Question about 2002 Saturn Sl
It sounds like your intake manifold gasket. These cars are well known for this. Get a can of either brake cleaner, or engine cleaner. While the car is running, spray the cleaner directly onto the gasket where the intake manifold bolts onto the back of motor. Most of these cars leak air between cyl. 1 and 2. there are 9 nuts holding this on. If you hear any change in the idle while spraying, you will have just confirmed that the gasket is the problem. Let me know how you make out, and if you need, I have this complete change on video. Its a cheap change and easily done let me know how this test goes, and if it's not the problem I can teach you how to check the Air idle, throttle positioning , and EGR sensors. Let me know
Posted on Jan 21, 2013
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Posted on Jan 02, 2017
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