2nd Gen Dakota Tech 1997 - 2004 Dodge Dakota Tech - The ultimate forum for technical help on the 2nd Gen Dakota.

small rpm variance @ cold start

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Old Aug 9, 2012 | 04:30 PM
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Default small rpm variance @ cold start

Noticed it this morning real well pronounced, it's always done it though.

Idles around 750 or so, sounds fine

for no reason (it's not the AC clutch) it'll pull down to 500 and sound like a VW pancake motor, stay there for a few seconds, then go back to normal. Doesn't do it when warm or driving.

Leak detection pump turning on and off?
 
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