Question about 1996 Saab 900

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Hard to start when 30 degress or less out.

Hi I have a 97' Saab 900s. When the temp is 30 or less I randomly have a hard time starting my car. Some days it is fine some days it takes me 15-20 min. The check engine light is not on. The car will start for a second and then die. The time is stays started will get longer until finally it starts. If I try to press on the gas when it first starts it will immediatly die. The engine will rev on its own (without pressing the gas) then after about 3-5 min of warming up it is fine for the rest of the day. What could it be?

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Engine coolant sensor and Intake air sensor bad -----tech terms( ECT and IAT) The way to check these you need to hook up a scan tool to the cars computer and both of the readings for these sensor should read the same. If reading is off by 2 degrees that's ok not too off. And it should be in the morning before you start your car up. Thats the time you check it. hope this help

Posted on Dec 18, 2008

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