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Ron
Ron, ASE Certified Technician
Category: Chevy
Satisfied Customers: 35289
Experience:  35 years experience with ASE Certs
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I replaced the compressor in a 2007 chevrolet express van.

Customer Question

i replaced the compressor in a 2007 chevrolet express van. add 2 oz of oil in the new, not reman compressor. is that correct? have in mind that this vehicle has rear a/c, do i should add more oil in the a/c system? or 2 oz of oil is ok? how many cans of gas freon needs all the system?
Submitted: 1 month ago.
Category: Chevy
Expert:  Ron replied 1 month ago.

Hello. My name is ***** ***** I am happy to assist you today. Give me just a moment to review your post, and I'll be right back with the help you need.

Expert:  Ron replied 1 month ago.

When you replaced the compressor did you flush the complete system?

Customer: replied 1 month ago.
not yet, i am about to start all the job. i purchased the oem denso compressor. the manual said that, it has oil inside.
Expert:  Ron replied 1 month ago.

Okay on a system with rear AC you will need 11 ounces of oil for the complete system and yes you will need t place 2 of them in the new compressor and the rest of the oil through the system. See the link below for where the new oil need to go after the flush.

https://dl.dropboxusercontent.com/u/104923897/Oil%20May%2015.pdf

Customer: replied 1 month ago.
before put all 11 oz in the system, i need to drain all the oil, correct?
Expert:  Ron replied 1 month ago.

Yes , the old oil will come out when you do the flush.

Customer: replied 1 month ago.
do you know what brand of oil do i need to add? the compressor manual say, use only denso oil but i can not find that brand.
Expert:  Ron replied 1 month ago.

You can use any brand of Pag oil .

Customer: replied 1 month ago.
i foundpag-46pag-100pag-150which one i should get?
Expert:  Ron replied 1 month ago.

GM calls for GM P/N 12378526 which is Pag 46 synthetic oil.

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