high idle
high idle
i have a 97 ram 1500 with 5.9l, just bought truck it has a high idle 1200rpm, runs great. check engine light came on noting idle sensor and o2 sensor, also #8 misfire. cleaned plug, idle sensor, codes went away but still has high idle. took off hose from breather and it has an excessive amount of vacume. plugged it off and it idles perfect????? i've heard anything from manifold, gasket to stuck valve?
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From: Sioux Falls, SD
Legend
Joined: Jul 2011
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From: Austin, TX
Get PCV from dealer...not but about $4. After you replace that, let us know if it is fixed and if ot, we can go from there.
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From: Clayton MI
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i'll try the pvc valve, it was doing this before i plugged the vent tube. after i plugged the tube, it idles perfect. i was told to pull the pvc and if it rattles, it is good, mine rattles, is there any truth to this? thanks.
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Joined: Jul 2006
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From: Gainesville, Ga.
rattling indicates that its not all gummed up, which generally means that its good in one direction (the ability to vent).
but according to your test where you plugged the opposite side vent, that cured your problem, which indicates your pcv is over-venting.
but according to your test where you plugged the opposite side vent, that cured your problem, which indicates your pcv is over-venting.
