AC Upgrade...

[DIGITRUCK]

Hey,

'88 XJ Cherokee Laredo 4.0L Auto 4WD.

Is it difficult to upgrade the AC System to use the R12 Refridgerant (I think that's the current one in use on newer cars).

What do I need to do the upgrade? Special tools?

Thx, Phil

[GregA]

Phil,

I believe that R134 is the current stuff. Yes, it takes special tools & equipment, at least here in California.

Take Care,

[DIGITRUCK]

Originally Posted by GregA

Phil,

I believe that R134 is the current stuff. Yes, it takes special tools & equipment, at least here in California.

Take Care,

Hey GregA,

Thx 4 the reply. If I had the correct tools do you think it'd be a job for a backyard mech or would it be dangerous and leave it to the pros?

Yes, you're right the R134 is the current stuff. My XJ's AC still blows cold with the old stuff. I just was wondering in the event that I lost all my old refridgerant what it'd take to upgrade since you can't buy the old stuff any more and have to put in the R134.

Thx, Phil

[dave92cherokee]

Alot of auto parts stores sell the r12-r134 conversion kits which aren't to expensive and do require special tools. Unless you have ALOT of experience working with automotive A/C I'd leave it to the pros since the lines are under so much pressure and if everything isn't done right then it will cause alot of damage to the A/C system.

[Saudade]

Unless your current A/C system is empty (I see yours in not), there is an EPA requirement to reclaim the R12. Releasing it into the atmosphere is illegal (not that the Freon cops are watching).

There are some direct substitutes (such as Freeze 12) but any servicing to replace the R12 should be done by a licensed shop. Part of the servicing involves drawing a vacuum in the system to purge any moisture from the system. I hope you can imagine the problems you'd have if there's any moisture in a refrigeration system.

You can still purchase R12 but need to be licensed under Section 609 of the EPA code.

http://www.epa.gov/ozone/title6/609/.../609certs.html

You can actually take a test online (multiple choice) and get "certified" if you choose to do so. This would allow you to legally purchase R-12.

http://www.ase.com/Content/ContentGr...tification.htm

I purchased a case of R12 before the cutoff and have 2 cans left. I've used these over the years to service my a/c (add when low) in my '87 Nissan p/u and my '88 XJ.