Blinking Oil Pressure Light - Saab NG900 & OG9-3 Bulletin Board -

[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Performance | Detail | Clubs & SOC | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Service/Mechs | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

NG900 & OG93 Bulletin Board
1994-2002 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main NG900 & OG93 Bulletin Board | Post Followup | BBFAQ ] [ Prev by Date ] [ Next by Date ] Member Login / Signup [Latest Member Gallery Photos]
Blinking Oil Pressure Light
Like This Post:
Posted by thetallguy [Email] (#1698) [Profile/Gallery] (more from thetallguy) on Thu, 31 Oct 2019 18:47:18 Share Post by Email
Alert me when someone posts in this thread:

I wished to communicate my experience with low oil pressure in my daughter's Viggen clone. It is a 2003 2.0 convertible.It has the silver valve cover designating the newer style Evap system. In the beginning of 2019, her car had `150K miles and no issues with the oil pressure light. Because of the mileage, I pulled the sump and replaced the oil pick up screen (I used an air mass screen off the 900 classic-perfect fit/larger mesh). I also cleaned up the sump and replaced all seals including those that seal the oil cooler lines. Prior to this job I had replaced the oil pump seals. I considered the job well done until she called me four months later with the report of the oil light blinking when she went around a certain curve. This was very annoying because the sump job is big and we had always used fully synthetic oil at correct intervals from 90K. I had pulled the head at 90K; it did show a little evidence of sludging-I cleaned it up, reinstalled it, and six years later everything appeared good. So...what to do? There was an additional symptom with the engine-the hydraulic cam lifters were ticking.

My first order of business was to check the cam bolt oil passages. They were somewhat fouled so I expected an improvement after cleaning. Unfortunately, although the passages were partially blocked on about 6 of the lifters the cleaning did not resolve the cam lifter noise. I pulled the sump-perfectly clean and by that I mean spotless.Because no smoking gun was found here, I pulled the oil pressure valve. The plunger had one scratch but a comparison of the old pressure valve and the new one showed the old to be about 1/8 of an inch shorter than the new. I installed the new oil pressure valve, put every thing back together with new seals, and started the car. The lifter noise was gone from start up. I then drove the piss out of the car for about a month covering 2K miles. No issues. It's all good now. My suggestion: when doing the sump/re-screening repair check both the cam bolt oil passage ways and the oil pressure valve-specifically the plunger and the spring length.

->Posting last edited on Thu, 31 Oct 2019 18:51:43.
Posts in this Thread:
Alert me when someone posts in this thread:

Post a Followup

No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.

Name: Member Login / Signup [Latest Member Gallery Photos]
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.


Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img][endimg] (or use the Optional Image Link field below).

Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img][endimg] (or use the Optional Image Link field below).

Optional Link: (e.g.
Link Title: (Optional)
Optional Photo/Image Link: (e.g.
Photo/Image to Upload: [Member Only Feature] - Sign Up

The content on this site may not be republished without permission. Copyright © 1988-2020 - The Saab Network -
For usage guidelines, see the Mission and Purpose Page.
[Contact | Site Map | on Facebook | on Twitter | Shop Amazon via TSN | Site Donations]

This is a moderated bulletin board - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. has been a moderated forum since 1988. For usage guidelines, see the Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP -
Your address is: - Using CCBot/2.0 ( - Logged.

Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all the Site Membership Benefits!