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New A.c. compressor not working. Still no air, No leaks at…

Customer Question
New A.c. compressor not...

New A.c. compressor not working. Still no air

Mechanic's Assistant: Do the vents feel cold? Is there a coolant leak?

No leaks at all. All 4 new hoses

Mechanic's Assistant: What is the model/year of your Cadillac?

Front and back independent controls

Mechanic's Assistant: What year is your Cadillac?

2009 cadillac escalade esv

Mechanic's Assistant: Are you fixing your Escalade ESV yourself? What have you tried so far?

So glad ur here

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Replace a.c. compressor. And pressure sensors And 4 hoses

Submitted: 11 months ago.Category: Cadillac
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Answered in 16 minutes by:
9/18/2017
Cadillac Mechanic: David Craig, Auto Mechanic replied 11 months ago
David Craig
David Craig, Auto Mechanic
Category: Cadillac
Satisfied Customers: 5,998
Experience: Owner/Mechanic at 3D Automotive
Verified

Hi Im David, thanks for visiting the site, please allow me a few minutes to review your information, thanks

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Cadillac Mechanic: David Craig, Auto Mechanic replied 11 months ago

are either systems not working? front and back?

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Cadillac Mechanic: David Craig, Auto Mechanic replied 11 months ago

are you there?

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Customer reply replied 11 months ago
We tried replacing relay, a.c. compressor, lines, evaporator sensor, we pulled a vacuum (no leaks).We bridged the slots where the relay goes to force compressor to run so we could fill it with 3 lbs. of freon.It does not engage without the bridge.
Customer reply replied 11 months ago
The system run perfect full of Freon with the bridge.
Cadillac Mechanic: David Craig, Auto Mechanic replied 11 months ago

ok, you need to hook up an ac manifold gauge set to the high side and low side pressure ports so we can see what the pressures are doing. forcing the system to run by jumping the relay can and will damage other components if there is something that is keeping the system from running under normal circumstances, which obviously there is.

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