Date: Fri, 21 Nov 1997 23:43:05 -0500
From: Chmura Family <>
Subject: oil in intake manifold

My SAAB ('84 900 8v non-turbo(0-60 in 2 weeks)) is blowing oil into the intake manifold and the rubber tube that connects the air filter body . I have seen oil on the air flow sensor, air temperature sensor, the connector for the air filter/intake manifold. I spent the last year in Sweden and while I was away my father drove the car for about 5K miles. My brother changed the oil and put on the wrong filter and probably not my favorite oil (Mobil 1 10w-30). The engine "pops" (the black rubber connector from the air filter to the intake manifold appears to want to explode) on low fuel air ratios or when the engine is not warmed up fully when not a completely cold start. Mechanics have tried to adjust the air fuel ratio with a duty meter. This only makes the problem worse. The best adjustment I can do is to warm up the engine and unplug the O2 sensor and make the air/fuel ratio as rich as possible and get a smooth running engine. This is all done by ear. I still get about 26 mpg. The idle is best set when all elec is on and the engine is running as low and smoothly as possible. When I came back, the car needed/or had replaced: a new exhaust, a new warm up regulator, a new fuel distributor, 2 new tires, a fuel pump, a fuel filter, both front brakes including calipers, four shocks, a front wheel bearing, and coil, all in addition to a normal tune up (plugs, filters, rotor and cap), rebuilt kit for master cylinder Other than that it has been pretty reliable. I bought it with 189k miles on it. BTW The car will have 225K after I finish the current tank of gas. (So I shouldn't complain but I have no money for another set of wheels.) I just hope the synchro and clutch holds on until the engine blows If you have any ideas about the oil or an erratic idle (throttle plate covered in oil/not closing correctly?) drop me a line at Chris Chmura

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