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Old 06-20-2012, 10:53 PM
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Surging Problem. Help?

My 2005 Jeep Grand Cherokee 4.7L V8 has a surging problem. when i am in park or neutral it will surge from approx. 500 RPM to 1000 RPM. does anyone have a solution to this?
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Old 06-21-2012, 12:18 AM
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Re: Surging Problem. Help?

throttle position sensor... VERY common on the 4.7l... Seems like I had a 4.7l WK a couple weeks ago that was not the tps but there was actually a pcm update. I think it was much less rpm fluctuation than that though.
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Old 06-21-2012, 09:01 AM
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Re: Surging Problem. Help?

ok, i will look into that. thanks for your help!
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