My father in laws 03 RAM Cummins likes to freeze up the evap core in the summer months when it's humid. If you run the fan with the AC off for about 5 minutes the air starts moving out the vents again and you can turn the AC back on. Do these trucks have a freeze switch like the turbo cars? If so I think that might be the problem. Any suggestions are welcome.
84 Laser XE TII A555 89 Caravan SE TIV A568
i have the same problem i was going to look it to seeing had a cycling switch
Its got one. Ours never stopped working (knocks on wood) but it was somewhat nasty when we had the dashboard out to replace the heater core and evap core last fall. Cleaned it all up before reinstalling everything.
If you end up removing the dashboard just be prepared for the top plastic cap to crumble like eggshells and turns into dust…
1994 Shadow Sedan. 2.2 N/A, A568 400,000 miles. "the science experiment"
1987 Shelby CSX #418. Long term rebuild and restore ?
The top plastic already has a giant crack in it. Was the evap core in yours very dirty on the fresh air side when you replaced it?
84 Laser XE TII A555 89 Caravan SE TIV A568
It had a lot of crud collected in there. I am sure it would have eventually led to it rotting out on the bottom since it is just bare aluminum.
1994 Shadow Sedan. 2.2 N/A, A568 400,000 miles. "the science experiment"
1987 Shelby CSX #418. Long term rebuild and restore ?
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