Mechanics

AC QUESTION

2000 Lexus ES 300 • 6 cylinder 2WD Automatic • 56 miles

Lexus ES300, A\C recently started getting warm. I have noticed in a short observation that the AC operates very cold while driving. At a stop or stand still the AC intermittently blows between warm and cold air. Notably, if the AC is on at a stop or parked the engine temp rises. What are these symptoms a sign of? Aloha, Ivan Cruz, ivan. Cruz@itsecuritysolution. Com


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Ivan.cruz
July 5, 2011.



The first thing to check is to see if the fan is operating properly. After that you need to get a set of professional gauges and get readings on the high and low pressures both at idle and 2,000 RPM.

Wrenchtech
Jul 5, 2011.
Yes, I have noticed that the fan/auxiliary fans are not turning while the engine reads hot (warmer than normal operations). Other than the high/low pressure test what do you think of that? Mahalo, Ivan

Tiny
Ivan.cruz
Jul 5, 2011.
It's going to have to be troubleshooted to find out why.

Wrenchtech
Jul 5, 2011.
Will do. Thanks again. Aloha, Ivan

Tiny
Ivan.cruz
Jul 5, 2011.