2002 4.7 V8 idling low and stalling.


Asked by Apr 18, 2015 at 02:25 AM about the 2002 Dodge Dakota 4 Dr SLT Plus 4WD Quad Cab SB

Question type: Maintenance & Repair

I own a 2002 4.7 L Dakota quad cab. For probably 6 months I have been having some
troubles with the idle. The idle constantly changes from 700 to 500 RPM, and
sometimes lower. At some points it will start idling around 300 RPM and then when I
come to a complete stop it will probably stall out. It has stalled out multiple times,
sometimes when I'm at a full stop and sometimes when I'm coasting slowly (like
through a parking lot for example). Most times after it stalls it does not have any
problem starting back up, but it will idle low for a while. A few times it has stalled and
has not been able to keep itself running. It will stay running if I keep my foot on the
gas, but wont idle. I figured out that if I unhook the battery for a few minutes then hook
it back up it will reset and start idling around 700 RPM again, but that will last maybe 2
or 3 weeks. I have replaced the throttle position sensor, the idle air control, the battery,
and I have cleaned the throttle body and it continues to happen. Not really sure what
else I can replace to get this fixed. Insight would be greatly appreciated.

4 Answers

Joel Rodriguez

Check for any vacunt hose broke or leak shudder be fix the problem

Joel Rodriguez

gas pressure regulator


The only other things I can think of that would really affect your idle would be a dirty MAF or a bad Engine Coolant Temp sensor. You can remove your Mass Air Flow and clean it with a can of CRC MAF cleaner. Your ECT is usually under $20. Do you have a check engine light on?


Does it still have a low idle when your ac is on, or in neutral or in reverse.

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