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AC relay jump and Sostill no hapiness

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Old 06-26-2024, 11:44 AM
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Default AC relay jump and Sostill no hapiness

Out here in dusty West Texas, temps of 100+ in the summer is standard.
So, an AC is a nice thing to have.

2001 Lariat
The compressor was not engaging, replaced the relay and still no go.
But, when I jumped it, the compressor kicks on.
Tried a few relays both old and new, still the compressor only works when jumped.

Any thoughts?
All help is appreciated.

Phil
Old 06-26-2024, 11:45 AM
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Jump the low pressure switch and see if it comes on.
Old 06-26-2024, 12:16 PM
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Tried and failed.
Old 06-26-2024, 12:21 PM
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Jumped the low pressure switch and still the compressor does not engage.
Old 06-26-2024, 12:26 PM
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The compressor was not engaging, replaced the relay and still no go.
But, when I jumped it, the compressor kicks on.
Tried a few relays both old and new, still the compressor only works when jumped.

So, when you use the AC switch, nothing happens(?). The problem may be in the switch.
Old 06-26-2024, 12:28 PM
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Just blows hot air.
Old 06-26-2024, 01:02 PM
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Fuse?
Old 06-26-2024, 01:15 PM
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Checked that first. Then, the relay
Old 06-26-2024, 01:41 PM
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Originally Posted by skinnermagic
Just blows hot air.
Are you sure it's charged? You may have to jump the both switches.

This thread reminded me that I need a new cycle switch harness.
Old 06-26-2024, 01:57 PM
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It could use some freon.
If I jump the relay, the compressor kicks on.
If I put the relay back and jump the low pressure switch, nothing happens.
If I jump both, not sure what I would have learned about the situation.


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