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'99 - '06 GM Truck Modifications
Interior
Intermittent a/c failure on a 2005 Tahoe manual controls
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<blockquote data-quote="ORVietVet" data-source="post: 24820" data-attributes="member: 9438"><p>Yes. I have a Foxwell NT710 GM specific scanner and I did monitor counts at the actuators and the noisy right side actuator was not smooth, like the left, when switching from hot/warm to cold. It was slow and erratic and even when it was finished getting to it's commanded position, it was still "hunting" and that actuator was noisy/ratcheting while moving. The problem is the control head command to the compressor to actually activate the clutch. It just stops intermittently and if I jump the #30 and #87 pins, at the relay, it works and blows cold. The compressor just shuts down intermittently/randomly or does not even come on at all. If it is refusing to come on, the relay jump always turns it on and she has cold air. I am going to confer with my shop owner buddy this morning and make a decision. I know she needs the actuator. It will open and close but is ratchety and noisy.</p></blockquote><p></p>
[QUOTE="ORVietVet, post: 24820, member: 9438"] Yes. I have a Foxwell NT710 GM specific scanner and I did monitor counts at the actuators and the noisy right side actuator was not smooth, like the left, when switching from hot/warm to cold. It was slow and erratic and even when it was finished getting to it's commanded position, it was still "hunting" and that actuator was noisy/ratcheting while moving. The problem is the control head command to the compressor to actually activate the clutch. It just stops intermittently and if I jump the #30 and #87 pins, at the relay, it works and blows cold. The compressor just shuts down intermittently/randomly or does not even come on at all. If it is refusing to come on, the relay jump always turns it on and she has cold air. I am going to confer with my shop owner buddy this morning and make a decision. I know she needs the actuator. It will open and close but is ratchety and noisy. [/QUOTE]
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