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Old 04-20-2009, 10:28 PM   #1
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Default idle drops when put in prk.

I have this problem that i can't figure out. I have replaced the IAC valve twice within a one yr. period and my truck has about 105k on it. My problem happens when i put my tranny into park and the rpms drop down to 450-500. My TB is pretty clean, the MAF has not dust or oil build up. what could b causing this?
2002 XLT Supercab 4x4 Offroad 4.0L
3" Performance Acces. BL
1.5-2" T-bar crank
33x12.5 Yokohama Geolander AT, 15x8 51' Series Rock Krawlers
6" Hella 500s'
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Old 04-25-2009, 02:40 PM   #2
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i have no clue what could be causing it might just need cables tightened, i no in the 85 nissan hardbody we own, it idles at about 1k with the heater on and if u turn it off it goes down to about 500, i doubt this helped but maybe...
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