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While the HVAC system paths will vary greatly between cars, try these first: If the items are metal or contain metal, use an extendable magnet to reach straight in, or if it is further in then use a magnet tied to a string or dental floss. You can use a long hook (used in dentistry) to reach in and hopefully loop the item, or again attach it to a ...


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If you try the different stages of the fan, how does the flow change? The stage resistors are responsible for the intermediate stages by, well, putting resistors in the line. But the highest stage should always work. So, if there is a problem with the intermediate stages, that resistors would be the first part to check. If you increase the stage, does the ...


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One common failure point that is often overlooked is the final stage resistor. This part is responsible for controlling the speed of the fan blower (which is why I asked about the fan speed operation in the comment). As for the fan blower itself, it is a mechanical component that doesn't fail as easily. Unless the motor is part of the blower unit and the ...


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@Paulster2 is spot on. The AC clutch has to be engaged in order to set the correct baseline for high-side/low-side refigerant pressure. I will add one point here that is often overlooked. The ideal thing to do is find out the mass of refrigerant that is required to fully charge the system, because that is really what the whole system is designed for. Here ...



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