I’ve had the air conditioning system for my 1997 Toyota T100 serviced at least twice in the last 5 years. They always find that the coolant is gone, but are unable to find a leak. While running the A/C last year, a blast of vapor came out the vents. I suspect that the problem lies in the evapo…

You can do it, but you’ll need a service manual. Haynes is OK, but Toyota factory is better. Try Books4Cars.com for inexpensive used manuals. Removal of at least part of the dashboard is almost guaranteed, but the manual will tell you for sure. This sounds worse than it is. Mostly it’s just a l…

You may be able to just remove the Cooler Unit out from under the dash. Take a look. http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800374bb Tester

Don’t tear your car apart until you KNOW where the leak is…

Do you have experience working on AC? You need a fair amount of special equipment. Even though I’ve installed a unit, I’d take my car to a good shop for what you’re talking about.

good god MAN! dont jump to conclusions,hook up a gauge set and see what is really going on. geezzz! try a tech!

If this blast of vapor was the refridgerant charge there would have been quite a oily mess around the air deflectors (the discharge vents) was there? Evaporators usually leak slowly,the sudden discharge, while possible troubles me. In any case get a Factoty Service Manual, I own some for cars I do…

Tester is on the right track. Toyota typically puts the expansion valves next to the evap grid in the same housing. They designed the dash to make it easier to service. Remove the lower portion of the dash with the glove box on the passenger side, and you can access the screws that hold the evap coi…

thanks, most helpful reply I got.

This is long past, but part of the diagnostic should be to use an electronic leak detector at the drain outlet with the system off, so the refrigerant pressure in the evaporator is at the highest level. If the core is leaking it’ll sound off when it’s held below the opening. Refrigerant is slightly …

Your advice isn’t going to help the guy with the Toyota T100 . . . that was 8 years ago, he’s probably no longer even active on this website

Replacing air conditioner evaporator core

Maintenance/Repairs

db4690 July 5, 2017, 4:10am 13

So then we’re just going to keep rehashing this ancient discussion . . . ?!

Good grief

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Replacing air conditioner evaporator core

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