Hi,

Thanks for reading and offering advice if you can. First, my AC wont work. It's not the fuse as I checked it already. When I turn the AC on with the fan on High I cant feel the compressor kick on as usually it drops the RMP a little and now I get nothing. The heat and the fan both work I just cant get cold air beyond the external air temperature. Could it be the relay? If so, how do I check this?

Second, I have been getting a P0440 code. I have checked for disconnected tubing and found nothing. I have read it may be the purge valve. A quick note on this one: when I fill up my gas tank I dont have any pressure differential between the tank and the environment. All the cars I have ever owned always created some what of a vacuum as the tank went from full to empty. Is this a sign of anything particular? I did replace the gas cap a few months back and I almost always top off my take with an extra half gallon or so but i never over flow it.

Also, the car is a 2000 XLE with 72,000 miles.

Thanks guys any help is appreciated.

-Erik

 

Check AC and Fan fuses.

Check Magnetic Clutch and Heater Main relays.

If the Freon is low the compressor will not turn on.

Bad wiring.

Any blinking green light on the control panel?

Find the power wire to the AC compressor magnetic clutch and apply 12V DC. Might be a Black/White wire, the compressor is grounded. Determine if the compressor now turn on.

Make sure you find the correct wires as there may also be wires for the compressor speed sensor. These might be White/Red and White/Blue wires, don't apply power to these wires!

If the compressor turns on when power is applied to the mag clutch don't leave it on too long.



There is a air leak in the fuel tank system.

A loose or leaking gas cap can cause this code.

Cracked hoses in the EVAP system, cracked emissions charcoal canister, sometime the gas filler tube corrodes and leaks.

There was also a TSB on this some years ago:

http://www.justanswer.com/uploads/sn...5520_p0446.pdf

 

Thanks for the reply. This TSB thing, is this a service recall? I recently bought the car used from a non dealer. Im having trouble understanding this in-service date? Is that the last time it was serviced at a dealer? If I decided to go into the stealership I'd like to know if my car even qualifies for this TSB. Again, its a 2000 with only 72,XXX miles. Thanks again. I'll give the AC a trouble shoot this week as my multi meter was left at work this weekend.

 

Not a recall, this is a service bulletin. These bulletins are issued when there is a known problem with a component, system, manufacturing process, etc, that effects specific models of cars.

Recalls are typically safety related problems such as the famous Toyota sticking throttle issue. Or it could be an emission problem, a problem that does not give any signs such as a trouble code. Due to a problem, the car could now have higher emissions that it was certified to and if there is no signs of problem result in continued higher emissions without the cars operator knowing it. Something the EPA does not like.

Note-The problem listed in the TSB may not effect all cars, even cars that the TSB may apply to based on the year/model/VIN number.

The problem is something that has become known to Toyota, perhaps by the number of customer complaints, warranty repairs, or further testing by Toyota, rechecking manufacturing quality records, etc.

The problem may not be obvious, as in the typical diagnostic checks may not find it.

The TSB allows the dealer having servicing a car with certain symptoms (or maybe no obvious issues) to be quickly diagnosed based on TSB info then fixed per the TSB. The fix for a problem listed in the TSB may not be one that has been listed in the service manual.

This is the reason a link to the TSB was sent to you. The fix may not be one that is listed in the service manual.

The other issue is the TSB's are only initiated (car repaired) if the customer complains about the problem. The dealer will not apply the TSB without a customer complaint.

If bulletin has any applicable warranty period this is listed in the TSB. You car has passed the time and mileage warranty. Thus if repairs are required, you will pay for them.

If you have the VIN number from the car, compare this with the VIN numbers listed on the TSB for your model (Camry) and engine type (assume a V6) for both production lines listed.

If your VIN is the number listed or higher, Toyota has changed the manufacturing process to fix the problem and the TSB would not apply.

If your VIN is lower, the TSB can apply to the car. However not all cars will have the problems listed.

Toyota should keep records of these types of repairs. If the TSB applies to your car you can call a dealer who should have the info listed on the Toyota computer system.

The dealer can tell you if the TSB applies to your car based on VIN, but again the warranty period has expired. The dealer will charge for any repairs.

 

Thanks for the write up. I havent gotten around to looking at the AC as of yet. But, I did replace the gas cap with and OEM one and the engine light went off. However, I am still getting a pending P0440 code from my scanner. Is this just the computer working on clearing out the code from having a leaky gas cap? Thanks.

 

The computer may run more then one test, typically two. If the first test fails it will set pending code, if the last test fails it will set the code and the light will come on.

The link below has info on the code. The file is for an Echo but the problem area identified and causes are the same.

http://caphector.com/atoyota/techinf...eg/cip0440.pdf