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Old 11-05-2013, 10:21 PM   #5
SL19302
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Join Date: Jan 2011
Location: Drums, PA
Posts: 3,350

2000 SW2
2002 SL1
Default Re: Warm 98 SL2 Engine Hesitation when changing throttle position upward

With 170K on the engine and it being a DOHC motor, I would do the compression test, There known for burnt exhaust valves, Most likely if thats the case the reason it runs better above the 2500 rpm range is because ignition is happening at a faster rate before the air/fuel mixture exits the burned valve, If you find compression lower in one of the cylinders you could stop all of your tests because that will be your issue....

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2015 Subaru Forester Limited "Prinny"
2000 SW2 Still Running Strong- 160K Traded In
2002 SL1 Still has Its Training Wheels on at 88K Traded In


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