Thread: What are these?
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Old 02-09-2013, 04:39 PM   #3
rsavage
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Location: Alden NY
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Re: What are these?

Throttle solenoids. Used to increase idle when AC is switched on or in other cases to drop off idle speed when the key is turned off to prevent dieseling. On our trucks, used in conjunction with the AC. However, they don't look like the ones mounted to the front of the Q jets found on our trucks.
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