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My 1984 900T has 185K miles on it. Twice within a day this summer, on a hot day in western Nebraska (a bad place for a Saab to break down), the following happened:
Pulling out of a slow construction zone, as I had reached 40-45 mph or so while accelerating in fourth gear, I began to lose power. It wouldn't go past about 2300 RPM, and then within a couple of seconds the engine stalled completely. A minute later I turned the key and the car started up perfectly normally. The temp gauge was normal the whole time. I had a couple of things checked afterward. The electrical system was fine, battery OK and alternator doing great (the alternator is only about two years old). My mechanic thought that it might be a bad temperature gauge since the day was very hot (upper 90s), but this doesn't seem to be the case. Distributor cap and plugs are about a year and a half old and only have about 10K miles on them. No loose vacuum lines.
After the two incidents, the car drove fine for about three hundred miles, then something similar happened -- this time while climbing a hill at 11,000 feet altitude with an outside temp of 70 degrees or so. Once again the temp gauge was normal and the car started fine immediately after the stall-out. Since then I've driven a couple hundred more miles without incident.
All I can really think of at this point is the fuel system-- but I don't understand what could be producing such an intermittent problem. Any ideas?
posted by 128.138.133...
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