by Ask Bob: The Auto Answer Man
I have an old 1992 Ford Explorer with 150,000 miles on it. Since the air has been out for almost a year, can I add R-22 OR R134 to the R-12 system? I want it to close the low pressure switch and give me some cool air. I don't worry about damaging the system since it doesn't work at the present time and I'm not going to spend more than $50 to get a little cool air.
By combining two different elements, am I creating an atom bomb in my engine compartment? Incidentally, I did meet another fellow with the same vehicle and problem, and he said that he just added 134 to his system, and it worked just fine until he blew a hose, which he attributed to old age.
You can not add R-22 to an automotive system. However, you might get away with some of the new R-134 equivalents out there. When the change over first happened, the new refrigerant was not compatible with the old compressor oil. Mixing the two would form an acid and wreak havoc! The newer refrigerant should be compatible. Of course, the best way to do it is to drain out all the old compressor oil, change the receiver, put system under vacuum, and refill. However, I have heard of people simply switching over to the new stuff on a system that is not working and getting cold air. Please remember this is not the recommended practice.
Bob, The Auto Answer Man
Have a car care question? Visit our automotive center and see if we've already answered it or a similar question.
Also in Home
- Tricks to painting interior trim
- Affordable chimney care
- Do-it-yourself brick walkways
- The pros and cons of having a homeowners association
- 5 places to find free firewood
- Homemade detergent for HE washing machines
- 5 best budget decorating tips under $20
- How to make garden stones
- 5 ways your house can make you go broke
- 5 simple and affordable luxuries for your home
- Does staging really raise a home's price?
- 5 home renovation can raise your insurance rate -- or lead to discounts
- The right way and wrong way to pay down your mortgage
- 6 cheap, effective home security solutions
- 3 ways (and 1 reason) to refinance a HELOC
- 6 home projects that don't pay for themselves
- Should I refinance my home equity line?
- Find the best mortgage rates in your area
- 3 ways to use a mortgage calculator
- Mortgage calculator: Calculate your payment and more
- Home equity calculator: HELOC vs. line of credit
- Mortgage refinance break-even calculator
- How much money can I borrow for a mortgage?