Air And Radiator

[tim john]

Hello, I have a 04 es, 62000 miles, should I have maintenance on the air conditioning even if its blowing cold air, and how about drain and flush on the radiator? never had that done yet. thanks.

Tim

[camlex]

A/C is closed system. No maintenance.

Newer coolant goes up to 90,000. When you do your TB, WP etc.

[George_Jetson]

You could change the coolant a little early, I personelly think the maint schedules are more of a marketing speal, and not totally realistic. You will not hurt the car by doing it sooner than they recommend.The ac is a closed loop system, but you do have a cabin filter that should be changed, and the condenser fins should be checked for obstructions. Generally you can just backwash them to clean stuff off. BE CAREFULL AROUND THE CONDESSOR treat it gently while cleaning.

[camlex]

Hello George,

How to make condenser fins straight. Mine is 12 yrs older. That is will helps.

[tim john]

Thanks, I do the maintenance by the book, checked the cabin filter, looks good. thanks and have a good day.

Tim

[George_Jetson]

Hello George,

How to make condenser fins straight. Mine is 12 yrs older. That is will helps.

They have a tool, that looks like a comb, has several different sides to it. Each side is for different fin "Densities" that will straighten the fins and also dig out any hard core Kamikaze bugs.

[camlex]

Thanks,

Let me ask one more question for Sienna. same 1MZFE Engine. When minivan is cold no problem. after comes to operating temp.,

if you stop on stop light or sign and if you move your steering wheels to right at some vibration you feel on steering wheel.

nothing happen on left turing. any idea? minivan has 140K.

[George_Jetson]

Check out this ebay auction, it gives a good picture of what I am talking about.

AC A/C Radiator Condenser Fin Straightener Comb Rake

FREE SHIPPING! Evaporator Coil Fins Cleaner Tool NEW! ebay Item number: 270389993116

[camlex]

Thanks,

I found it @ NAPA for $9.99.

Any advise on Sienna?

[George_Jetson]

Thanks,

I found it @ NAPA for $9.99.

Any advise on Sienna?

seiena_steering.pdf

There are several tsb's on your sienna. I think that this might be the most relevent for you car. Does it sound like this is what you are experiencing?

[camlex]

Thank you very much.

Any idea how much money to replace?

Again, Thank you for taking time out and guide me in right direction.

[George_Jetson]

Glad to be of help. I have no clue on what the cost would be, my guess that it would not be too bad, (but probably a dealer only item).