1990 Eldorado a/c blows hot air

[fever502]

I have an a/c question for you guys!

I have a 1990 Eldorado. The a/c charge is fine. The pressures are low-35, high-225.

The compressor cycles normally. The high side line is hot and the low side line is cold/sweating.

The concern I am having is that there is warm-hot air coming from the vents inside.

I believe there is a blend door concern.

I self test the module but all I got was a code for the memory reset.

I found a reset procedure for the motor under the glove but have not performed that yet.

Have you seen any problems with these?

Thanks John

[KHE]

Sounds like it could be a blend door problem. Observe the blend door while you adjust the temperature from 60 to 90 and back to 60 to see if it is moving the door.

[95SevilleSLS]

I'd put money on a blend door probably sticking. You obviously don't have a problem with the A/C itself since the line is cold. I have the same problem for my rear a/c in my suburban.

[KHE]

I have the same problem for my rear a/c in my suburban.

The rear A/C problem in your Suburban is most likely due to a defective TXV (Thermal expansion valve) in the rear A/C circuit, not a blend door problem.

[fever502]

I found the problem. The blend door actuartor rod was caught on the wiring harness next to the blend door motor.

Thanks!!!!