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Date: Sun, 02 Jun 2002 09:57:49 +0100
From: danny <dannynopsamia-esprezzo.com>
Subject: Saab 9000 low oil pressure


That famous phrase RTFM comes to mind... Yesterday, after using the car a few times normally, I went out last night and the oil light in the pictogram didn't extinguish. Not having the manual to hand, I checked the oil level and found it to be on the low mark. "clever engineering" I thought. I was going to the local supermatket anyway, and I reasoned I would pick up a litre of oil while I was there. I noticed that the engine sounded a little noisier than usual. I added sufficient oil to get the level to the max mark (less than a litre), but was surprised to find that the light didn't extinguish. I had a friend with me who wanted a take away on the way home, so we drove another couple of miles at <40mph to the takeaway. We then noticed that the engine noise was now much louder (hydraulic tappets tappeting!). I waited whilst he got his food. Neither of us had a mobile on us (why is that!) so I gingerly drove the 2.5 miles home at low speed, oil light still on. The car drove OK, didn't sieze, and we made it. The previous day the tappets sounded noisy for a short while, but it rectified itself shortly after. I'm also a little surprised that the level was a little low on the dipstick, as it doesn't usually use oil between changes. I assume that either there is a problem with the pump, or the relief valve is shot, or the strainer is blocked? The vehicle is '91 9000 non turbo, has 135k miles on the clock, has always had regular oil changes etc. Have I damaged it irrepairably by driving it home with an obvious oil problem? I know how to find how difficult it is to get to the strainer and the pressure releif valve - My Haynes manual is a bit obtuse about the pressure relief valve, and shows pictures that seem to suggest that the amount of dismantling required to get to it is incorrect. Can I get to the oil strainer by just removing the sump? any tips or suggestions on other possible causes and whether the vehicle is likely to require much more remedial work? If it does, it would be cheaper to get another engine, since I have limited funds (unemployed at present) and it already was pretty near to needing timing chain/balance chain work. -- Regards, Danny http://www.gaggia-espresso.com (a purely hobby site) http://www.dannyscoffee.com (UK advert for my mobile espresso service) swap Z for above characters in email address to reply

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