[5th Gen : 08+]: 2010 AC clutch not engaging
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2010 AC clutch not engaging
Hello All,
Thank you for the add.
I have a 2010 Gr. Caravan, 3.8L, rear AC, 108??? mileage. The AC no longer blew cold air when I left work this past evening. I checked the compressor for the clutch engaging and it was not. I've done quite a bit of reading and see that this model does not have a fuse and relay setup, but has a TIPM that supplies pwr to engage the clutch under predetermined conditions. I have not ohmed the clutch coil or verified if power is getting to the clutch yet. Before I did that I wanted to get this thread started and find out what other components have input in order for the TIMP to supply pwr to the clutch, i.e., low pressure switch, high pressure switch, blwr motor, radiator fan and so on.
So my question is, what components have a play (have to be working correctly) in enabling the TIMP to send pwr to the compressor clutch?
And, what resistance should I read when ohming out the clutch coil?
Any wire diagrams or schematics would be much appreciated.
Any other suggestions are welcome.
Thank you for the add.
I have a 2010 Gr. Caravan, 3.8L, rear AC, 108??? mileage. The AC no longer blew cold air when I left work this past evening. I checked the compressor for the clutch engaging and it was not. I've done quite a bit of reading and see that this model does not have a fuse and relay setup, but has a TIPM that supplies pwr to engage the clutch under predetermined conditions. I have not ohmed the clutch coil or verified if power is getting to the clutch yet. Before I did that I wanted to get this thread started and find out what other components have input in order for the TIMP to supply pwr to the clutch, i.e., low pressure switch, high pressure switch, blwr motor, radiator fan and so on.
So my question is, what components have a play (have to be working correctly) in enabling the TIMP to send pwr to the compressor clutch?
And, what resistance should I read when ohming out the clutch coil?
Any wire diagrams or schematics would be much appreciated.
Any other suggestions are welcome.
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Joined: May 2008
Posts: 9,657
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From: Louisville, Ky
Welcome to the forum.
I would check the system pressure first. If it sprung a leak, the low pressure should keep the compressor from engaging, so that the system doesn't burn itself up.
There could be a low pressure switch, a high pressure switch. If it's like my Ram, the compressor cycles off of a temp switch on the evaporator.
I would check the system pressure first. If it sprung a leak, the low pressure should keep the compressor from engaging, so that the system doesn't burn itself up.
There could be a low pressure switch, a high pressure switch. If it's like my Ram, the compressor cycles off of a temp switch on the evaporator.