Welcome to the North American Subaru Impreza Owners Club Thursday February 22, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 01-15-2007, 12:55 PM   #1
Scooby Specialist
Member#: 20999
Join Date: Jul 2002
Chapter/Region: NESIC
Location: NJ
2002 PSM WRX Stg 2
knee - Aw - teh - rix

Default Intermittent Oil Pressure Light woes

I just got my car back from the Subaru dealership, and it turns out I had a busted coolant hose.

[disaster history here: http://forums.nasioc.com/forums/show...php?t=1172158]

Everything seems to be running alright, and I made the drive back to Boston without incident. The only cause for concern at the moment though is that the oil pressure light lights up when the car has been sitting for a while, especially in cold weather it seems. After several minutes of idling once the engine temps seem to warm up to normal operating temperatures, the light fades away.

This was clearly not something that occurred prior to the highway disaster. Is this a damaged sensor? Another problem? Cause to call up the dealership and have them make things right?
* Registered users of the site do not see these ads.
NeoteriX is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-15-2007, 05:35 PM   #2
Scooby Specialist
Member#: 74321
Join Date: Nov 2004
Chapter/Region: MWSOC
Location: clarksville AR
2004 wrx wag
black UTEC stg 4


It would not be a bad idea to return the vehicle to the dealer and have it checked. if the engine was overheated, you may have caused some damage to the lower end, and then it may only be a bad electrical connection, or sender unit. Ether way I don't like to ignore a oil pressure warning lamp. It needs to be checked out.
crampfan is offline   Reply With Quote
Old 01-16-2007, 03:34 AM   #3
Scooby Newbie
Member#: 19541
Join Date: Jun 2002
Chapter/Region: SCIC
Location: Tustin, CA

I have the same prob.

After my coolant hose busted ( the one near the alternator, where the oil pressure sensor is located) the oil light will be on very dim during wet weather or in the morning. It usually goes away after five minutes of operation. My oil level is fine. In the current weather, I have not seen it in the last month.

I have been told that to fix the prob you have to pull out the sensor and clean it.

I would not worry about any damage to the car, I read that the oil pressure light has only two modes of operation, fully on or fully off, with it being dim, it has to a short in the system.
Hamzor is offline   Reply With Quote
Old 01-16-2007, 12:45 PM   #4
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


The oil pressure warning light is an LED. It only takes a small amount of leakage current to make it light up dimly, since you had a coolant leak there is probably some conductive residue left behind that is providing a ground path for the light. This can probably be fixed by disconnecting the sensor and cleaning the sensor, plug, and surrounding area.
Mulder is offline   Reply With Quote
Old 07-19-2008, 03:56 AM   #5
Scooby Specialist
Member#: 43712
Join Date: Sep 2003
Chapter/Region: South East
Location: Nashville, TN
60's B-52H


Bump, good to know Mulder, just had my car towed back to my house because of coolant leak of some kind, not sure where but appears to be coming from the hose that goes into the reservoir tank. Had coolant all over the crank pulley and surrounding areas, followed by a very dim oil pressure lamp. I shut it down right away and had it towed, but this makes me feel a ton better. I am going to drain the oil and coolant when i get back up this morning and see what i find.

Where is the oil pressure sending unit on the EJ205?
Synx is offline   Reply With Quote

Thread Tools
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
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Very Dim Oil pressure light scotia Electrical & Lighting 5 12-05-2015 08:50 AM
Oil pressure light esomday Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 25 06-07-2007 10:31 AM
leaking coolant and oil pressure light lighting up rayman481 Service & Maintenance 2 09-02-2004 07:24 PM
Oil pressure light comes on for a split second WS6toWRX Service & Maintenance 12 02-06-2004 03:47 PM
Oil pressure light on, need opinions Keiho Normally Aspirated Powertrain 12 02-24-2001 08:08 PM

All times are GMT -4. The time now is 01:21 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.