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MASTER TECH
MASTER TECH, Honda Service Technician
Category: Honda
Satisfied Customers: 5722
Experience:  28 years of Honda training and a master Honda tech
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I need change the R12 AC system now in the car to a R134 system.

Customer Question

I need change the R12 AC system now in the car to a R134 system. What part do I need to convert the system and their cost?
1989 Honda Civic 1.5V4, Automatic transmission, VIN# ***** AC unit in the car at this time.
Thanks
Harlan Perdew *****
Manteca,Ca.95336 (###) ###-####***@******.***
Submitted: 1 year ago via Mitchell1DIY.
Category: Honda
Expert:  MASTER TECH replied 1 year ago.
Hello welcome to just answer I'm Master Tech and will be able to assist you today.
Honda sells a conversion kit for this and will include the oil and new line adapters.
you will need to follow the direction completely and use a a/c machine to complete this task.
do you have access to this a/c machine ?
Customer: replied 1 year ago.
I have contacted Honda with no help.They say the car is to old.
Expert:  MASTER TECH replied 1 year ago.
im trying to load the service bulletin it contains the part #
38020-SM4-A1AH
Customer: replied 1 year ago.
OK thanks I will try that part number.Thank very muck for your help! Harlan
Expert:  MASTER TECH replied 1 year ago.
you can get a conversion kit from the parts store that is made by castrol but I personally have no experience with these. the Honda kit comes with the correct oil for this conversion as each compressor does use a different oil.
Customer: replied 1 year ago.
Thanks again!!!!!!!
Expert:  MASTER TECH replied 1 year ago.
here is the service bulletin \.
https://www.dropbox.com/s/n2fzonk13hyo1nf/a-c%20conversion%20r12%20to%20r%20134a.pdf?dl=0
I do ask that you please rate my service.
I do my best to earn excellent ratings as a Honda tech I do take this very serious and will give the most up to date info.