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TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board
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Heavy Duty Diesel Truck Mechanics Forum
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2006 Columbia Detroit 14l
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<p>[QUOTE="Willis Inc., post: 12012933, member: 309168"]Turned out to be my AC high pressure switch. I put a paper clip in as a jumper, it is a Neg -. in / Neg -. out circuit.</p><p>It is in series with the Neg - side of the fan solenoid. What made this trouble shooting so hard was that my analog multimeter was reading 12 volts at the plug for the solenoid but it would not work. Because of the weak ground { NOT OPEN }coming thru the AC high pressure switch.</p><p>Hopes this helps some one.</p><p>Willis[/QUOTE]</p><p><br /></p>
[QUOTE="Willis Inc., post: 12012933, member: 309168"]Turned out to be my AC high pressure switch. I put a paper clip in as a jumper, it is a Neg -. in / Neg -. out circuit. It is in series with the Neg - side of the fan solenoid. What made this trouble shooting so hard was that my analog multimeter was reading 12 volts at the plug for the solenoid but it would not work. Because of the weak ground { NOT OPEN }coming thru the AC high pressure switch. Hopes this helps some one. Willis[/QUOTE]
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TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board
Forums
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The Garage
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Trucks [ Eighteen Wheelers ]
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Heavy Duty Diesel Truck Mechanics Forum
>
2006 Columbia Detroit 14l
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Reply to Thread