Question about 2007 Chrysler 300 AWD Sedan
P1004 describes a problem with actual performance of the short runner valve (SRV), something used in your active air intake system to improve performance above 4500 RPM at or near wide open throttle. Its job is to change the path air takes within the tuned passages of the intake manifold, switching from a longer port runner length that's beneficial at lower engine speeds to one better for maximum horsepower at high RPMs. While there is likely a technical service bulletin that applies to your 3.5 engine that states this is a software issue, it hasn't been my experience in real life. The problem is almost certainly with actual performance of the SRV actuator, which is equipped with a potentiometer to track its actual travel... or performance... when actuated. The potentiometer is what goes bad on these units, something serviced only with a new SRV actuator. You won't likely notice any running problems with the engine other than perhaps the loss of a little high-RPM performance, but the MIL will keep coming on until the problem is addressed. The SRV is one of two servo actuators bolted to the plastic upper intake plenum and is the once closer to the center of the engine. It's easily removed and replaced using common hand tools (10mm socket and short extension) and costs in the neighborhood of about $350 I believe. It would be covered under the basic 3/36 warranty but not by the extended federal emission warranty unfortunately. If you have any questions, don't hesitate to write back.
It is not serious, but it will effect gas mileage and performance. Click on the link below, it will give you info on the code and how to find the problem: Code 1005 PDF
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Posted on Aug 26, 2010
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Posted on Jan 02, 2017
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