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Date: Fri, 15 Oct 2004 21:20:53 GMT
From: hohnospamlid.invalid (Goran Larsson)
Subject: Re: Bad things have happened.


In article <2ta4gtF1s8r4cU1nospamberlin.de>, Dave Hinz <DaveHinznospamcop.net> wrote: > Well, just got the call from the garage who has my 9-5. Compression test > is 130-110-90-0, and there is no oil pressure. No compression at all must be either an broken/open valve or a broken piston. A broken valve would not result in a high pressure in the crankcase, so I think, unfortunately, that a piston is broken. I don't know how a broken piston can cause loss of oil pressure (unless it completely trashed the internals of the engine). Perhaps something else took away the oil pressure and the piston broke due to lack of oil? Low quality oil and long oil change intervals are known to cause coked oil, the solidified oil collects in the oil pan, and then completely blocks the oil pump pickup filter. What is the service history for this car? The statistical sample of four is too small, but the sequence 130-110-90-0 is quite intriguing. Is the cylinder with the 130 reading closest to the oil pump? > Can I flat-tow an automatic transmission 9-5 for a distance of 6 miles? The exact rules can be found in the owners manual and is different for the four and five speed automatic transmissions. The rules for the four speed automatic transmission, taken from the MY1999 manual, are: * gear selector in N * only tow in the forward direction * max tow speed is 20km/h (12mph) (or lower if local law says so) * max tow distance is 30km (18 miles) -- G–ran Larsson http://www.nospam.com/saab/

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