514 - Battery Temperature Sensor Rationality.
Additional Water-in-Fuel (WIF) warning added to indicate that the operator has had a
WIF DTC P2269 and has continued to operate (drive) the vehicle in excess of 500
miles without draining the water from the fuel filter. The following is the new WIF DTC
that has been added:
a. DTC P0169 - WIF Too Long Error
**Improvement to the Fuel Pressure Rationality Test to prevent possible false test failures and the following related Diagnostic Trouble Code:
a. DTC P0191 - Fuel Rail Pressure Sensor Circuit Performance (2004.5 to 2005 M.Y. vehicles).**
97 Ram Sport ext 4x4, 5.9L gas, 3" pro comp lift w dual shocks, 3:55 trac lock
Lt305/70R16 Kumho KL-78, K&N FIPK, Mopar Performance wires and cap, Stainless shorty headers, Walker exhaust. All syn lubes. Sirius sat radio! Magellan GPS
2003 Grand Caravan Sport. 3.3L No toys in it. Nobody's cool in a Minivan...
Reply With Quote
Old 03-23-2009, 08:11 PM
Fishguy50 Fishguy50 is offline
Registered User
Join Date: Oct 2008
Posts: 3

The update on the oil pressure problem is... A local mechanic has ran the truck with a mechanical oil pressure guage. It appears that the oil pressure problem is atleast partially mechanical in nature.Oil pressure dropped as low as 6lb on mecanical guage. I have worked in automotive machine shop's in the past and am fully aware that bearing clearances are a common cause of low oil pressure. It is my hope that possibly replacing the oil pump might fix my problem. It was also mentioned that some type of oil pressure relief valve might be the problem. If anyone is wondering if I am trying to avoid the dealer the answer is yes!. Is there a good book that is dedicated to the cummins ISB diesel?. Thanks again for any helpful input.

Last edited by Fishguy50; 03-23-2009 at 08:33 PM.
Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
dislike Sherwood Park Dodge pamela24 Dodge Caravan 6 10-21-2015 05:33 AM
1994 5.9L gas has spark and fuel but won't start herche54 2nd Gen Ram Tech 13 07-17-2015 04:38 PM
2007 6.7 dodge 3500 problem johncrawford1 Dodge/Ram Diesel 0 07-14-2015 10:08 AM
46re transmission eagle101 2nd Gen Ram Tech 2 07-12-2015 10:43 AM
NEED help with my dodge have 2 problems I can't figure out 0_7_hemi 3rd Gen Ram Tech 7 07-09-2015 01:38 PM

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 -4. The time now is 01:36 PM.