[chasealley]

Hi guys,

Here's an update on what happened today.

Got van back after being in the shop to repair a nail in the tire. Before I started working I decided to check the rear aux discharge temperature with the digital gauge. It was 22C. I knew something was funky. Ambient temp outside was about 28C. Because I couldn't get my hands on the radio removal tool I decided to go ahead and take a look at the rear system to see what was wrong and leave the front for another day.

Once trim panels were removed I began tearing down to inspect the rear evap. It was fine. Absolutely. I blew compressed air at it from every access hole I could find and all I got was a little water. Did the heater core too. Cleaned the blower motor but it was pretty clean. Observed the pipes on the evap while running. One got cool (not cold or wet) and the other got warm (could still touch it). In contrast, the pipes going to and from the front evap were both cold.

One thing I noticed that may account for some of the problems in the rear was when the rear was controlled from the front controls both the floor and overhead vents were open! When the front was set to 'rear' control and the rear controls were cold the floor vents were closed. From the front if I switched the rear fan to high it would partially open the floor again. Seems odd. All tests are done with Max AC and both fans on high. I may have to rerun these tests back and forth several times to make sure that there isn't a sticking condition or similar.

My rad cooling fans both come on when MAX is selected but I can't verify if they are in low, medium or high speed. I'm not sure how to go about that test yet.

Anyway, do the temperatures of the pipes seem right? And, does the operation of the rear controls and front controls seem wrong?

And guess what? Picked up another nail! Looks like I'm starting off tomorrow same as today.