Sunday, April 29, 2012

Toyota Sienna: Isolating Rear AC lines?

This problem is very much noticed on many Toyota vehicles.After some years of usage the Rear Side A/C lines gets rusted and gets cracked.Replacing the lines is only option to get complete cooling.The cost to replace is A/C line assembly is approx $1500 including labor charges.
But there is no guarantee that this same problem will not reoccur after some years.

Mostly the problem is noticed on the lines going back from the front unit to the rear unit.


THE LINES TO THE REAR HAVE BEEN AN ISSUE EVEN THROUGH THE Present latest MODEL YEAR.

It is a corrosion issue and the muffler on this year has a tendency to rubber on the low side line and wear a hole in it. The fitting at the rear cooler unit is an issue also. The front can not be isolated by any conventional means. In theory you can just run the front which many repair techs will recommend.And that is correct. This would require someone that can weld aluminum efficiently. Up on the lines where they branch off from the front would have to be cut and crimped then welded over at the seam that was crimped. There would be no side affect it would just have to be charged with a little less Freon.So the line dont gets over-pressurized by ample of Freon.

This details will help.
Thanks.


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